Method to create anti-filtration screen of hydraulic structure for storage of industrial wastes

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

 

The invention relates to methods for the prevention of pollution of soil and groundwater components of industrial waste, in particular to the creation of impervious screens of landfills and waste disposal, sludge fields.

The method for formation of a protective screen, which consists in the preparation of waterproofing mixture containing waste polyethylene, laying it on the basis of storage and heat treatment, which is prepared a mixture of waste polyethylene 70-99% and PP 1-30%, after laying at the base of the vault, it is subjected to heat treatment at a melting temperature of the mixture or of the surface of the storage layer (patent RU No. 2255178, E02D 3/12, E02B 3/16, publ. 27.06.2005. The implementation of this solution requires a significant investment, both at the preparation and formation of the waterproofing layer and the energy cost of manufacture of this layer.

A method of construction of a grout curtain, including the development of the trench under the protection of the clay suspension and filling the trench clinicamente solution with the simultaneous displacement of clay suspension in which before filling the trench clinicamente last solution foamed by mixing with technical foam (and.with. USSR №987010, E02B 3/16, 1990). This solution requires the implementation of a significant�individual costs, as the material (cement, technical foam) and cooking clinicamente solution and mixing it with the technical foam, it does not provide high impervious properties, as "in the body of the curtain formed by local voids that extend path filtering" that may eventually lead to the formation of filtration channels, polluting the groundwater and the environment.

A composition impervious screen used at the alumina refinery sludge, consisting of a double layer of polyethylene film with a protective ground (Guild A. I., Application of asfaltobetona in waterproofing coatings collectors. "Nonferrous metals", 1978, No. 11, pp. 58-59). The implementation of this solution requires a significant investment, both at the preparation and formation of the waterproofing layer and the energy cost of manufacture of this layer.

A method of creating a waterproofing elements of hydraulic structures, including the delivery of the material, its preparation and laying, in which the material waterproofing element used slurry from the processing of bauxite by the Bayer process emerging from the process with humidity T:F=1:2-10, before laying preparing by dehydration to a moisture content of T:F=1:0.5 to 0.6, the content faction� +50 μm in the slurry is not more than 10 wt.%, after that the prepared material is compacted to a porosity of not more than 0,60-0,65 (and.with. USSR №1564257, E02B 3/16, 1990).

The main disadvantage of this technical solution adopted for the closest analogue, is a significant cost to the dehydration of the slurry, the complexity of the preparation, laying and compaction of wet material, is not high enough impervious properties of the screen.

The objective of the proposed solutions is to reduce the cost of creating impervious screen of hydraulic structures for the storage of industrial waste and increase of ecological safety of the repository.

The technical result is used as part of anti-filtration screen natural materials and industrial waste, increased impervious properties of the screen.

The technical result is achieved in that in the method of creation of impervious screen of hydraulic structures for the storage of industrial waste, such as sludge collector comprising forming layers of the screen on the basis of the tailings pond with the use of industrial waste slurry containing fine particles, the seal layers, the base of the tailings pond are made of clay or loam, compacted, poured on compacted layer of an aqueous suspension of fine dust scrubbing electrothermy�die the production of silicon and/or silicon ferroalloys in the ratio l:s within 3÷10:1, withstand the suspension until absorbed into the Foundation layer of sludge reservoir is placed above a layer of clay or loam and condense it.

This aqueous suspension is poured in the amount of 50-100 l/m2.

Comparative analysis of the solution to the nearest analogue and the proposed solution shows the following.

Known solution and characterized offer similar features:

- method of creation of impervious screen of hydraulic structures for the storage of industrial waste, including:

- formation of the layers of the screen;

- use of industrial waste slurry;

- use of industrial wastes containing fine particles;

- seal layers.

The proposed solution differs from the closest analogue of the following features:

- Foundation of hydraulic structures for the storage of industrial waste sludge collector is made of clay or loam;

- the base of the tailings pond of clay or compacted loam;

- poured on compacted layer of an aqueous suspension of fine dust scrubbing electrothermal production of silicon and/or silicon ferroalloys;

- in suspension support against W:T within 3÷10:1;

- maintain suspension to absorb the layer below;

- laid on top of the clay layer or sugli�ka;

- the top layer of clay or loam compacted.

This aqueous suspension is poured in the amount of 50-100 l/m2.

The presence in the proposed technical solution of signs, other than signs solutions closest analog, allows to conclude that the proposed condition of patentability "novelty."

The technical nature of the proposed solution is as follows.

In the composition of membrane screen use natural material comprising clay or loam, and as technogenic waste aqueous suspension of fine dust scrubbing electrothermal production of silicon and/or silicon ferroalloys.

Fine dust gas cleaning electrothermal production of silicon and/or silicon ferroalloys contain fine particulates, mostly silica, and have the following composition, wt.%:

SiO280,0 and 95.0
Al2O30,2-0,5
Fe2O30,2-0,5
CaO1,2-4,0
MgO0,8-3,0
Cfree3,0-8,0
Na2O0.1
SO30,1-0,2
P2O50,1-0,15
K2O0,1-0,4
TiO2to 0.02
SiC3,0-5,0

The chemical composition of the dusts can vary, depending on the source of raw materials and technology, but the content of the main component is silicon dioxide, which is within the specified limits.

Dust have the following particle size fractions:

mcm%
0-113,0
1-313,8
3-58,4
5-10the 10.4
10-2014,8
20-297,0
>30of 32.6

Haibara�the surface obayatelnaya, charming - 15-28 m2/g bulk density - 0.2-0.25 g/cm3.

Fine dust gas cleaning electrothermal production of silicon and/or silicon ferro-alloys belong to the group wasgonna dusts formed by the evaporation in the zone of high temperatures and subsequent condensation of sublimates. Particles of such dusts are equally static electric charge.

Increasing impervious material properties due to the presence of micro-particles that overlap existing pores and with high specific surface area dust.

The formation of the screen layers to produce a seal layer of natural material in the form of clay or loam. When this is poured on compacted layer of an aqueous suspension of fine dust scrubbing electrothermal production of silicon and/or silicon ferroalloys in the ratio l:s within 3÷10:1, incubated suspension until absorbed into the underlying layer. When the ratio W:T less than 3:1 slurry has a high viscosity, difficult to uniform deposition of material on compacted layer of clay or loam. When the ratio W:T greater than 10:1 little amount of dust in suspension, reduced impervious properties of the screen.

Use in the construction of industrial waste sludge collector allows you not only to utilize them effectively, but also reduce sebastain�efficiency of the construction of the tailings pond by reducing construction costs as by reducing the cost of materials, and by reducing energy and labor costs. Thus impervious properties of the resulting screen fully meet the requirements.

The results of practicing the creation of impervious screen of the proposed method are given in the table.

№ p/pImpervious screenScreen featuresThe absorbtion time of suspension, hThe filtration coefficient, m/day
12345
1Compacted loam300 mm-3,2·10-4
2Compacted loam - bottom layer200 mm2,01,3·10-4
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
30,0 l/m2
Compacted loam upper layer100 mm
3Compacted loam - bottom layer200 mm3,59,5·10-5
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
50,0 l/m2
Compacted loam upper layer100 mm
4Compacted loam - bottom layer200 mmto 12.02,7·10-5
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
100,0 l/m2
Compacted loam upper layer100 mm
5Compacted loam - bottom layer200 mm64,0 2,9·10-5
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
200,0 l/m2
Compacted loam upper layer100 mm
6The compacted clay300 mm-the 7.2·10-6
7The compacted clay - bottom layer200 mm3,0the 5.7·10-6
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
30,0 l/m2
Clay compacted upper layer100 mm
8The compacted clay - bottom layer200 mm6,04,9·10-6
The aqueous suspension of dust scrubbing electrothermal production of silicon W:T=5:1
50,0 l/m2
Clay compacted upper layer100 mm
9The compacted clay - bottom layer100 mm27,01,5·10-6
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
100,0 l/m2
Clay compacted upper layer100 mm
10The compacted clay - bottom layer200 mm80,0the 1.45·10-6
The aqueous suspension of dust scrubbing electrothermal production of siliconW:T=5:1
200,0 l/m2
Clay compacted upper layer100 mm

The studies used loam, clay and water slurry dust scrubbing electrothermal production of silicon. Attitud�tion W:T accepted 5:1. When the ratio W:T less than 3:1 the dust bad and unevenly distributed over the surface. The ratio of W:T greater than 10:1 is impractical because it increases the volume of the slurry decreases the effectiveness of dust within the screen. The use of suspension in an amount of less than 50 l/m2the surface gives a slight effect on increasing the impervious properties of the screen, and when the number of suspensions of more than 100 l/m2the surface efficiency is not increased, but significantly increases the absorbtion time of the slurry in the bottom layer constructed of impervious screen.

The use of the proposed technical solution allows to reduce the cost of construction of a sludge reservoir to prevent contamination adjacent to the storage of the soil layer due to the reduction of the filtration coefficient of the insulating material, dispose industrial waste tonnage in the form of fine dust scrubbing electrothermal production of silicon and/or silicon ferroalloys.

1. Method of creation of impervious screen of hydraulic structures for the storage of industrial waste, such as sludge collector comprising forming layers of the screen on the basis of the tailings pond with the use of industrial waste slurry containing fine particles, UE�otnoenie layers, characterized in that the base of the tailings pond are made of clay or loam, compacted, poured on compacted layer of an aqueous suspension of fine dust scrubbing electrothermal production of silicon and/or silicon ferroalloys in the ratio l:s within 3÷10:1, incubated suspension until absorbed into the Foundation layer of sludge reservoir is placed above a layer of clay or loam and condense it.

2. A method according to claim 1, characterized in that the aqueous suspension is poured in the amount of 50-100 l/m2.



 

Same patents:

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: 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

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.

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

FIELD: construction.

SUBSTANCE: invention relates to the field of hydraulic engineering and may be used to establish anti-filtration devices on irrigation canals, water reservoirs and waste accumulating ponds. The anti-filtration coating with a bentonite cord includes a double-layer coating laid along the canal perimeter. The coating is formed from two geomembrane widths. Widths are connected to each other by longitudinal seams. A bentonite cord is placed into the cavity between layers of the coating. A protective soil layer is filled above the geomembrane. Operational reliability and durability of the coating is provided.

EFFECT: invention eliminates water losses for filtration during damages of both lower and upper layers.

2 dwg

FIELD: construction.

SUBSTANCE: invention refers to hydrotechnical construction and can be applied in waterproofing of irrigation channels. Watertight screen includes extended polymer panels laid overlapping on a prepared base and interconnected by 1.0-2.0 mm thick geomembrane band to form deformation fold. Before placement in channel beds, extended panels are made of flexible sheets out of polyolefin waste in the form of polymer sheets of 15-20 mm thickness, 1.5 m width and 15-20 m length. Flexible sheets are connected to form 10.0-11.5 m wide panels of the length equal to a channel perimeter. Geomembrane is made of polyolefin waste. Panels feature installation holes. Waterproofing element is attached to the slopes by metal anchors with sealing washers, hammered into ground through installation holes. Complete water tightness and hydraulic efficiency of channel bed is achieved. Due to significant thickness of waterproofing element, and deformation folds available, the waterproofing screen is highly reliable.

EFFECT: prevented water loss by penetration from irrigation channels, prevented swamping, salinisation and flooding of valuable agricultural lands, and thus improvement of meliorative and ecological situation in irrigated lands.

6 cl, 5 dwg

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and may be used for antifiltration protection of water reservoir canals. The multi-layer antifiltration coating includes waterproof and reinforcing layers. The waterproof layer is made by flexible sheets manufactured from polyethylene wastes, and the reinforcing later is a geonet from polyethylene wastes or geotextile from wastes of textile industry, Flexible sheets are thermally connected to components of the reinforcing layer by melting of sheet surface.

EFFECT: invention provides for high watertightness, durability, reliability in operation at collapsing and heaving soils of the base.

5 cl, 4 dwg

FIELD: agriculture.

SUBSTANCE: method comprises development and filling of the trench 1 with impervious material from geomembrane 2. Before lowering into the trench 1 of the geomembrane 2 the additional plate of geomembrane 4 is glued to it 3. The space between the geomembrane 2 and the additional plate 4 is filled with sorbing-filter material 5 to form a drainage system of rectangular shape. In the main 2 and the additional plate 4 of the geomembrane on opposite sides near the places of gluing 3 of the additional plate 4 the filter windows 6 are made. At the inlet to the drainage system from the side of groundwater dam 7 in the additional plate 4 of the geomembrane and in the main geomembrane 2, in the place of location of the filter windows 6, in the soil to a depth of the trench the receiving 8 and the outlet 9 niches are located, which are filled with coarse filter material 10.

EFFECT: improvement of efficiency of purification of contaminated groundwater flow and increase in the volume of its passing.

1 dwg

FIELD: construction.

SUBSTANCE: invention relates to the field of hydraulic engineering and may be used to eliminate filtration via a body of low-head dams of storage ponds, dams of river beds and canals. An anti-filtration membrane of low-head dams and dykes from soil materials includes a waterproof wall. The wall is assembled from boards of two types - A and B. Boards are made of polyolefine wastes. Boards have semi-cylindrical ledges and grooves. Boards of type A are equipped with a longitudinal cylindrical cavity and an inverse filter from geotextile. The inverse filter is arranged at sides of the membrane. It becomes possible to efficiently determine the position of a depression curve in the dam body.

EFFECT: increased operational reliability.

6 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: pit is dug out for burial of industrial wastes. Wastes are dewatered and mixed with heavy oil, heated to thermally oxidise obtained mix. Mix ply is laid on pit bottom and slopes to polymerise the mix of hardened damp-proof shield for pit to be filled with industrial wastes and to make a protective coating thereon. Then, boards of reusable framework are placed on pit bottom and filled with the mix of thermally oxidised soil and oil. Vertical mutually perpendicular hardened shields and independent vessels are created at the pit over its entire depth. Said vessels are filled with dewatered industrial wastes and protective coating reinforced with meshes is erected there above using said mix of thermally oxidised soil and oil to rest on pin slopes.

EFFECT: higher environmental safety.

1 dwg

FIELD: ecology.

SUBSTANCE: method consists in location at the bottom of a water channel serving as the groundwater inflow for water intake, of filter material with the layer of 1-1.5 m. The filter material consists of a mixture of zeolite-containing clay of local origin - Irlit 1, Irlit 7, Alanite - and barite. Barite is taken in an amount of 5-7% of the total amount of clay.

EFFECT: simplification of the method due to the use of local natural raw materials.

FIELD: agriculture.

SUBSTANCE: invention relates to the field of protection of groundwater and open water courses and is designed to intercept contaminated groundwater flows from the containment pond for production wastes, effluents of livestock farms, spills of oil and oil products from oil storage tanks, gas stations and others. The method comprises filling the main trench 1 with an impervious material 2 in the form of geomembrane with preformed windows 3, after which additionally perpendicular to the main trench 1 receiving beam trenches 4 are developed and filled with a sorbing-filter material 5. Then perpendicular to the main trench 1 additionally water drainage beam trenches 6 are dug and filled with the filter material 7. The receiving beam trench 4 at the inlet to the main trench 1 is equipped with a water receiving tank 8 and alsoa pump 9 for pumping from the upper layer of water 10 of floating contaminated soluble matters.

EFFECT: increased capture area by the beam water intakes of contaminated groundwater flow, as well as cleaning and outlet by the beam water intakes of a purified flow into the ground behind the curtain grouting.

3 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining industry, and namely to development of flooded mineral deposits, as well as it can be used at unwatering of foundations and in hydraulic engineering. In order to protect an open pit against underground water influx, the main horizontal drain wells 4 are constructed normally to open pit 2 side 1. At least two opposite lying additional side horizontal drain wells are constructed out of each main horizontal drain well 4. Out of points 5, 6, 7 on the main horizontal drain wells 4 there constructed to one side in the direction of adjacent wells 4 to the right are additional side horizontal drain wells 8, 9, 10. Out of the same points 5, 6, 7 on adjacent wells 4 there constructed to the left are additional side horizontal drain wells 11, 12, 13. All the additional side horizontal drain wells are constructed till their mutual intersection and formation of a closed drain circuit. All wells are constructed at the bottom of the drained water-bearing horizon.

EFFECT: providing increase of entrapment degree of breakthrough of underground water to open pit sides and reducing drilling volumes of the main horizontal drain wells owing to enlarging distance between them.

1 dwg, 1 ex

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering, in particular to the impervious geotextile coating of low-pressure earth dam. Dam coating comprises cellular structure made of polymer material. Cellular structure is attached on the cloth of waterproof geotextile material. Cellular structure has variable depth, which increases gradually from the crest to foot of the dam. Cells of structure are filled with soil.

EFFECT: reduction of water loss for seepage.

1 dwg

Channel lining // 2251606

FIELD: hydraulic engineering, particularly reinforced concrete lining for channels built in seismic areas in earth.

SUBSTANCE: channel lining includes reinforced concrete slope panels and bottom panels divided by longitudinal and transversal construction seams covered with band diaphragms. Longitudinal and transversal seams are covered with two rows of band diaphragms and reinforcing bars made of elastic metal are installed across the seams. The reinforcing bars are anchored into neighboring panels.

EFFECT: increased operational reliability of channel lining in seismic areas and increased air-tightness.

4 dwg

Up!