Consolidating by placing solidifying or pore-filling substances in the soil (E02D3/12)

Strengthened soil for road construction // 2636176
FIELD: chemistry.SUBSTANCE: soil contains, wt %: natural soil 50-60, cement 10-15, fly ash 15-20, aqueous solution of polyvinyl alcohol 5-7% of concentration 1-2, water - the rest.EFFECT: increasing the strength of the fortified soil, utilizing ash.1 tbl, 1 ex
ethod of laying open face with eolian sand in shallow coal seam in western desert mining areas // 2635927
FIELD: mining.SUBSTANCE: method is proposed for laying an open face with eolian sand in a shallow coal seam in western desert mining areas that is suitable for a coal-mining face that has improved self-stabilization of the roof and has the ability to form an open face of a certain size in the back. With a small amount of work, including drilling from the earth surface into a shallow-lying coal seam and good flow rates of aeolian sand, drilling is performed on an open face formed after extraction of the working face, and the open slope is directly laid with eolian sand step by step before underground periodic loading so that the laying of the open face with eolian sand is provided. Since the occurrence of the coal seam in the west is shallow and there is a thick overlapping loose layer, as well as a thin rock foundation, the amount of work required for drilling is small, the costs are low and the construction cycle is short. In addition, the problems of destruction of the overlapping rock and sedimentation of the earth surface can be effectively solved, while eliminating the danger of breakthrough of water and quicksand, which reduces the impact on the environment of the western mining areas.EFFECT: new technical approach is designed for the initial development phase in the western desert areas of China's mining works, and has a high economic efficiency of production, provides a reduction in investments in equipment and low cost of laying.6 cl, 3 dwg

ethod for strengthening weak soils of roadbed base // 2627347
FIELD: construction.SUBSTANCE: method for strengthening soils, including feeding water and cement grout into the soil from the surface by water and cement high-pressure jets and forming a vertically oriented support system; feeding the water and cement grout is carried out under the pressure of about 50 MPa through a jet-forming nozzle in the process of immersing the plunger under the weight of theroller-injector in its housing; forming the vertically directed support system is carried out in the form of spatial cone-shaped columns.EFFECT: increasing the strength of the subgrade base soils of motor roads and railways, airfields and similar structures, improving the quality of consolidation, reducing the labour intensity of the equipment maintenance and the material resources.3 dwg

Grout for compensation grouting in soils of bases while eliminating deformations of buildings and structures // 2622054
FIELD: construction.SUBSTANCE: invention relates to the field of reconstruction of building structures, namely to eliminating their common deformations. The grout for compensation grouting into the base soils when eliminating deformations in buildings and structures contains, %: bentonite 60-80, Portland cement 10-30, a hardening accelerator up to 10, a plasticiser up to 2.EFFECT: increasing the reliability of works on eliminating deformations in buildings and structures.1 dwg, 1 ex
Strengthened clay primer // 2621802
FIELD: construction.SUBSTANCE: strengthened clay soil contains cohesive soil - loam or clay, binder - blend of blast-furnace or steel-smelting slag with blast-furnace slurry in a ratio of 9:1 and water to provide the required moisture, optimal for compaction, the mass ratio of soil to binder being in the range of 1:9 to 9:1. Domain sludge is used of the following chemical composition, wt %: Ctotal - 10.0-30.0, Fetotal - 20.0-50.0, SiO2 - 6.0-19.0, CaO 6.0-16.0, MgO 1.0-2.5, Al2O3 - 1.0-2.0, MnO - 0.13-0.3, Na2O - 0.5-1.1, K2O - 0.2-1.0, Zntotal - 0.01-0.03, Stotal - 0.1-1.0, pp. - 1.0-1.8.EFFECT: increase in strength, frost resistance and uniformity of strengthened clay soil, as well as utilisation of waste generated in the production of cast iron.2 cl, 10 tbl, 4 ex

Grouting method // 2613700
FIELD: construction.SUBSTANCE: method of grouting involves sequential injection masses of gas and of mounting solution into the compactor. The fortifying solution is made in advance. It consists of an aqueous emulsion of a mixture of epoxy resins and a hardener; after that compressed air at a pressure of 0.1-0.3 MPa is pumped into the soil mass to extrude the groundwater from the pores. The fortifying solution is then injected into the pore spaces under pressure of 0.1-0.2 MPa and molding is produced by re-injection of compressed air, followed by re-injection of the next portion of the fortifying solution.EFFECT: improved efficiency of grouting in sandy, macroporous and silty clay soils, including grouting at low temperature.6 cl, 3 dwg
Strengthening method of hardening filling mass // 2606729
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used in development of mineral deposits with stowing mined space. Method of hardening of filling mass, which involves placing in formed array of reinforcing elements simultaneously with hardening mixture used reinforcing elements are modified basalt microfibre (MBM) in amount of 7.1 % of binding substance weight. Microfiber contains, wt% basalt wool with organic impregnation – 99.3–99.6, carbon nano structures of fullerene type – 0.00001–0.01, water – rest.EFFECT: technical result is provision of safe conditions of mining operations at increase of strength of filling for tension.1 cl, 2 tbl
Composition for injection solution // 2606487
FIELD: construction.SUBSTANCE: invention relates to construction, and specifically to soils injection fixing compositions, mainly loess, in existing and newly constructed buildings and structures foundation. Injection solution composition contains binder and filler, wherein binding component is OTDV “Mikrodur”, and used filler is carbonate rock with chemical composition, wt%: CaO – 55.58; CO2 – 24.56; SiO2 – 9.42; Al2O3 – 2.90; MgO – 2.08; Fe2O3 – 1.05; SO3 – 0.53; CuO – wt%: OTDV “Mikrodur” 20–50, carbonate rock 50–80.EFFECT: technical result is reduction of costs and increased efficiency by providing high strength and water resistance of soil concrete mass, fixed by solution based on composition with maximum reduction of expensive imported product, OTDV (super fine binder) “Mikrodur”, with filler from local raw material, carbonate rock, which is brought to fine state.1 cl, 1 dwg, 1 tbl

Embedded injector // 2605979
FIELD: construction.SUBSTANCE: invention relates to foundation construction, is intended for embedment in weak water saturated ground of natural or artificial addition of fine-grained concrete or sand-concrete to required depth for its fixation and hardening. Embedded injector comprises hollow housing with fixator for concrete pipe in upper part; with outlet holes, made in its lower part and fixed tip. Cylindrical metal hollow barrel with embedded tip is placed inside hollow housing in its lower part, attached to injector housing by means of transverse steel axis with four output holes of rectangular shape. Opening of holes is performed due to lowering of cylindrical metal hollow barrel with embedded tip under pressure supplied to solution injector barrel. Wherein total area of outlets should exceed transverse size of injector by 1.1 times.EFFECT: technical result is increase of efficiency of embedded injector.1 cl, 3 dwg

Composition for injection solution // 2603989
FIELD: construction.SUBSTANCE: invention relates to construction, namely to compositions for injection fixing of loess soils in base of existing and constructing buildings and structures. Invention enables to obtain soil-concrete arrays with high strength properties (up to 25 MPa) and high water resistance at maximum replacement (up to 80 %) with local raw material of expensive import product OTDV “Microdur”, which reduces costs and increases efficiency, when performing injection works on fixing loess subsiding soils.EFFECT: technical result is reduction of costs and higher efficiency due to high strength and water resistance of soil-concrete array, fixed with solution on basis of binder component, with maximum reduction of expensive import product OTDV “Microdur” and filler of local raw material, which is cement kiln dust.1 cl, 1 tbl

Solution for preliminary pumping into soils of bases for elimination of deformations of buildings and structures // 2603786
FIELD: construction.SUBSTANCE: invention relates to reconstruction of building structures. Solution for preliminary pumping into soils of bases for elimination of deformations of buildings and structures, containing a mixture of water and dry ingredients on a mineral base with following ratio, wt%: microcement (type microdur) 20-50; colloidal silica 5-15, hydrated lime Ca(OH)2 10-25; mineral microfiller, for example carbonate flour, 20-50; suspension viscosity regulator, for example superplasticiser C-3, up to 2 % of weight of binder; water-retaining additive, for example, methylcellulose, up to 5 % of weight of binder.EFFECT: reduction of labour and materials consumption and higher reliability of works on elimination of deformations of buildings and structures.1 cl, 1 dwg

Composition for road construction // 2603682
FIELD: roads.SUBSTANCE: invention relates to road construction and can be used for arrangement of bases and topping of roads. Composition for road construction contains a mineral binder, filler, water and chemical additives such as octyltriethoxysilane / octyltriethoxysilane emulsion and an aqueous solution of copolymer based on polyoxyethylene derivatives of unsaturated carboxylic acid/carboxylate polyether, in the following proportions, wt%: portland cement - 6-12, filler - 72-88, octyltriethoxysilane/emulsion octyltriethoxysilane - 0.005-0.04, aqueous solution of copolymer based on polyoxyethylene derivatives of unsaturated carboxylic acid/carboxylate polyether - 0.02-0.20, water - 4.83-17.94.EFFECT: high frost resistance and strength of materials from soil, sand and macadam-sand mixtures, as well as economic efficiency of construction.1 cl, 1 tbl, 1 ex

Composition for soil conditioning and soil conditioning method // 2602253
FIELD: mining.SUBSTANCE: group of inventions relates to conditioning of soil during operation of tunnel boring mechanized complexes TBMC in working face, consolidation and stabilization of quicksand water-saturated soils. Composition for soil conditioning includes solution of structure-forming agent in an amount of 40-80 wt% by dry substance, which is colloidal silica, activator solution in amount of 20-60 wt%, which is mixture of calcium hydroxide, sodium hydroxide and sodium fluorosilicate or sodium sulphate in ratio of 40-60, 10-30 and 10-30 wt%, respectively. Invention discloses alternative versions of above composition with list of different types of structuring agents and activators. In method of soil conditioning components of above composition are introduced into soil by injection impregnation, or injection at high pressure by hydraulic fracturing, or injection at ultrahigh pressures and intensification of soil layers mixing under pressure. Method is developed in subclaims.EFFECT: providing drilling in flooded soils (quicksands) of high degree of fluidity with taking of drilled out soil with TBMC augers, consolidation and stabilization of quicksand soils.5 cl, 28 tbl, 12 ex
ethod of strengthening solution preparation // 2601885
FIELD: construction.SUBSTANCE: invention relates to construction and can be used for reinforcement of soil bases of constructed and repaired buildings and structures foundations by injection. Method of strengthening solution preparation involves mixing Portland cement, water, introduction of nano-additive and solution treatment. As nano-additive a mixture of nano-dispersed silicon dioxide particles of different specific surface area is used. Said nano-additive is added into water until obtaining colloidal solution of preset concentration, which is mechanically mixed and additionally treated with ultrasound. Then obtained colloidal aqueous solution is mixed with required amount of hardening water, and then with Portland cement. For significant increase of strengthening solution mobility it is reasonable to use a colloidal aqueous solution of nano-dispersed silicon dioxide particles mixture with different specific surface area, with concentration of about 20÷35 wt%.EFFECT: technical result consists in increasing mobility of strengthening solution and, consequently, volume of space filled with such solution through ground ruptures.1 cl, 1 tbl

Non-return check valve for a tubular consolidation element // 2599441
FIELD: manufacturing technology.SUBSTANCE: group of inventions relates to non-return valves for a tubular consolidation elements and is intended for reinforcement and consolidation of soil and similar rock. Non-return valve for tubular consolidation element includes a portion (4, 104) of valve made from elastomer material having at least one nick (41, 42, 43, 44, 150), which under the action of pressurized fluid substance opens outwardly. Portion (4, 104) of the valve during operation is connected with structural body (2, 102), which can be tightened selectively onto a tubular consolidation element (3, 103). Disclosed is a tubular consolidation element with such non-return valve and method for making said non-return valve.EFFECT: group of inventions is aimed at improving operating reliability of non-return valve.13 cl, 8 dwg

ethod of minimising pack compression // 2598107
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used in development of mineral deposits with goave packing. Method of minimising pack compression, which involves placing in the formed filling of reinforcing elements simultaneously with the hardening mix, herewith the said mixture components are mixed for at least 20 minutes, and the reinforcing elements used is actually modified basalt microfibre in the amount of 7.5 % of the weight of the binder, wherein the said microfiber contains, wt. %: basalt wool with organic impregnation - 99.3-99.6, nano-modifier - 0.0001-0.01, water - 0.3-0.5.EFFECT: technical result is providing safe conditions of mining operations at minimisation of relative deformation of pack compression.1 cl, 2 tbl

Organomineral additive for reinforcing sand // 2595280
FIELD: construction.SUBSTANCE: invention relates to construction of road bases and bases of utilities and can be used for reinforcement of sand. Organomineral additive for reinforcing sand, containing ground saponite-containing material, extracted from pulp of tail storage of industrial ore concentration of diamond deposits, characterised by that it contains said saponite-containing material, ground to particle size 307±83 nm, and additionally binder - 5 % solution of glyoxal, in following ratio of components, in wt% sand soil: said glyoxal - 0.52; said saponite-containing material 17.EFFECT: technical result is improved strength characteristics of sand soil.1 cl, 2 tbl, 2 dwg

ethod of pumping out carrier air from mixture of compressed air and binding agent // 2595034
FIELD: construction.SUBSTANCE: method for evacuating transfer air contained in a binding agent from a mixture of pressurised air and binding agent when stabilising earth masses by adding binding agent, in which method is used an apparatus comprising means for producing pressurised air, a binding agent container, a supply pipe for mixture of pressurised air and binding agent, and an apparatus for mixing binding agent into earth mass, wherein according to method, pressurised air used for transferring binding agent is evacuated through a separate discharge pipe by means of the following measures before pressurised air is conveyed into earth mass. Binding agent is conveyed into a storage space with a binding agent discharge opening into ground. Pressure level in apparatus is adjusted to be such that pressure in storage space exceeds counter-pressure caused by ground at discharge opening, whereupon binding agent discharges from storage space via discharge opening out into ground and at least a part of air discharges controllably from upper part of storage space into discharge pipe. Water is sprayed into supply pipe and flow rate of mixture of air, binding agent and water is accelerated momentarily by a Venturi-type nozzle, a so-called Laval nozzle, to disperse water into a mist to which powdery binding agent adheres, thus forming a sludge-like mass which is led to storage space.EFFECT: increasing carrying capacity of supports, reduction of material consumption and labour input of work.6 cl, 8 dwg

ethod of fixing and enhancing the carrying capacity of wet fine grain soils of running type under bases and foundations of buildings and structures // 2594495
FIELD: construction.SUBSTANCE: invention relates to construction, particularly, to techology of fixing the wet fine grain soils of running type under bases and foundations of buildings and structures. Method of fixing and enhancing the carrying capacity of wet fine grain soils running type under bases and foundations of buildings and structures involves deepening of injection wells through which low-viscosity solution is fed with the help of injectors under pressure. To increase the radius of propagation of the injection low-viscosity solution additionally at the distance of L, for example at least two side wells are drilled on both sides from 3 to 3.5 m from the injection well, into each of which device for pumping water, for example, perforated pipe, covered with a microporous material and connected to vacuum pumps is lowered, and water is pumped out of pores of injected wet fine soil, reducing resistance of interstitial water to injection low-viscosity solution, fed by the injector from the injection well, running in one time mode with vacuum pumps.EFFECT: technical result consists in increase of radius of propagation of the injection solution, and hence, pitch between injection wells and distance between rows of wells, reduction of material consumption and labour intensity of construction.1 cl, 2 dwg

Composition for stabilisation of clay soil and method for creating ground roads using thereof // 2592588
FIELD: construction. SUBSTANCE: invention relates to road construction of local and ground roads, including water-logged loam and clay soils with low bearing capacity. Composition for stabilisation of clay soil contains cement, brown coal fly ash, and soluble calcium salts in following proportions, wt.%: cement, 5-50, soluble calcium salt, 1-3, brown coal fly ash, the rest. Also described is method for creating ground roads using composition for stabilisation, and minimum processing of soil for depth of 5 to 15 cm, taking into account features of clay soil and proposed stabilising composition. Calcium salt solution or suspension in amount of up to 0.6 kg/m2 are added with water for soil moistening up to 16-20%, during creation of road surface. When adding inert filler, adding porous materials also suggested, and after compression and profiling, processing with polymer emulsions is suggested to impart hydrophobic properties to surface. EFFECT: technical result is upgraded strength of ground roads owing to composition for stabilisation of soil, which has properties of regeneration, and diffusion hardening soil into depth with time, due to diffusion of soluble calcium salts. 20 cl, 2 tbl, 4 ex, 6 dwg

ethod for soil and device for its implementation // 2588511
FIELD: construction.SUBSTANCE: invention can be used for securing of soil. Method involves formation of wells, introduction to the well extended charge, supply of hardening composition, and after filling the well compound elongated charge is exploded, and after explosion well again filled with compound. Input into the well of elongated charge and well filling compound is reciprocal over-rolling in well casing. Supply of hardening composition is performed in the cavity formed by the well wall and cover. In the cavity formed by bent sections of the shell, fluid is fed agent and shell is periodically rolled from the well. Elongated charges are placed between the well wall and cover.EFFECT: increasing carrying capacity of a pile.2 cl, 1 dwg

ethod of creating impervious screen in soil // 2583815
FIELD: construction.SUBSTANCE: invention relates to hardening of soil by soil hardening substances, and can be used for protecting concrete foundations, base and body of road bed of rail and motor roads from ground and surface water. Method involves immersing into soil of tubular injector with outlets, and supply under pressure through channel of tubular injector of hardening solution providing soil structure destruction and formation of impervious screen in form of solid vertical wall. First immersion of tubular injector is carried out into previously drilled well to depth of water-proof layer. Outlets of tubular injector are made in two levels, distance between them from bottom closed end is equal to half of whole tubular injector length buried into soil. Outlets of tubular injector are made in form of located horizontally nozzle. Supply of hardening solution through channel of tubular injector is carried out at pressure of 200-300 atm during lifting tubular injector from extremely lower position in soil to level, when upper nozzle reaches up soil surface level. As injected solution polymer hardening solution is used, providing formation of primary phase compacted waterproof viscous mixture soil with injected solution with further transition in solid part of impervious screen phase. Further from initial step immersion of tubular injector is performed in viscous mixture of ground with polymer hardening solution in extreme zone of developed screen.EFFECT: technical result consists in improvement of reliability of protecting concrete foundations, base and body of road bed of rail and motor roads against exposure to ground waters and higher labor efficiency.1 cl, 2 dwg

ethod for reinforcement of linear objects on sink hole-hazardous areas // 2581851
FIELD: construction.SUBSTANCE: invention relates to construction and repair of linear objects located in dangerous karst zones, namely, to strengthening soil foundation. Reinforcement method for linear objects in dangerous karst zones consists in determination of linear object zone where formation of at least one karstic cavity with diameter no more than 4 m is possible, driveway is removed in this zone, soil layer is cut with formation of trench width of which is not less than width of driveway to provide loam content in soil from 25 % to 35 % and sand of average size ranging from 75 % to 65 % respectively , soil is treated in trench and cut soil layer is treated in pile by adding to it loam or sand depending on the initial composition of soil, after which the soil in trench and pile is treated with polifilizator “PGSZH 1” in liquid form and polifilizator “PGSP 3” in the form of powder and stirs it. Steel galvanised corrugated sheets are placed on the treated in pit soil in a projection under applied movable loads and connected, layers of geoweb are laid above on which soil layer, treated in the pile is placed, it is compacted in the pit, one more layer of geoweb is laid on compacted soil, on which soil treated in pile is laid in several layers, each layer is compacted and driveway is arranged.EFFECT: technical result of the disclosed solution is increased safety of linear objects located in dangerous karst zones.8 cl

ethod of soil reinforcement // 2573144
FIELD: construction.SUBSTANCE: method of soil reinforcement includes submersion in soil of a tubular injector, having outlet holes and two outlet channels, and supply of a hardening solution under pressure through the first channel of the tubular injector at 200-300 atmospheres with the rotation of the injector, providing for the damage of the soil structure and formation of the reinforced area in the soil. As the injected solution they use a polymer hardening solution, through the second channel a stabiliser is supplied, which, when mixed with the injected solution, provides for its quick setting and non-washing under the action of ground waters, the produced columns transmit load from the structure weight to the bearing layers of the foundation.EFFECT: reinforcement of bases for foundations of buildings and structures by soil reinforcement under watered conditions.1 dwg

ethod to develop cutoff curtain // 2569965
FIELD: construction.SUBSTANCE: method includes erection of a water retaining earth dam 7, placement of a layer of geotextile needle-punched non-woven material 4 from synthetic fibres with volume density of 100-150 kg/m3 and treatment of dam slope with a water soluble powder polymer. After placement of the geotextile material 4 layer it is treated at negative temperature of ambient air by aqueous solution of polyvinyl alcohol and boron compound, for instance, borax or boric acid, with flow rate of 5-10 l/m2 at their concentration of 3.0…12.0%, 0.2…1.0% accordingly. Then after freezing of the applied solution the geotextile needle-punched non-woven material 4 is covered with a soil layer 3.EFFECT: increased reliability of hydraulic insulation of a cutoff curtain under impact of sign-alternating temperatures due to generation of a layer of cryogel composite by a freezing-thawing process, strength and antifiltration properties of which are not deteriorated under multiple impact of freezing-thawing processes.1 dwg

aking of cutoff curtain in soil by directed blast injection process // 2569383
FIELD: mining.SUBSTANCE: bore is drilled. Solid structure rock specimens from all lithological rock differences defining the soil depth with the limits of curtain depth. For all soil samples defined are the changes in normal strains in soil depth at the lower zone of the curtain to be created. Normal vertical strain, normal strain directed in horizontal plane along the dam slope dip line or relief depression slope line, normal strain directed in horizontal plane along the dam or the slope are defined. The number of points describing the change in magnitudes of normal strains at the curtain lower zone should be smaller than five with one metre spacing. Then, the distance from the transition from flat ground to hill side is defined by analytical relationship. Then, bores are drilled with spacing of 3.0 m. Injector is forced into the bores. Fixing agent is injected through said injector to get the lengthwise slit in the soil shaped to vertical fracture cavities oriented perpendicular to filtration flow by hydraulic impact.EFFECT: higher efficiency of cutoff curtain under definite geological conditions, lower labour and material input.1 ex, 1 tbl, 2 dwg

Head for forcing of consolidating liquid mixes at pressure // 2567247
FIELD: process engineering.SUBSTANCE: invention relates to high-efficiency head for forcing liquid mixes into soil to form compacted soil areas. Proposed head (10) comprises the components that follow. Outer cylindrical case (12) to define the central lengthwise axis (Z) and at least one top inlet (16) to intake fluids from tubing arranged above said head. At least one outlet side nozzle (11) is arranged in the plane, in fact, perpendicular to said axis (Z). At least one spiral channel (13) makes the spiral central line (m). Channel (13) communicates top inlet (16) with nozzle (11) to swirl the fluid therein about lengthwise axis (Z) to nozzle (11). Spiral channel (13) gradually converges to nozzle (11) and comprises the channel end section bent to said nozzle with convergence. Note here that spiral channel and end section in the lanes of cross-section are parallel with lengthwise axis and run tangentially to the spiral central axis and in cross-section planes and are perpendicular to lengthwise axis.EFFECT: higher fluid flow velocity and lower turbulence at normal power consumption.12 cl, 17 dwg

Road-building composite material // 2551560
FIELD: construction.SUBSTANCE: invention relates to construction and can be used for construction of an earth bed and a facility of reinforced road bases on roads of categories I-V in road climatic zones II-V, as well as pavements on roads of categories IV-V as material for construction of earth bed fills and reinforcement of soil bases of construction and other sites. Road-building material containing drilling sludge with density of 1.3 to 1.8 kg/dm3 and with humidity of 30%, cement as the main binding material in the amount of 5-15% of the weight of the mixture, wastes of thermal utilisation of oil sludges (ash slag) with density of 1.2 to 1.6 kg/dm3 in the amount of 30-40% of the mixture weight, mineral filler and a sorbent - complexing agent, where organic fibrous (peat) sorbent is used as the sorbent - complexing agent in the amount of 2-4% of the mixture weight; Portland cement is used as cement; additionally, it contains liquid glass or organohydride-siloxanes, and sand is used as filler, with that, content of sand as a part of material is 5, or 10, or 30 wt %. The invention is developed in subclaims of formula of invention.EFFECT: reduction of cement consumption; improvement of environmental situation due to utilisation of wastes of drilling and an ash and slag mixture.4 cl, 4 ex, 7 dwg

Device to seal areas of adjacency of metal-concrete in barrier structures of protective facilities // 2550712
FIELD: construction.SUBSTANCE: device to seal areas of metal-concrete adjacency comprises a plate steel part of protective sealed doors, hatches or flanges of tubular inputs of engineering utilities with holes for injectors. Holes are evenly arranged along the steel part. The device comprises a source of DC current with a rheostat or an autotransformer and an electromagnet. The electromagnet is installed on the steel part, with a coil in the form of a winding from current-conducting wire with insulation and ends of this wire, closed to poles of the source of DC current. The coil of the electromagnet is arranged on a crossbeam of the U-shaped magnetic conductor. The lower part of each stand of the magnetic conductor fully complies with the shape, volume and geometric dimensions of the inner space of the hole for the injector. The height of the lower part of magnetic conductor stands is equal to thickness of the steel part. The distance between centres of cross sections of the electromagnet magnetic conductor stands is equal to double distance between centres of holes for injectors.EFFECT: device makes it possible to increase quality of sealing, to reduce power inputs and consumption of materials.3 dwg
ethod for preservation and isolation anthropogenic deposits // 2547869
FIELD: chemistry.SUBSTANCE: invention relates to the field of ecology and environmental management, in particular to methods of waterproofing heap leach pads and waste deposits, in particular to the creation of screens of tailing dumps, sludge tanks, solid domestic waste landfills and bulk arrays preventing environmental pollution by toxic components and dusting as a result of infiltration and erosion processes. In the method of the preservation and isolation of anthropogenic deposits, which consists in preparing a waterproofing mixture containing polyethylene wastes, laying it on the surface of the storage area, application to the chilled surface of a drainage layer of a coarse material, preliminarily in screening the bulks on the surface of the array body the slope is created of 2-5° from the centre to the edges, after the creation of the said slope 0.2-0.4 m pugged clay and sealing are applied on the surface of the layer, laying of the waterproofing mixture to the prepared surface is carried out extrusively at a temperature of 180-200°C in bands with the width of 2-2.5 m with mutual 0.15-0.2 m overlapping, the said drainage layer is applied with the thickness of 0.1-0.15 m, and the waterproofing mixture as polyethylene wastes contains the polyethylene wastes of high and low pressure, and additionally - polyisobutylene and carbon black, with the following ratio of components, wt %: polyethylene wastes of high pressure 74-76, polyethylene wastes of low pressure 14-16, polyisobutylene 6-7, carbon black 3-4.EFFECT: formation of the coating that prevents the infiltration of atmospheric waters and productive solutions from the bodies of piles, dumps, sludge tanks and solid domestic waste landfills, increase in the strength of the said coating.2 ex

ethod of soil reinforcement and device for its realisation // 2547026
FIELD: construction.SUBSTANCE: method includes formation of a well, placement of a stretching tight shell in it and supply of sealing substance. The well is formed by driving a pipe with a plug at the end and a stretching tight shell on the outer surface into soil. The sealing substance is supplied into the specified shell via longitudinal slots made in the pipe. The device comprises a working organ and a facility of impact load application to it, comprising a pipe, where a rod is inserted as capable of longitudinal displacement in it and contact with the working element. The stretching tight shell is placed onto the pipe and fixed, and longitudinal slots are made underneath in the pipe. The working element is made in the form of a rod, forming a plug, with a cone-shaped tip at the end and inserted into the guide pipe as capable of limited longitudinal displacement in it. The rod comprises an accessory to prevent fallout from the pipe, and its cone-shaped tip protrudes from the pipe.EFFECT: increased density of soil by introduction of a stretching tight shell into it, expansion of device capabilities for creation of a pile with a support in a base.8 cl, 2 dwg
ethod to produce cracks in waterlogged clayey soils // 2545573
FIELD: construction.SUBSTANCE: method to produce cracks in clayey waterlogged soils includes drilling of wells, formation of cracks by injection of cracking material into a well, and tamping of wellheads. At the same time burnt lime of grade 1 and 2 is used for cracking. Wells are filled with lime in layers with subsequent ramming and compaction of each layer.EFFECT: increased effectiveness of formation of stable and resistant cracks in waterlogged clayey soils around a well in radial direction.
ethod of strengthening of saturated clayey soils // 2545564
FIELD: mining.SUBSTANCE: method comprises well drilling, cracking by injection into the well of crack-forming material, plugging of hole mouth. Meanwhile the well cross-section is transformed from cylindrical into square, and then layer by layer the well is filled with quicklime with compaction and sealing of each layer. Into the formed cracks in a radial direction from angles of square cross-section well and by means of injector the strengthening solution is injected. The method allows to obtain stable cracks in a radial direction from angles of well square, that results in increase of strengthening volume. Due to wedging action of lime slaking and the stress concentrations the cleavage cracks are formed, the length of which amounts 2-3 lengths of the side of square well, and the width 5-15 mm. At the expense of increase of parameters of cracks in a radial direction from angles of square section well with the subsequent injection of strengthening solution the physico-mechanical properties of the ground are improved, as far as the infilling of all formed cracks results in ground strengthening, that improves bearing capacity of clay saturated soils. Besides the given method allows to work with small-sized and minimum quantity of machinery in any conditions of building.EFFECT: increase of bearing capacity of clay water-saturated soils.
ethod to create anti-filtration screen of hydraulic structure for storage of industrial wastes // 2544376
FIELD: construction.SUBSTANCE: when creating an anti-filtration screen of a hydraulic structure for storage of industrial wastes, for instance, a sludge reservoir, layers of the screen on the base of the sludge reservoir are formed using a suspension of industrial wastes, containing finely dispersed particles, with compaction of layers. The base of the sludge reservoir is made from clay or loam, compacted, the compacted layer is poured with a water suspension of finely dispersed dust of gas treatment from electrothermal production of silicon and/or siliceous ferroalloys with the solid to liquid ratio within 3÷10:1. The suspension is maintained until absorption into the layer of the sludge reservoir base. The clay or loam layer is laid on top and compacted. The water suspension is poured in the amount of 50-100 l/m2.EFFECT: invention will make it possible to prevent contamination of soil layer adjacent to storages due to reduction of coefficient of filtration of insulating material, to recycle anthropogenic wastes in the form of a finely dispersed dust of gas treatment of electrically thermal production of silicon or siliceous ferroalloys.2 cl, 1 tbl
ethod of producing structural composition based on priming mixture by hardening // 2544344
FIELD: chemistry.SUBSTANCE: invention increases tensile and compression strength of priming coats, as well as water-resistance thereof while reducing binder consumption to 0.003-0.012 wt %. The effect is achieved by using cation-active imidazoline and polyacrylic acid in the composition, which form an insoluble polyelectrolyte interpolymer complex during chemical reaction.EFFECT: invention relates to a method of producing a stable structural composition based on a priming mixture of clay and sand as natural filler and can be used for industrial purposes for producing moulding agents, accelerated hardening of priming coats and endowing priming coats with hydrophobic properties.1 tbl

ethod and device to strengthen soil in area that requires strengthening // 2544187
FIELD: construction.SUBSTANCE: invention relates to construction, namely, to strengthening of soils. In the method of soil strengthening in the area to be strengthened, a compacting agent is supplied from a loading reservoir into soil with a mixing facility located in a device for supply of the compacting agent. The device for supply of the compacting agent is located in connection with a transfer facility, and a facility for mixing for a compacting agent located on the device for supply of the compacting agent, is moved by the transfer facility at choice to any point in the zone, which must be strengthened, in vertical direction (y), horizontal direction (x) and/or in perpendicular to substantially perpendicular direction to the plane stretching via the specified vertical direction and horizontal direction. A support bridge included into the transfer facility is located for passage via the area, which must be strengthened, and in connection with the support bridge the first transfer elements are located for movement of the facility for mixing of the compacting agent in vertical direction (y) and/or horizontal direction (x), and the transfer facility comprises the second transfer elements and the support bridge, and the device for supply of the compacting agent with the facility for mixing is moved by the second transfer elements in perpendicular to substantially perpendicular direction to the plane passing via the specified vertical direction (y) and horizontal direction (x), and providing both ends of the support bridge by the second transfer facilities to maintain the support bridge on the material of the support and/or the soil of the base, as a result of which the distance (A) between the second transfer facilities is adjusted for compliance with the width of the area to be strengthened, in longitudinal direction of the support bridge.EFFECT: increased stabilisation of soil strengthening, reduced labour intensiveness and material intensity in production of works for soil strengthening.9 cl, 2 dwg

ethod of protection of karst occurrence // 2543162
FIELD: mining operation.SUBSTANCE: method of protection of karst occurrence comprises drilling wells in the area of karst formation and injection of reinforcing material. While injecting the reinforcing material in the form of a polymer-mineral composition in the rock mass of the area of karst formation two layers are created: the lower insulating-stabilising layer which prevents access of water to the karst at the depth of occurrence of karst rocks and stabilising the situation at the stage of karst formation, located within the boundaries of the sliding wedge, and the upper bearing layer serving as a bearing local layer and corresponding to the width of the lower layer. Drilling wells is carried out sequentially - first inclined well is drilled to the upper transition zone of the geological horizon exposed to karst formation, the polymer-mineral composition with the capacity from 2 to 10 meters is pumped, which forms a lower insulating-stabilising layer, then the inclined well is drilled to contact with the upper boundary of groundwater, and the polymer-mineral composition with the capacity from 2 to 5 meters is pumped, which forms the upper bearing layer. Then the control vertical well is drilled to contact with the upper bearing and the lower insulating-stabilising layer. The core-sample is raised from each layer to check the presence of the polymer-mineral composition. Between the bearing and the insulating-stabilising layers in the rock mass the channel of flow of groundwater from the water collection area to the discharge area is formed, preserving the natural hydrogeological mode in the rock water-bearing mass of the karst formation area.EFFECT: increase in protective properties of rocks with karst occurrence, improvement of physical and chemical and bearing properties of the soil, increase in the strength properties of the soil, reduction of the possibility of landslides occurrence.3 dwg

Reinforcement method of foundations of buildings on structurally unstable soils and soils with karst formations // 2537448
FIELD: construction.SUBSTANCE: first, size and depth of a karst formation under a building foundation is determined; then, the first type of wells is formed along the building perimeter at least in one row; injectors are introduced to each of the above wells and a hardening solution is injected into well walls. Wells are formed so that at injection between adjacent wells in the row there can be formed intersecting zones of compacted soil; in the lower zone of loose soils of geomassif, which are located around a karst formation caving zone, there formed are at least two rows of wells of the second type, which are located in an arch periphery line, into which there also pumped is a hardening solution by means of injectors, so that wall-shaped structures are formed by means of the hardening solution throughout the height of the karst formation out of intersecting solid elements that are flat as to vertical direction. Then, in the lower zone of loose soils of geomassif, which are located above dome-shaped arch of the karst formation caving zone, there formed is the third type of wells located along the imagined surface of the dome-shaped arch of the karst formation and going beyond the perimeter of the zone enveloped with wells of the second type, to which there also pumped is the hardening solution by means of injectors, so that a dome-shaped massif of at least one layer of intersecting flat-parallel elements is formed above the karst formation with formation of compacted geomassif above the dome-shaped massif. After that, at least one well of the fourth type is formed with its opening to the cavity of the karst formation, which is filled with the hardening solution, with formation in the cavity of the karst formation of a volumetric elements; at availability of suffusion processes in the karst formation, to the karst formation cavity there added is at least one flexible envelope, to which the hardening solution is pumped, after hardening of which the soil is additionally compacted above layers of flat-parallel elements of the dome-shaped massif by pumping of the hardening solution in a downward or upward direction to cracks and cavities formed during formation of a dome-shaped arch out of flat-parallel elements. Cement mortar and/or raw mix containing a siliceous component, a gas-forming agent and a mixing agent is used as a hardening solution.EFFECT: improving reliability of reinforced geomassif; reducing labour input and material consumption at its formation.8 cl, 4 dwg

ethod to compact soil and device for its realisation // 2535564
FIELD: construction.SUBSTANCE: method includes injection of a sealing substance, providing for damage of soil structure. Soil compaction is carried out by development of bodies in it with specified dimensions, shapes and properties from non-Newtonian liquid, which does not change the ratio of its components under load and preserves shape given to it with absence of external impact, which is injected by pressing into soil with impact loads applied to its surface. Soil is compacted by its displacement by external surface of developed bodies from spaces that they occupy. The device comprises a working element and a facility to apply impact load to it, made of a guide pipe, into which a rod is inserted as capable of movement along it and contact with the working element. The working element is made in the form of a rod with a conical point at the end and is inserted into the guide pipe as capable of limited longitudinal displacement in it. The conical point of the rod protrudes from the guide pipe. On the working element there is an assembly that excludes its drop-out from the guide pipe.EFFECT: increased density of soil by introduction of non-Newtonian fluid into it in the mode of periodical impact loads and increased efficiency of a device due to elimination of the possibility to damage a well with a rod and deviation of the working element from the specified path.5 cl, 1 dwg

Composition for sandy soil reinforcement // 2534862
FIELD: mining.SUBSTANCE: composition for sandy soil reinforcement, comprising a filler and a binder component, and the filler comprises sand milled to fine dispersion (74-136 nm), and the binder component is used as saponite-containing material milled to microdispersed state (265-451 nm) isolated from pulp of tailing dump of industrial ore dressing of diamond field deposit, with the following ratio of components, wt %: saponite-containing material 3-6, sand - the rest.EFFECT: improving the strength characteristics of sandy soil.2 tbl, 3 dwg

Device for mixing soil materials // 2521211
FIELD: agriculture.SUBSTANCE: invention relates to a device for mixing soil materials, in particular to a device for mixing additives directly with soil materials of the ground. The device comprises at least two mixing drums made with the ability to rotate around their axes of rotation which are located at a small distance from each other. Between the drums the fixing frame is located, on which the drop sleeve is fixedly mounted. At the upper end of the drop sleeve the attachment means are located for attachment to the lever for mounting the attached implement. The rotation axes of the mixing drums are inclined relative to the plane perpendicular to the vertical axis of the device, so that when the drop sleeve is in the upright position, the axes of rotation of the mixing drums are inclined downward toward the outer ends of the drums. Thus, the ends of the mixing drums, located closest to each other, are substantially closer to each other with their lower edges than with their upper edges.EFFECT: device housing does not create a dead zone which would prevent the working movement.8 cl, 4 dwg
Composition for arrangement of bases of road pavements and other structures // 2520118
FIELD: construction.SUBSTANCE: invention relates to construction and utilisation of wastes of heat engineering, and namely to reinforced ground compositions (soil cements), which can be used for construction of structures, including in structures of bases of road pavements of automobile roads; in an earth bed of automobile roads and other structures; for backfilling, elimination and recultivation of developed soil banks and slurry ponds; for reinforcement of sides of roads, slopes and cavities. Composition for arrangement of bases of road pavements and structures, which includes cement, slurry of chemical water treatment of CHP, and when necessary, for assurance of required humidity (optimum for compacting), it additionally contains sand at the following component ratio, wt % (by solid phase): sand 57-82, cement 6-12, CHP chemical water treatment slurry (on a dry basis) 12-30. The invention is developed in a subclaim of the formula.EFFECT: accelerating strength gain.2 cl, 4 ex, 5 tbl

ethod to determine quantity of cement in soil-cement material of structure // 2513567
FIELD: construction.SUBSTANCE: invention relates to technology of construction and may be used to determine quantity of cement in soil-cement material in creation of building structures by means of jet cementing. The method to determine quantity of cement in the soil-cement material of the structure in development of building structures by means of jet cementing consists in addition of a powdery indicator into the cement mortar injected into a well. Such powdery indicator may be powder graphite, fineness of grinding of which is not below fineness of cement grinding. Weight ratio of graphite powder makes 1-10% of cement weight. During realisation of the method they first measure electric conductivity of the injected cement mortar, then electric conductivity of the soil and cement pulp discharged from the well is measured, and the quantity of cement in the soil-cement material of the structure is determined as difference between the cement quantity in the cement mortar and the quantity of cement in the pulp. The quantity of cement in the pulp is calculated in accordance with the following formula: mcn=mcλnλc, where mcn - quantity of cement in the pulp; mc - quantity of cement in the cement mortar; λn - value of pulp electric conductivity; λc - value of cement mortar electric conductivity.EFFECT: higher efficiency of the method.

ethod to strengthen natural soils and mineral materials for construction of roads // 2509188
FIELD: construction.SUBSTANCE: in the method to strengthen natural soils and mineral materials for construction of roads with using of hydraulic mineral and water-dissolved polymer binders, including cement and latex of copolymers on the basis of sterol, ethers of acrylic acid, butadiene, acrylonitrile, ethylene with vinyl acetate, vinyl chloride or their mixtures with additives of thickeners on the basis of cellulose, defoaming agents of siloxane type and ether of glycol with regulation of pH by caustic, the specified polymer binder is used, polymer particles in which have dimensions from 50 to 200 nm, preferably 80-160 nm, with an additive in the amount of 0.1-5.0 wt parts per 100 wt parts of dry substance of the specified binder as a coalescer - ether of glycol of simple mono- or diester of ethylene- or diethylene glycol or aromatic hydrocarbon, for instance, white spirit, the value pH equal to 6.5-9 is set when using caustic in the form of 1-2% solution.EFFECT: higher strength, water resistance.10 ex, 4 dwg

ethod of intense soil strengthening under existing building // 2507342
FIELD: construction.SUBSTANCE: method of intense soil strengthening under an existing building includes formation of a peripheral row in the zone of performance of restoration works along the perimetre of a strengthened base of sagging soil and cellular structure in the zone of the strengthened base of the soil by drilling of depth wells to the depth of sagging soil, filling of injectors into wells, their sealing and injection of a hardening mortar under pressure in a certain sequence of sagging horizon strengthening. Relative to the structure contour they create a process base zone of multi-level support horizons of a counterforce body, in which at the bottom they form a root of stabilisation of sagging soil by the method of forced main and additional stage-step injection of an active mass of the mortar, distribution and regulation of sagging soil in volume density at joints of sections of the contact and combination of complect-active heterogeneous systems, direct and reverse pressing of a zone of relaxation sections in volume density of sagging soil at joints of contact sections under alternating directivity of supply of an active mass of mortar at variable angles in horizontal planes of multi-level support horizons. Intensive development is created to move mortar through soil by forced and transverse shift forces relative to each other in different levels of horizons of a counterforce body in direction of counteraction of strengthened soil resistance forces. Locations of nodal directivity of mortar injection into soil are distributed and formed with possible correction of required linear and angular parameters of directivity of reciprocal displacement of the mortar, consolidation and formation of the soil structure. Injection of the mortar into shafts of depth wells is carried out in steps by horizons and formation into a single volume-space structure of soil to the entire depth of the active base zone of relaxation sections of the counterforce body. Introduction of an additional injection of mortar and creation of a retaining force is carried out in the form of supply of a by-mortar and serial selective direction, distribution and formation of its position at local sections of horizontal transitions of basic zones of relaxation sections of the counterforce body in the sagging soil under the existing building.EFFECT: higher intensification and efficiency of soil strengthening under an existing residential building.5 cl, 5 dwg
ethod for stabilisation of soil or foundation // 2503768
FIELD: construction.SUBSTANCE: method consists in treatment of the latter by a stabiliser containing latex polymer, which is applied mixed with water. Treatment of soil or foundation is carried out by introduction of the stabiliser by means of a cutter by the cutting method as the stabiliser is mixed with ground or foundation. The latex polymer is represented by latexes from the group that includes sterol-butadiene latex, (meth)acrylate latex, ethylene-vinyl acetate latex, ethylene/propylene latex, ethylene/propylene-dimer latex, butadiene-acrylonitrile latex, silicon latex, polybutadiene latex, latex from natural rubber or mixture of two or several of the specified latexes. The stabiliser additionally comprises a thickener based on cellulose, a defoaming agent selected from the group including silicons, glycol ethers, natural fats or oils and fatty alcohols, and also at least one chloride or at least one hydroxide of alkaline or earth metal, besides, the stabiliser has the following composition (wt %); 0.1 - 50 latex polymer, 0.05 - 5 thickener, up to 5 defoaming agent, 0.01 - 10 chloride or hydroxide of alkaline or earth metal, residue to 100 - water.EFFECT: fixation and stabilisation of soils or foundations, making it possible without removal and recycling of oil soil and special costs to perform construction-earth works.6 cl, 2 ex

ethod to construct buildings, structures on unevenly compressible soils // 2494194
FIELD: construction.SUBSTANCE: method to construct preferably high and high-rise buildings and structures on unevenly compressible soils, according to which, after erection of another group from one or several floors of the building, they measure subsidence of foundations, average inclinations of the upper slab above this group of floors and average inclinations of upper slabs above all previously erected groups of floors. On the basis of measurement results and their analysis they decide on deformations of the base and strain stress behaviour of the building at the moment of measurements and until completion of the building, and also on the necessity to impact the soil or the foundation. At first the foundation is erected as designed not for a full load from the building, but for its part, for instance, from the half of the building, in process of erection of this part of the building they measure deformations of foundations and inclinations of slabs, they are used to assess actual characteristics of soil deformability, strain stress behaviour of the building at the moment of measurements and for its completion, and also the necessity to increase the bearing capacity of foundations. Afterwards, if necessary, works are performed to increase the bearing capacity of the foundations by means of increasing of foundation size, strengthening of soils under foundations, for instance, by means of injection of setting solutions, addition of a solid reinforced concrete board to the previously erected foundations, or pressed, screwed or bored piles. The bearing capacity of foundations is increased only in that part, that volume and at that level of height of the constructed building or structure, which provide for safety and permissible level of building deformations until its completion.EFFECT: increased accuracy of assessment of soil compressibility characteristics in a foundation base in process of erection of a building, a structure, increased validity of analysis of strain stress behaviour of a structure during erection and upon completion of construction, reduced labour intensiveness.1 tbl, 9 dwg
Earth mixture // 2493325
FIELD: construction.SUBSTANCE: earth mixture contains the following components, wt %: homogeneous mixture of natural soil, not containing inclusions with size of more than 50 mm 69.0 - 88.0, portland cement 1.5 - 5.5, bentonite powder, modified by soda, for drilling muds 0.8 - 3.3, water - balance. The earth mixture may contain portland cement PC 400 and additionally a lime additive in the amount of 0.5 - 2 wt %.EFFECT: reduced consumption of a binder with preservation of higher values of earth mixture bearing capacity, stability of volume filling to strengthening, possibility to again use strengthened soil.2 cl, 2 ex, 2 tbl

ethod to strengthen foundation bases in seismically dangerous areas // 2487976
FIELD: construction.SUBSTANCE: method to strengthen foundation bases in seismically dangerous zones includes indentation of injectors into soil and supply of a hardening mortar through them under pressure first along the periphery of the strengthened area until closure of adjacent sealing zones, and after hardening of the mortar - inside the produced contour. Previously the strengthened area is broken into equal parts of the rectangular shape. After supply of the hardening mortar along the periphery of the strengthened area they supply a mortar along the periphery of each part of the rectangular shape also until closure of the adjacent sealing zones. After hardening of the mortar they supply the hardening mortar inside the produced contours of the rectangular shape, besides, injectors inside contours are installed in the staggered order.EFFECT: higher reliability of a foundation due to strengthening of a foundation base with increased coefficient of attenuation of seismic oscillations.3 cl, 1 dwg

Equipment for jet cementation // 2485249
FIELD: construction.SUBSTANCE: equipment for jet cementation for creation of pillars of fixed soil, having nonround cross section, comprises a mast, a rotator, moved along the axis parallel to the mast and controlled when rotated around the specified axis, a set of hollow pump rods, temporarily disconnected with the rotator, a feeding facility for injection of a cement mortar of fixing fluid medium into soil via a string of pump rods, and a facility for variation of rotation speed in at least one specified angular range around the axis. Additionally it comprises a rotor directly attached to one of pump rods of the string and technologically connected with at least one signal-generating device, installed on the non-rotary part of the equipment and made as capable of control signal generation to change speed of rotator rotation in response to the angular position of the rotor, and a through clamp, installed on the rotary mandrel of the rotator, equipped with a fixation facility, which may be put in action for pressing of the pump rod and make it built into the rotator, and which may be deactivated, to release the pump rod and provision of rotator movement relative to the pump rod.EFFECT: increased accuracy and depth when performing works to strengthen soils, reduced labour intensiveness and material intensity.13 cl, 15 dwg
 
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