Method and device to strengthen soil in area that requires strengthening

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

 

The present invention relates to a method of enhancing the soil in the area, which needs to be strengthened, which compactible agent is supplied from the boot capacity of the soil means for mixing, located on the feeder compactible agent, the feeder compactible agent is located in connection with the transfer means, and means for mixing compactible agent located on the feeder compactible agent, move gear means for choosing at any point in the area, which needs to be strengthened, in the vertical direction, horizontal direction and/or perpendicular or essentially perpendicular direction to the plane, passing through the mentioned vertical direction and the horizontal direction.

The present invention additionally relates to a device for enhancing the soil in the area, which needs to be strengthened, and the device includes a feeder compactible agent, in which is included means for mixing compactible agent, and boot capacity, which can be served compactible agent in the soil means for mixing, transfer means located in connection with a device for supplying a compactible agent, in which the means for smesi is of compactible agent, installed on the feeder compactible agent may choose to move to any point in the area, which needs to be strengthened, in the vertical direction, horizontal direction and/or perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction and the horizontal direction.

Previously known devices for strengthening soil, which contains swept the feeder compactible agent. On its one end is located a means for mixing a compactible agent, known on the merits. The other end of the boom is usually connected with quite easily displaced by an arrow, which moves the bucket or similar heavy vehicle such as a tractor or excavator. Easy enough to deliver the excavator, and, therefore, the feeder compactible agent in the area that you want to strengthen or near the ground, which must be processed differently. A device of this type disclosed in the patent publication US 4,652,180.

In this context, the strengthening of the soil refers, in particular, the following processes are performed in relation to soil: preparation of base plates or road base by mixing additives, such as cement and reagents required for utverzhdeni and stabilization of the mixed mass, in the soil, stabilization, where additives interfere in infected soil for hardening of the soil and blocking of radioactive particles in the soil, stabilized in this way.

The disadvantage of this type of device is that the range of the means for mixing connected with the excavator or similar, limited and largely defined by the reach of the excavator. So, for example, stabilization, or other work with the soil can be carried out on the supporting base, located near the area, which will strengthen, and that is the Foundation bears the weight of the excavator. Thus, stabilization of large areas at a time, which means that we can be the break point in the soil, which is necessary to stabilize, which may reduce the durability of stabilization. Break points usually appear in the stabilizing zone between two adjacent points, stable at different times, resulting in a particularly break point on the vertical level can be established between them.

Another disadvantage of the previously known devices is that the strengthening of the soil, such as stabilization, may remain unfinished. In other words, some areas may remain unstabilized, because when the means for mixing is controlled using excavat the RA, part of the area may remain unprocessed by the operator. To this end, the feeder compactible agent (for example, the stabilization device) currently equipped tool positioning, such as GPS device, which determines the position, on the basis of which the operator of the feeder compactible agent will pass through the area stabilization using manual control. It requires great experience and versatile knowledge of the operator to ensure that the consolidation was fully effective.

The present invention is a method and device by which the above disadvantages can be eliminated or essentially reduced.

To achieve the aforementioned objectives of the present invention a method in accordance with the present invention differs in that the supporting bridge included in the transfer means, positioned to pass through an area that should be strengthened, and in connection with the supporting bridge are the first gear elements for moving the means for mixing compactible agent in the vertical direction and/or horizontal direction, and transmission means are the second gear elements, and a support axle, and means for supplying a compactible agent with what edstam for mixing move the second gear elements in a perpendicular or essentially, the vertical direction to the plane passing through the mentioned vertical direction and the horizontal direction, providing both ends of the bridge bearing the second gear means for maintaining the abutment of the bridge on the material support and/or the Foundation soil, resulting in a distance between the second gear means is adjusted to match the width of the area that needs to be strengthened in the longitudinal direction of the support bridge.

In addition, to achieve the aforementioned objectives of the present invention a device for the application of the method in accordance with the present invention differs in that the transmission means includes a support bridge, which is located to pass through the area, which needs to be strengthened, and the first gear items in connection with the supporting axle for moving the means for mixing compactible agent in the vertical direction and/or horizontal direction, and second gear members arranged in connection with a support axle for moving the abutment of the bridge, as well as devices for mixing compactible agent and means for mixing in a perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction and the horizon is the emotional direction, and both ends of the bridge bearing is equipped with the second gear means for maintaining the abutment of the bridge on the material support and/or the Foundation soil, resulting in a distance between the second gear means is adjusted to match the width of the area that needs to be strengthened in the longitudinal direction of the support bridge.

Using the method and device in accordance with the present invention achieved the advantage over the prior art in that the means for mixing can be delivered in a simple way at each point of the area that needs to be strengthened. The implementation of the method and the device does not require any particular experience or special skills of the user, since the control is entirely within the principal coordinate system, in this case position, means for mixing a compactible agent always known. Consequently, also known exactly which point in the area, which needs to be strengthened, has already been fortified, and which has not been strengthened. In addition, the transmitting means included in the method and apparatus, in accordance with the present invention, makes possible the so-called layer-by-layer reinforcement, where the entire area that you want to strengthen, can be stabilized in the vertical direction one is low at one time. Thus, the vertical break points are excluded.

Preferred embodiments of the present invention are disclosed in dependent claims.

The present invention is described in more detail below with reference to the accompanying drawings, on which:

Fig.1 shows the transmission means in accordance with the present invention to move the device stability in the area that you want to stabilize, and

Fig.2 shows an alternative device that uses the method in accordance with the present invention, which differs from Fig.1 only in that the supporting bridge 2 is not supported on the basis of one end.

Fig.1 thus shows a device for the application of the method. In this embodiment, the device includes a stabilization device located in the connection area 10 stabilization (the area that needs to be strengthened), that is indicated by the reference number 4, and the transmission means of the device 4 stabilization denoted by reference number 1.

The stabilizing zone denoted by the reference position 10. In this paper, the stabilization zone 10 is defined by a dense ground 11 and 12 and front areas of heavy soil, which is not shown in this document, and rear, which can also be dense soil. Areas that need stabilizirovat, can also be located next to each other, such as 10, 10b, and they can be separated from each other or in a natural way due to more solid or dense soil or artificially at the expense of material 11 support brought to the site or received on it, for example, by cast in place concrete slabs or concrete delivered to the site.

Stabilizing agent (compactible agent) preferably is supplied from the boot capacity 9b, brought in the vicinity of the transfer means 1 through the pipe 8 drawer tool 7 for mixing a stabilizing agent.

The transfer means shown in Fig.1, described in more detail below.

The transfer means preferably includes a support axle 2 through zone 10 stabilization, the first transfer elements 3, is arranged to move in conjunction with the supporting bridge, and the second transmission elements 5, in which the supporting bridge 2 may in turn be moved. The supporting bridge 2 is preferably supported by means of second transmission elements 5 on the bottom 12 of the base and in the manner described above, the material 11 bearing formed between the two zones 10 and 10a stabilization.

The second transfer elements 5 are located in the lower part of the supporting bridge 2, and in this document they R sporogony on both end parts of the supporting bridge 2, in this case, one at each end. In addition, the supporting bridge 2 preferably consists of modules 2a, which can be connected in the longitudinal direction in the form continuations of each other. Thus, the length of the supporting bridge 2 and A distance between the second transmission elements 5 can be adjusted to match the longitudinal width of the zone 10 of the stabilization and support of the bridge 2. Modules 2a also easy to move to the site for Assembly.

It should be noted that the second gear elements 5 are preferably configured to move relative to the supporting bridge 2, for example, by means of guides (not shown) located in the lower part of the supporting bridge 2. In this case, can be used in the device of Fig.2, in which the supporting bridge 2 relies on one end by means of two transmission elements 5 on the bottom 11 of the base, causing the other end of the bearing axle 2, which contains the tool 4 stabilization and gear means 3, is freely over an area of 10 stabilization. The supported end of the supporting bridge 2 can be fitted with a counterweight (not shown), such as is known from crane arrows, or it may be supported on the rail, fixed on the ground.

The supporting bridge 2 can usually be made with a length of about 20-40 m, but depending on the design and use of op is REGO bridge 2 length may differ from the length and compose, for example, 15 m or 50-60 m Second transmission elements 5 are preferably transfer carts that move on wheels, rollers and/or guides.

In connection with the supporting bridge 2, the first transfer elements 3 are arranged to move the device 4 stabilization, and thus also the means 7 for mixing a stabilizing agent in the vertical direction and/or horizontal direction (the horizontal direction refers in this document to the direction of the plane defined by the longitudinal direction of the bridge bearing, which may slightly deviate from the horizontal direction).

The second gear elements contain the transfer truck 5. The transfer truck 5 is arranged to move along the supporting bridge 2 through zone 10 stabilization (this direction of movement is indicated bidirectional arrow x in the drawing). In addition, this transfer truck 5 is preferably made so that they can move on wheels, rollers and/or guides 6.

The stabilization device 4 is in connection with the transfer truck 5, related to the second gear elements. The stabilization device 4 includes an elongated body 4a which is arranged to move in contact with the first gear truck is th 3 in the vertical direction, for example, on rails. This direction is indicated in the drawing bidirectional arrow y. Thus, the means 7 for mixing a stabilizing agent is arranged to move by means of the first transfer element 3 in the above x and y directions (horizontally and vertically), and by means of second transmission elements 5 in a perpendicular or essentially perpendicular direction to the plane passing through the said directions x and y (which occurs in the perpendicular or essentially perpendicular to the z-direction to the plane of the paper). The means 7 for mixing can be moved separately or simultaneously in each of the above areas. However, it is preferable that the horizontal direction of movement was the same as the direction of movement of the supporting bridge 2, resulting in a horizontal direction of movement can be selected to be essentially the same in different positions of the supporting bridge 2. The length B of the housing 4a of the device 4 stabilization was chosen so that the tool 7 for mixing on the lower end of the housing 4a can be used at a given depth relative to the surface of the earth. The length B of the casing is usually 2-12 meters, which is also essentially corresponds to the range of the aimed NR is h, means for mixing at depth relative to ground level.

The stabilizing agent is supplied from the boot capacity 9b located on a feed carriage 9, which is preferably located on the upper part of the moving truck, such as the frame of the rink or trailer truck 9a or the like. Flow is known, essentially, a way of using compressed air generated by the compressor on a feed carriage 9. Tube 8 feeder is preferably through a portion of its longitudinal length in connection with the transfer tool 1, in this case in connection with the supporting bridge 2, is included in the transfer tool 1.

One advantage of the method and device of the present invention is that the means for mixing freely for processing material discharged by the transfer tool 1 at any point in zone 10 stabilization, and the treated area is not dependent on the progress of the processing, such as stabilization, from the edge zone 10, as it was before. This feature of the invention can be applied, for example by stabilizing zone 10 by means of the so-called layer-by-layer method, in which the stabilization of the stabilizing zone can be layers, one layer at a time, resulting in no formation of vertical break points. On the drawing the x these layers indicated by the relative elevations a, b, c and d.

Using the present invention are also achieved robust stabilization of vertical supports. When stabilization of the vertical support area, which needs to be strengthened, is a group of zones that need to be strengthened, with the specified location, and each of them requires only vertical movement, but between which required moving with accurate dimensions in the horizontal coordinate system. If necessary, means for mixing can be modified to ensure stabilization of the vertical supports.

The system can be automated to provide automatic operation of the equipment. For example, mirrors are mounted on both ends of the axle 2, and the control is made known programmable logic controller that receives data management using range and laser by use of the mirrors.

The present invention is not limited to the described variants of the implementation and can be applied in many ways within the scope of protection defined in the attached claims. Although the method and apparatus have been used for soil stabilization, the present invention is not limited to this and refers mainly to strengthen areas that need to be strengthened.

1. Ways which strengthen the soil in the zone (10), you want to strengthen, in which compactible agent is supplied from the boot capacity (9b) in the soil means (7) for mixing, located on the device (4) for filing a compactible agent, and a device (4) for filing a compactible agent is located in connection with the transfer tool (1), and means (7) for mixing compactible agent located on the device (4) for filing a compactible agent, move the transfer means (1) choose at any point in the zone (10), which need to be strengthened, in the vertical direction (y), horizontal direction (x) and/or perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction and the horizontal direction, characterized in that the supporting axle (2) included in the transmission means (1), is located to pass through the zone (10), which must be strengthened, and in connection with the supporting bridge the first transfer elements (3) arranged to move the means (7) for mixing compactible agent in the vertical direction (y) and/or horizontal direction (x) and transmission means (1) are the second gear (5), and the supporting axle (2) and a device (4) for filing a compactible agent with a means (7) for mixing move the second paradatec the diversified elements (5) in the perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction (y) and horizontal direction (x), and providing both ends of the bridge bearing (2) second transfer means (5) for maintaining the abutment of the bridge on the material (11) support and/or soil (12) of the Foundation, resulting in a distance (A) between the second transfer means (5) is adjusted to match the width of the zone (10), which must be strengthened in the longitudinal direction of the support axle (2).

2. The method according to p. 1, characterized in that the horizontal (x) displacement is the same as the longitudinal direction of the bridge bearing (2), and horizontal (x) displacement remains essentially the same in different positions of the support axle (2).

3. The method according to p. 1 or 2, characterized in that the first and/or second transmission elements (3, 5) contain a transfer car or transfer carts, moving on wheels, rollers and/or other guides (6).

4. The method according to p. 1, characterized in that between the boot capacity (9b) and means (7) for mixing place the elongated tube (8) feeder compactible agent, which is in connection with the transfer tool (1) through a portion of its longitudinal length.

5. Device for enhancing the soil in the area (10) that is necessary is for the community to strengthen, contains the device (4) for filing a compactible agent, which has means (7) for mixing compactible agent, and the boot capacity (9b), which serves compactible agent in the soil means (7) for mixing, transfer agent (1) located in the connection device (4) for filing a compactible agent, by which means (7) for mixing compactible agent installed on the device (4) for filing a compactible agent, at the option of move to any point in the zone (10), you want to strengthen, in the vertical direction (y), horizontal direction (x) and/or perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction (y) and horizontal direction (x),characterized in thatgear means (1) includes a support bridge (2), which is located to pass through the area (10), which must be strengthened, and the first transfer elements (3) located in connection with the supporting axle (2), moving means (7) for mixing compactible agent in the vertical direction (y) and/or horizontal direction (x), and second gear elements (5) arranged in connection with the supporting axle (2) to move the support bridge (2), and the device (4) for filing TP is the existing agent and means (7) for mixing in a perpendicular or essentially perpendicular direction to the plane passing through the mentioned vertical direction (y) and horizontal direction (x), and both ends of the bridge bearing (2) is equipped with a second transfer means (5) for maintaining the abutment of the bridge on the material (11) support and/or soil (12) of the Foundation, resulting in a distance (A) between the second transfer means (5) is adjusted to match the width of the zone (10), which must be strengthened in the longitudinal direction of the support axle (2).

6. The device under item 5, characterized in that the horizontal direction (x) of movement established by the first transmission members (3) to be the same as the longitudinal direction of the bridge bearing (2), and the horizontal direction (x) move set to stay the same in different positions of the support axle (2).

7. The device under item 5 or 6, characterized in that the first and/or second transmission elements (3, 5) contain a transfer car or transfer carts, moving on wheels, rollers and/or other guides (6).

8. The device under item 5, characterized in that between the boot capacity (9b) and means (7) for mixing is elongated pipe (8) feeder compactible agent, which is in connection with the transfer tool (1) through the part p is dolinoy length.

9. The device under item 5, characterized in that the boot capacity (9b) is located on a separate movable carriage (9) with means for increasing the air pressure to supply compactible agent by means of compressed air.



 

Same patents:

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.

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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.

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FIELD: agriculture.

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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.

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2 cl, 4 ex, 5 tbl

FIELD: construction.

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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.

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FIELD: construction.

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EFFECT: higher intensification and efficiency of soil strengthening under an existing residential building.

5 cl, 5 dwg

FIELD: construction.

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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

FIELD: road construction.

SUBSTANCE: device has towed device with platform, connected to moving gear, tank for reinforcing liquid, force pipes with bars with apertures in lower portion. Bars are made of conical shape with screw blades, mounted on a platform made in form of slides, and radiuses of bars effect overlap. In back portion of platform a screw is mounted. Tank for reinforcing liquid is placed in front portion of platform and by gear pump is connected to distributing comb, each force pipe, which through locking armature is connected to appropriate bar. Bars in amount no less than three are kinematically connected to each other, and to shaft for drawing power from moving gear, to screw and to gear pump for feeding reinforcing liquid.

EFFECT: higher efficiency.

4 dwg

Heated pile // 2250302

FIELD: heat engineering constructions.

SUBSTANCE: invention can be used as supports of different construction on permafrost. Proposed heated pile has reinforced concrete or metal shaft with inner or outer heated pipe in form of ribbed evaporator and condensers provided with metal strip ribbing arranged over ground surface with inclination to vertical part of shaft. Novelty is that heated pile is made T-shaped, and heated pipe in form of ribbed evaporator is made symmetrically double relative to axis of shaft with connection of some ends or its evaporators, other ends being connected with condensers. Evaporator ribbing is made in form of upward convex ring surfaces with central passes secured on inner surfaces of walls of heated pipe evaporators and uniformly distributed in height, and metal strip ribbing of condensers is element of horizontal part of T-shaped heated pile.

EFFECT: improved efficiency of heated pile, facilitated replacement of pile in case of failure.

2 cl, 4 dwg

FIELD: protection of ground and underground water pollution with toxic chemical substances, particularly forming antifiltering screens around waste disposal areas, dumps, for producing water reservoirs, building vessel coatings, mud reservoirs and store facilities for oil products and building materials.

SUBSTANCE: method involves forming water-proofing mixture including polyethylene waste; laying thereof on store facility base and heat treating the mixture under temperature of mixture or upper store facility layer melting. The mixture includes waste polyethylene in amount of 70-99% and polypropylene in amount of 1-30%.

EFFECT: improved ecological safety and manufacturability, reduced cost for antifiltering screen forming, increased strength, reliability and extended trouble-free service life.

FIELD: building, particularly for reinforcing foundations and cast-in-place piles forming.

SUBSTANCE: device comprises percussion assembly including pneumatic drift and case surrounding thereof, as well as pipeline with pump. Case is rigidly secured to percussion assembly. Case comprises orifice made in front part thereof and adapted for receiving plug. Defined between the plug and the front part is cavity having cross-sectional area equal or more than that of pipeline located between percussion assembly and the case. Case has members for forming holes in ground located along longitudinal case axis and extending in radial direction thereof. The members have low rigidity and may be bent in radial direction. The members are provided with grooves formed in bending line thereof and rest brought into contact with case in extreme position.

EFFECT: increased efficiency.

7 cl, 7 dwg

FIELD: building, particularly for reinforcing soft and sagging ground at deep locations during building foundation construction and reconstruction, for protection of sliding natural slopes, as well as artificial dam, pit and trench slopes.

SUBSTANCE: method involves forming cylindrical cavity from ground surface; reinforcing cylindrical cavity walls by means of soil pipe and injecting hardening mix by pumping thereof into ground through injector. In the case of consolidating ground having high thickness cylindrical cavity is formed and reinforced with the use of soil pipe by vibratory driving thereof in ground. Soil pipe has auxiliary tube arranged coaxial to soil pipe and having outer diameter determined from a given relation. When soil pipe reaches upper boundary of soft ground layer to be consolidated the auxiliary tube is removed from soil pipe. Injector is deepened for the full soft ground layer thickness through the soil pipe and hardening mix is intermittently fed through the injector. After each hardening mix feeding operation injector is lifted for height corresponding to next gap to be filled with the mix. All injection operations in one consolidation point are performed during relaxation of ground compacted by soil pipe and injector driven in ground.

EFFECT: increased capacity, reduced time and labor inputs, improved technological effectiveness.

3 cl, 4 dwg, 2 ex

FIELD: building, particularly to consolidate building or building structure foundation base.

SUBSTANCE: method involves driving injectors in ground; supplying high-pressure grout through ejectors; recording and measuring mortar pressure and forming grout body. Grout is injected simultaneously through at least three injectors installed along straight line and spaced equal distances one from another. The distances are equal to 5-10 injector diameters. Vertical grout body orientation is provided by driving injectors up to given mark reaching with following partial lifting thereof for height equal to 10-20 injector diameters and with their fixation at predetermined level before start of grout ejection process.

EFFECT: increased efficiency of ground base consolidation for ground of all types due to performing ground compaction along with forming vertical grout body of predetermined shape.

4 dwg, 2 ex

FIELD: building, particularly to consolidate building or building structure foundation base.

SUBSTANCE: method involves driving injectors in ground; supplying high-pressure grout through ejectors; recording and measuring mortar pressure and forming grout body. Grout is injected simultaneously through three injectors installed in apexes of imaginary equilateral triangle with side dimensions equal to 5-10 injector diameters. Grout body forming is performed by driving and following lifting injectors for height equal to 1-3 injector diameters before start of grout supply to ejectors.

EFFECT: reduced labor inputs and increased efficiency of ground base consolidation due to providing of predetermined grout body shape in horizontal grout breaking plane.

3 dwg, 1 ex

FIELD: building, particularly technology and equipment for structurally unstable ground, for instance for industrial and civil building.

SUBSTANCE: method involves drilling well; forming longitudinal stress concentrator on wall thereof, locking upper well part along with injection zone separation; introducing binder under pressure in ground and forming plane of fracture in ground. Longitudinal concentrator is created by advancing, impressing and subsequent rolling of sliding punch-type rotary lentil-shaped disk within injection zone. The disc is connected with retainer through stop member. Upper well part is closed by filling gap between well wall and binder introduction means with quick-hardening material. Binder introduction means is made as perforated tube formed of elastic material and having diameter lesser than well diameter. Stress concentrator forming means has tube, head and cutter arranged in groove of the head. The cutter is made as sliding punch-type rotary lentil-shaped disk and connected to retainer by stop member including clamp and fork.

EFFECT: increased efficiency.

2 cl, 6 dwg, 1 ex, 1 tbl

FIELD: building, particularly to reconstruct underground structures and reinforce foundations and engineering services in confined space.

SUBSTANCE: method involves reinforcing foundation in vicinity of existent structures; building vertical tube with the use of well rings; excavating ground with the use of grab; breaking tunnel liner and driving tunnel. Method of foundation reinforcement near existent structures involves injecting quick-setting cement mix through perforated pipes installed in wells drilled through support foundation part and ground; drilling guiding wells beyond vertical tube below upper tunnel level and ground water level; providing guiding wells with casing pipes; injecting grouting mortar in ground through casing pipes up to grouting mortar appearance at well head; installing well rings having perforation orifices along ring perimeters and installing injectors in above orifices; additionally reinforcing contour part of vertical tube by supplying grouting mortar through orifices in well rings; breaking tunnel link section after well ring laying onto upper liner plate of deep tunnel by cutting orifices having necessary dimensions; removing tunnel link section and seating well ring on rock base; concreting well ring; forming two orifices in well ring before tunnel driving arranged in direction of tunnel reconstruction; driving the tunnel and installing support members.

EFFECT: extended field of usage, reliability and safety of operations.

4 dwg

FIELD: building, particularly to form base member in ground.

SUBSTANCE: method involves introducing excavation device in ground zone to loose the ground; mixing the loosened ground with liquid to obtain suspension, which hardens in the ground zone; before suspension hardening the suspension is drawn-off from the first ground zone area located above the second ground zone area; supplying at least part of suspension drawn-off from the first area back into the second ground zone area. Device for base member production comprises excavation rig adapted to loosen ground in ground area; supplying means to supply liquid to loosened ground and mixing means to mix loosened ground with liquid to obtain hardening suspension. The device is provided with outlet device to draw-off the suspension from the first ground zone area and supply device to repeatedly supply at least part of suspension drawn-off from the first area to the second ground zone area.

EFFECT: increased quality of base and foundation member production.

9 cl, 1 dwg

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