Method of soil reinforcement and device for its realisation

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

 

Technical solutions relate to the construction, in particular to the strengthening of the bases for foundations of buildings and structures by soil compaction, but also to the formation of piles.

Known method of sealing the loess soils at the base of buildings and structures according to the patent of Russian Federation №2915247, CL E02D 3/10, E02D 3/12, publ. 30.06.1994, including injection through the injector loess slurry under pressure to the hydraulic fracturing of the soil and soaking his subsequent injection of cement-sand mortar. The injection of the slurry is carried out, gradually increasing the pressure up to 3÷10 ATM, at a speed of 2÷5 m3/h during the time required for the formation of a hydraulic fracture in the array. Then the speed of injection of the slurry is reduced not less than 2 times to stop the growth of a hydraulic fracture and soaking the area around the crack. The injection of a cement-sandy solution are under pressure 3÷10 ATM, compacting loess soil soaked in the zone before reaching the porosity of the soil 38÷40%.

The disadvantage of this method is the need of hydraulic fracturing of the soil in which the injected fluid moves through the path of least resistance and seeks to enter the free surface. In this case, if occurs and a crack, it has the shape of a sleeve with an arbitrary orientation.

Therefore, to implement the method and to evaluate the results of its implementation.�niteline. Besides requiring a significant expenditure of energy for pumping loess pulp and cement-sandy solution through the channels of their injection into the seal area and the corresponding high-pressure injection system. All this causes a relatively low efficiency of the method.

The closest in technical essence and essential features is the method of strengthening the soil according to the patent of Russian Federation №2407858, CL E02D 3/12, publ. 27.12.2010 It involves the formation of the well, placing it stretchable waterproof enclosure, the flow of a sealing agent into the gap between the borehole wall and containment injection in this shell hydraulic environment and the creation of pressure in this environment. After creating the hydraulic pressure medium in a sealed envelope reset the pressure in the gap formed between walls partially defended well and sealed envelope should additionally provide a sealing substance. Then the cycle of creating pressure of the hydraulic medium in a sealed envelope, it is reset and additional supply of a sealing agent repeated.

In this way it is not excluded the possibility of squeezing a sealing agent from the sealing area in the gap between the borehole wall and its implementing device with higher education stretchable waterproof enclosure about�Ki, significantly impede future operations. In addition to the implementation of the method requires a large amount of different equipment, in particular, for sinking wells, build up pressure in a sealed envelope, and the filing of a sealing agent into the gap formed by stretching a sealed envelope at a considerable depth from the free surface. All this causes a relatively low efficiency of the method.

A device for the formation of directed fractures in wells according to the patent of Russian Federation №2182968, CL E21C 37/12, publ. 27.05. 2002, including the tube, is made with an annular stop on the end and longitudinal slots, and a rod placed in the tube with the possibility of longitudinal displacement. The tube is filled with non-Newtonian fluid, and on its end face side of the annular stop mounted Cup spring with the apex facing the stem. In stock made transverse hole in which is mounted a rod passing through the longitudinal slot.

For operation of this device requires prior completion of a well. It is intended for the formation of initial cracks across well low volume non-Newtonian fluid that is placed in the pipe. With increasing non-Newtonian fluid increases significantly the energy consumption for its extrusion through the pipe, as this case non-Newtonian fluid in contact with the pipe over a larger area and, hence, to move with great resistance. Therefore, soil compaction it is ineffective.

The closest in technical essence and essential features is a device for the destruction of rocks by the patent RF №2307934, CL E21C 37/12, E21B 43/26, E21F 7/00, publ. 10.10. 2007, including the working body, placed in the borehole filled with non-Newtonian fluid, and a means of application to the working body of the periodic shock loads. It is provided with a guide tube, which with the possibility of longitudinal movement of the inserted tool application to the working body of the periodic shock loads, made in the form of rods. The working body is made in the form of a piston mounted coaxially with the guide pipe with the possibility of contact with the end face of the rod.

For operation of this device required the well with solid walls, precluding rotation of the working body in the planes passing through the axis of the borehole, causing him significant deviation from a predetermined path. It is also possible destruction traversed in the ground well because of contact with the walls of the rod facing the lower end beyond the guide tube. Therefore, the use of this device for compacting soil is ineffective.

The technical problem solved is to improve the efficiency� method by increasing soil density introduction stretchable hermetic shell, bursting submission to it of a sealing agent, and the formation of piles driven in the ground and in improving the efficiency of the device by expanding its capabilities for the creation of piles driven in the ground.

The task is solved in that in the method of consolidation of the soil, including the formation of the well, placing in it a stretch of the containment and flow of sealing substance, according to the technical solution of the hole formed by driving into the soil pipe with a plug at the end and stretch a sealed envelope on the outer surface, wherein the sealing material is fed to the specified shell connections are made in the pipe longitudinal slots.

This technical solution allows without prior formation wells to inject into the soil to a desired depth in the pipe with the formation at its base of support, thereby forming a pile, on load capacity can surpass piles are scored in the traditional way, in ten and more times. This is due to the compaction of the soil at the required depth and creating compacted in the area of support required dimensions of durable material. Stretchable tight sheath eliminates the influence of the sealing substance of various solutions, mostly in the form of mineralized water contained in the zone of compaction, which greatly simplifies giving support required�the required strength characteristics, defined and achievable in the laboratory. By longitudinal slits are formed in the pipe band, which, as the filing of a sealing agent stretchable in a sealed envelope takes the shape of contour lines of the ellipsoid, and thus turn into reinforcement elements of the support, increasing its strength. As a result without Stripping works in the area of compacted soil by introduction stretchable hermetic shell, bursting submission to it of a sealing agent, and form a pile driven in the ground, increasing the efficiency of the method.

It is advisable to use a sealing substance, which, after its submission to the stretch sealed the shell hardens. This increases the strength of the support, increasing the carrying capacity, which increases the efficiency of the method.

It is advisable bodying agent to file stretchable in a sealed envelope by ousting him from the pipe by shock loads. This allows the use of known principles impact on the sealing substance to serve it in stretchable tight casing in unlimited quantities and at a depth sufficient for the construction of foundations for any buildings and structures. The impact on the sealing substance-impact applications provide�t its supply is stretchable in a sealed envelope without creating a high pressure injection installations and without the high energy costs for pumping a sealing agent through its supply channels to the sealing area. The result is increased efficiency.

It is advisable to use sealing substance to submit stretchable in a sealed envelope by ousting him from the pipe by impact loads from falling rod that interacts with the sealing substance through the piston. This allows you to use the same hammer mechanism for hammering the pipe and feed stretchable in a sealed envelope sealing agent in the mode of considering its features. Unlike strikers in the known drum machines falling rod may have a large mass of hundreds or even thousands of pounds. Therefore, because of its large inertia, the falling rod interacts with the sealing substance is relatively long, thereby stretching the duration of the shock pulse. While the sealing substance is the effect of hydraulic amplification, when the force on its contact with the rod is passed to the host environment has increased, which improves the result of exposure to the soil. In addition, this increases the efficiency of the equipment and environmental safety, decreases as the proportion of energy converted into elastic wave. The piston eliminates the sticking of the sealing of the substance on the bar, easing her reciprocating motion of the pipe. This increases effektivnostpukola.

It is advisable after the filing stretchable in a sealed envelope sealing agent pipe and the gap between it and the ground to fill in the hardening solution. This increases the strength of the pile and therefore the carrying capacity, which increases the efficiency of the method.

Advantageously as a sealing agent to use a non-Newtonian fluid. This allows changing the mode of displacement of non-Newtonian fluid from the pipe to change its flow in the direction of facilitating penetration stretchable in a sealed envelope. In addition, non-Newtonian fluids can be given different properties (waterproofing, strength, providing the curing and expansion upon hardening, etc.) and in combination with the length of the slits in the pipe and supplied with volumes of various shapes (ellipsoidal, circular, cylindrical), making it easy to adapt the constructed piles to the soil properties and natural conditions in the field of construction. The result is increased efficiency.

The task is also solved in that the device for strengthening the ground, including the working body and the annexes shock loads, consisting of a pipe, which with the possibility of longitudinal movement along it and contact with the working body of the inserted rod, according to the technical solution on a pipe and wearing W�krepline stretchable hermetic shell; under which the pipe has a longitudinal slot, the working body is made in the form of a rod forming the cap with a conical bevel on the end and inserted into the pipe with the possibility of a limited longitudinal movement on it, the rod has a device from falling out of the pipe and the conical sharpening sticks out of the pipe.

This technical solution provides for the formation at a given depth of support for pipe thrust stretchable hermetic shell, for example, by feeding it a non-Newtonian fluid in the required amount in hammer mode. Longitudinal slots in the tube to form a strip, which, as the flow of non-Newtonian fluid stretchable in a sealed envelope takes the shape of contour lines of the ellipsoid. Therefore, reliance is reinforced, which increases its durability. The technical solution also provides the introduction of the pipe into the soil to a specified depth. With a shock load from the rod affect only the working body, which reduces the inertia of the device and reduces the dynamic loads on other parts. The working body moves along a predetermined path, for it is in the pipe and cannot be rotated in planes passing through its axis. Thus, increases the efficiency of the device.

Advantageously the diameter of the base of conyn�th of taper of the rod to perform not less than the outside diameter is worn on the pipe stretchable waterproof enclosure. This greatly reduces friction stretchable hermetic shell on the ground when immersed in it pipe excluding damage, which increases the efficiency of the device by improving the reliability of its work.

The essence of the technical solution is illustrated by examples of the method of hardening of the soil, a specific embodiment of a device for hardening of the soil and of the drawings Fig.1, 2.

Fig.1 shows a diagram of a method of hardening the soil and device for its implementation prior to the formation of a support for the pile, a longitudinal section; Fig.2 - the same after the formation of a support for the pile.

The method of hardening soil implement using the device for the same purpose, as follows.

In the zone of hardening of the soil on the free surface install the device for hardening of the soil, including the working body and the annexes shock consisting of the pipe 1 with the plug at the end, which with the possibility of longitudinal movement along it and contact with the working body of the rod 2 is inserted. The pipe 1 is worn and fixed stretchable hermetic shell 3 (hereinafter sheath 3), by which the pipe 1 is formed with a longitudinal slot 4 (the - slot 4). The working body is made in the form of a rod 5 forming the plug, the tapered sastrei�m 6 (hereinafter cone 6) on one end and inserted into the pipe 1 with the possibility of a limited longitudinal movement thereon. In this case the rod 5 has a device from falling out of the pipe 1, for which there is a through longitudinal slot 7, through which skipped bonded with the pipe 1, the rod 8. Cone 6 protrudes from the tube 1. The base diameter of the cone 6 is made not smaller than the outer diameter of the shell 3. The rod 2 is lifted and released, from what it is under its own weight is accelerated and hits the end of the rod 5, which is embedded in the soil, forming the borehole 9. The rod 2 is lifted and released repeatedly until the bore 9 will not be driven to the desired depth. The diameter of the hole 9 is approximately equal to the diameter of the base of the cone 6. So the pipe 1 together with the shell 3, having a larger diameter than the base of the cone 6, is lowered into the borehole 9 under its own weight freely. After passing through the bore 9 until the desired depth of the pipe 1 remove the rod 2. Then the pipe 1 (Fig.2) to a predetermined level, due to the technology of the works, fill sealing material 10 (hereinafter, the substance (10) in the form of a non-Newtonian fluid. After that, the pipe 1 successively press the piston 11 and the rod 2. Shock loads on the piston 11 reusable lifting and releasing the rod 2, the material 10 is forced out of the pipes� 1 in the casing 3, which by then is inflated. As a result the soil consolidation occurs with the formation in it of the ellipsoid from 12 substances 10, isolated from the groundwater by the shell 3 and the reinforced strips 13 formed by the slits 4 in the pipe 1. The specified sequence of operations for filling pipe 1 substance 10, followed by displacement of the sheath 3 can be carried out repeatedly. The dimensions of the ellipsoid 12 is adjusted to the design values is supplied into the casing 3 of the substance 10 in the required amount. Then out of the pipe 1 remove the rod 2 and fill the pipe 1 and the gap between it and the bore 9 of the hardening solution, such as concrete (Fig.2 not shown). Note that after the completion of filling of the shell 3 to form the material 10 hardens.

As a substance of 10 intend to use non-Newtonian fluid, which, regardless of the magnitude of the external force is able to transfer pressure and relatively easy to change its shape. Such non-Newtonian fluid in contrast to the sand-cement aqueous solutions used, for example, for the creation of piles, does not change the ratio of components under load and is thus largely retains the necessary characteristics. To impart non-Newtonian fluid properties required and its cheaper it can enter various �napolniteli, for example, sand, crushed stone, gravel, etc. the Ratio of non-Newtonian fluid is selected so that it is at the time of filing it in the sheath 3 was plastic and did not change imparted to her form without external influence. As the binder, the filler particles can be used hardening resin with the addition of plasticizers. Such non-Newtonian fluid after curing become elastic and substantially increase resistance to dynamic stress, for example, earthquakes. However, in some cases economically feasible non-Newtonian fluid prepared using traditional sand-cement mixture, in which various additives to impart these properties. In the quality supplements you intend to use the lime, clay and waste lubricants.

Technical solutions are expected to be used in the construction in wet and marshy places of different structures, such as platforms, poles, under power lines, pipelines. The method allows to install piles with the supports at a considerable depth below the pond bottom from the water surface, which reduces the time and costs required for the construction of marinas, ports, bridges over small rivers, etc.

1. Method of strengthening the soil, including established�e wells placement in her stretch of the containment and flow of a sealing agent, characterized in that the hole formed by driving into the soil pipe with a plug at the end and stretch a sealed envelope on the outer surface, wherein the sealing material is fed to the specified shell connections are made in the pipe longitudinal slots.

2. A method according to claim 1, characterized in that the sealing substance, which, after its submission to stretch tight casing hardens.

3. A method according to claim 1, characterized in that the sealing substance is served stretchable in a sealed envelope by ousting him from the pipe by shock loads.

4. A method according to claim 3, characterized in that the sealing substance is served stretchable in a sealed envelope by ousting him from the pipe by impact loads from falling rod that interacts with the sealing substance through the piston.

5. A method according to claim 1, characterized in that after the filing stretchable in a sealed envelope sealing agent pipe and the gap between it and the ground is filled solid with mortar.

6. A method according to any one of claims.1-5, characterized in that as a sealing agent using a non-Newtonian fluid.

7. Device for soil stabilization, including the working body, and means for application thereto of a shock, with�worthwhile out of the pipe, in which with the possibility of longitudinal movement along it and contact with the working body of the inserted rod, characterized in that the pipe is worn and fixed stretchable tight sheath, by which the pipe has a longitudinal slot, the working body is made in the form of a rod forming the plug, with a tapered point on the end and inserted into the pipe with the possibility of a limited longitudinal movement on it, the rod has a device from falling out of the pipe and the conical sharpening sticks out of the pipe.

8. The device according to claim 7, characterized in that the base diameter of the conical taper of the rod is made not smaller than the outer diameter of the wear on the guide tube of stretchable waterproof enclosure.



 

Same patents:

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.

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.

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

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

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

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

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

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

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

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

FIELD: construction.

SUBSTANCE: method to reinforce soil, including formation of a well, installation of a flexible thin-walled shell in it, supply of a sealing substance into a gap between walls of the well and the shell, and development of a reinforcing action at the sealing substance, differing by the fact that for development of the reinforcing action, the thin-walled shell in the cross section is deformed into an oval shape, an additional gap is created along the small axis of the oval between walls of the well and the shell, the additional portion of the sealing substance is supplied into this gap, and the deformation wave is moved in the circumferential direction.

EFFECT: higher efficiency of soil reinforcing due to simultaneous reinforcement of soil and supply of a sealing substance.

13 cl, 19 dwg

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular, to construction and operation of structures, having architecture of various heights. Method to prevent uneven subsidence of unevenly loaded foundations includes survey of soil, reinforcement of soil base in compliance with the data produced as a result of soil survey, and erection of foundation. Soil is surveyed under least loaded section of foundation. Then foundation is erected, and most loaded sections of soil base are reinforced by method of high-pressure injection proportionally to ratio of operational pressure of most loaded section to operational pressure of least loaded section.

EFFECT: provides for even subsidence of structure at various pressure of separate sections of foundations at soil by increasing stiffness of each section of base.

2 dwg

FIELD: building.

SUBSTANCE: method involves constructing multilayer foundation; erecting upper building structures. Process of foundation forming includes laying concrete layer on base; preparing water-proof layer above concrete layer; forming one or more cast-in-place and/or composite and/or precast reinforced concrete panels along foundation height or area; forming intermediate layer of hardening material under upper panel and/or panels before and/after their forming, wherein hardening material characteristics are determined from a given relation; forming channels with opened ends in upper panel so channels extend the full panel thickness and preferably have widened areas in lower parts thereof; installing tubes preferably having widened areas in lower parts thereof; sealing intermediate layer and/or water-proof foundation layer along foundation perimeter; channels are formed in places of highest design foundation settlement and deflection, including areas under load-bearing support structure building members, namely columns and/or walls. Upper channel and/or tube ends are located in access area. Channels and tubes are used for injecting hardening material in intermediate layer through upper channel and tube ends during erecting and/or using building, during performing building, including earth-moving, works near building or building structures, which may result in building settlement and/or heeling and/or deformation. Injection of hardening material forms separation into layers and/or cracks in intermediate layer, which are filled with hardening material. Hardening material is injected in channel or pipe having x, y coordinates with pressure, also determined from a given relation.

EFFECT: reduced building settlement, heeling and deformation during erection and usage.

14 cl

The invention relates to the construction, in particular to the construction and operation of buildings on slab foundations on non-uniformly compressible base

The invention relates to the field of construction and can be used in the device of the bases and foundations primarily on the soft ground and when the seal slaughter of bored piles by vtaplivanija (trebovaniya) macro-grained rock material or hard concrete mix

The invention relates to the construction, and in particular to methods of construction of foundations in the punched wells

FIELD: building.

SUBSTANCE: method involves constructing multilayer foundation; erecting upper building structures. Process of foundation forming includes laying concrete layer on base; preparing water-proof layer above concrete layer; forming one or more cast-in-place and/or composite and/or precast reinforced concrete panels along foundation height or area; forming intermediate layer of hardening material under upper panel and/or panels before and/after their forming, wherein hardening material characteristics are determined from a given relation; forming channels with opened ends in upper panel so channels extend the full panel thickness and preferably have widened areas in lower parts thereof; installing tubes preferably having widened areas in lower parts thereof; sealing intermediate layer and/or water-proof foundation layer along foundation perimeter; channels are formed in places of highest design foundation settlement and deflection, including areas under load-bearing support structure building members, namely columns and/or walls. Upper channel and/or tube ends are located in access area. Channels and tubes are used for injecting hardening material in intermediate layer through upper channel and tube ends during erecting and/or using building, during performing building, including earth-moving, works near building or building structures, which may result in building settlement and/or heeling and/or deformation. Injection of hardening material forms separation into layers and/or cracks in intermediate layer, which are filled with hardening material. Hardening material is injected in channel or pipe having x, y coordinates with pressure, also determined from a given relation.

EFFECT: reduced building settlement, heeling and deformation during erection and usage.

14 cl

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular, to construction and operation of structures, having architecture of various heights. Method to prevent uneven subsidence of unevenly loaded foundations includes survey of soil, reinforcement of soil base in compliance with the data produced as a result of soil survey, and erection of foundation. Soil is surveyed under least loaded section of foundation. Then foundation is erected, and most loaded sections of soil base are reinforced by method of high-pressure injection proportionally to ratio of operational pressure of most loaded section to operational pressure of least loaded section.

EFFECT: provides for even subsidence of structure at various pressure of separate sections of foundations at soil by increasing stiffness of each section of base.

2 dwg

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