RU89431U1 - STRUCTURE FOR LOCALIZATION OF SOIL (OPTIONS) - Google Patents

Abstract

1. The structure for localization of soil, erected in a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and base, characterized in that the structure contains a surface a layer covering the pit on top, with a geomembrane placed below it and a geogrid above it, and a multilayer protective screen includes a geomembrane made of high-density polyethylene sheet material th density and mounted on the bedding layer geogrid disposed above the geomembrane and separated from it as a filler sand, and a protective layer in the form of a geotextile, geogrid placed on the carrier and returned to the pit bottom. ! 2. The structure for localization of soil, erected in a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and base, characterized in that the structure contains a tongue and groove the fence installed around the perimeter of the pit, and the multilayer protective screen includes a geomembrane made of sheet polymeric material based on high density polyethylene and installed on the bedding with oh geogrid disposed above the geomembrane and separated from it as a filler sand, and a protective layer in the form of a geotextile, geogrid placed on the carrier and returned to the ground trench, with sheet piling from the outside for adjustment fenced bulk layer, e.g., of

Description

The utility model relates to the field of construction for various purposes and can be used to localize soils during the construction of roads, during the construction of foundations for foundations, and in the isolation of industrial soils.

A known method of landfill in the dump, including the formation of a pit with the execution of the side walls at an angle to the base, placing a waterproof screen on the side walls and the base, RU No. 2136402 C1, B09B 1/00, 1999.09.10.

A known method of constructing a storage barn, including excavation, deboning and laying on the bottom and walls of the barn of a waterproofing screen made of film material with welds, RU No. 2272869 C2, E02D 31/00, 2006.03.27.

A device for protecting industrial sites from flooding, made in the form of a channel, the surface of which is coated with a multilayer substrate in the form of interconnected layers of non-woven synthetic material and a geogrid placed on top of the substrate, RU No. 72989 U1, E02D 17/20, 2008.05.10.

Known geocomposite layer for the subgrade of the road, geogrid and two layers of geotissue located on the upper and lower planes of the geogrid when placing an additional waterproof film, RU No. 2322543 C1, E01C 3/06, 2008.04.20.

Known geotechnical barrier containing geosynthetic barrier layers placed one relative to another with an interval, RU No. 2344238 C2, E02D 31/00, 2009.01.20.

A known method of reinforcing weak soils of foundations and slopes, which consists in laying on the ground a geogrid of a honeycomb structure with aggregate, RU No. 2228479 C1, E02D 17/20, 2004.05.10.

A multilayer coating for strengthening and reclamation of soils is known, containing a lower water-permeable layer made of geotextiles laid on the ground with a reinforcing layer made of metal mesh with a protective coating or a plastic lattice of flat cross-section, and an upper layer of soil, RU No. 2188275 C1, E01C 3 / 04, B09B 1/00, 2002.08.27.

A known method of strengthening the cones of overpasses, including compaction of the embankment, forming a cone, laying geotextile material from top to bottom on the surface of the cone, installing a geogrid when filling the geogrid with mineral material, RU No. 2182200 C1, E02D 17/20, 2002.05.10.

A device for strengthening the slope of an earth structure is known, comprising a geogrid fixed on a slope and located on a geotextile substrate, RU No. 49011 U1, E01C 5/00, E02D 17/20, 2005.05.04; RU No. 42547 U1, E02D 17/20, 2004.12.10.

Known storage for municipal solid waste, made in the form of a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and base, RU No. 21878 U1, B09B 1/00, 2002.02.27.

This technical solution was adopted as the "closest analogue" of this utility model.

However, it has disadvantages.

In the "closest analogue", a multilayer protective screen contains two layers of a film of polymer material separated by layers of coarse sand or fine gravel, or sandy soil, and the protective layer is made of sandy soil 0.45-0.60 meters thick, which requires a large amount mineral aggregate, has a functional limitation and does not provide the necessary strength properties under difficult operating conditions.

The present utility model is based on the solution of a problem that makes it possible to increase the strength and insulating properties of a structure, reduce the amount of mineral aggregate, and ensure the multifunctionality of the structure.

According to a utility model, this problem is solved due to the fact that the structure for localizing the soil, erected in a foundation pit with a base and side walls, contains a multilayer protective screen, including layers of polymer material, sand and a protective layer, and a bedding layer placed on the side walls and basis.

Option 1.

The structure contains a surface layer covering the pit on top, with a geomembrane placed below it and a geogrid at the top, and a multilayer protective screen includes a geomembrane made of sheet polymeric material based on high density polyethylene and installed on a bedding layer, a geogrid located above the geomembrane and separated from it is a filler in the form of sand, and a protective layer in the form of geotextiles placed on the geogrid and bearing soil returned to the pit.

Option 2

The structure contains a sheet pile fence installed along the perimeter of the pit, and the multilayer protective screen includes a geomembrane made of sheet polymeric material based on high density polyethylene and installed on the bedding layer, a geogrid located above the geomembrane and separated from it by a filler in the form of sand, and a protective layer in the form of geotextiles placed on the geogrid and bearing soil returned to the pit, while the sheet piling from the outer side is heightened with a bulk layer, on Example of coarse porous deposits.

Option 3

The structure contains a sheet piling installed around the perimeter of the pit, and a surface layer covering the pit from above, with gas pipes passing through it and placing geo-membranes at the bottom and geo-gratings at the top, and a multilayer protective screen includes a geo-membrane made of sheet polymeric material based on polyethylene high density and installed on the bedding layer, a geogrid located above the geomembrane and separated from it by a filler in the form of sand, and a protective layer in the form of geotextiles, times eschennogo geogrid on the carrier and returned to the ground trench, with sheet piling on the outside surface layer above fenced bulk layer, e.g., of coarse porous deposits.

The applicant has not identified sources containing information on technical solutions identical to this utility model, which allows us to conclude that it meets the criterion of "novelty."

The essence of the utility model is illustrated by drawings, which depict:

Figure 1 Construction, section schematically (Option 1).

Figure 2 Construction, sectional view schematically (Option 2).

Figure 3 Construction, section schematically (Option 3).

Options 1, 2, 3

The structure is being erected in a pit 1 with a base 2 and side walls 3. The structure contains a bedding layer 4 and a multilayer protective screen 5.

The multilayer protective screen 5 includes:

- geomembrane - 6,

- geogrid - 7,

- placeholder - 8,

- geotextiles - 9.

Option 1

The surface layer is 10,

- geomembrane (in layer 10) - 11,

- geogrid (in layer 10) - 12.

Option 2

Sheet Piling - 13,

- bulk layer - 14.

Option 3

Sheet Piling - 15,

- bulk layer - 16.

The surface layer is 17,

- geomembrane (in layer 17) - 18,

- geogrid (in layer 17) - 19,

- gas pipes - 20.

Options 1, 2, 3.

The structure is erected in foundation pit 1. The foundation pit 1 has a base 2 and side walls 3. The structure contains a bedding layer 4 and a multilayer protective screen 5. The bedding layer 4 and a multilayer protective screen 5 are placed on the side walls 3 and the base 2.

The multilayer protective screen 5 includes a geomembrane 6, a geogrid 7 with aggregate 8 in the form of sand and a protective layer in the form of geotextile 9.

The geomembrane 6 is made of sheet polymer material based on high density polyethylene and is installed on the bedding layer 4.

The geogrid 7 is located above the geomembrane 6 and is separated from it by a filler 8 in the form of sand.

The protective layer in the form of geotextiles 9 is placed on the geogrid 7 and carries the soil returned to the pit.

Option 1.

The structure contains a surface layer 10 covering the pit from above. In the surface layer 10, a geomembrane 6 is located at the bottom and a geogrid 7 at the top.

Option 2

The structure contains a sheet pile fence 13 installed along the perimeter of the pit 1. The sheet pile fence 13 is externally fenced in height by a bulk layer 14 of coarse porous deposits.

Option 3

The structure contains a surface layer 17 covering the pit from above. In the surface layer 17, a geomembrane 18 is located at the bottom and a geogrid 19 at the top.

The structure comprises a sheet pile fence 15 installed around the perimeter of the pit 1. The sheet pile fence 15 is externally above the surface layer 17 surrounded by a bulk layer 16 of coarse porous deposits.

The construction is erected as follows.

Option 1

The construction is being erected to strengthen sections of roads intersected by underground utilities (hot water supply, heating mains, etc.) and to divert water from water-carrying utilities along with their possible breakthrough.

In the equipped pit 1, under the communications, a multilayer protective shield 5 is constructed.

On the basis of 2 and side walls 3 of the pit 1, a cover layer 4 of fine-grained sand (at least 10 cm) is arranged to avoid damage to the elements of the multilayer protective screen 5 when laying on the ground, after which the geomembrane 6 is laid.

As a reinforcing device, a geogrid 7 is used, which is placed on the geomembrane 6 to ensure uniform precipitation during softening and softening of soils during physico-chemical and biochemical processes in the soil. The filler 8 of the geogrid 7 in the form of sand separates it, on the one hand, from the geomembrane 6. On the other hand, geotextile 9 is lined on the geogrid 7, which is a separation layer and protects the geomembrane 6 from damage.

After the construction of the multilayer protective screen 5, the soil removed from it is returned to the pit 1.

A surface layer 10 is arranged on top of the returned soil. A layer of sand is poured onto the returned soil layer 10 at the bottom of the surface layer 10, then a geomembrane 11 is laid, then a layer of sand is again poured, at the top of which a geogrid 12 is included in the pavement structure. Geogrid 12 allows you to redistribute static and dynamic loads on soils and minimize deformation processes.

Option 2

The construction is being erected as a foundation for the future foundation of the structure.

A groove 13 is installed around the perimeter of the pit 1 to isolate the basement from the effects of aggressive groundwater.

Along the perimeter of the sheet piling 13, a drainage system (not shown) is installed to drain groundwater with a slope towards the existing drainage network of river mouths and canals.

The tongue and groove 13 from the outside on the height of the enclose a bulk layer 14 of coarse porous deposits with access to the surface to organize the degassing of the submembrane space.

In the equipped pit 1 under the foundation, a multilayer protective shield 5 is built.

On the basis of 2 and side walls 3 of the pit 1, a cover layer 4 of fine-grained sand (at least 10 cm) is arranged to avoid damage to the elements of the multilayer protective screen 5 when laying on the ground, after which the geomembrane 6 is laid.

As a reinforcing device, a geogrid 7 is used, which is placed on the geomembrane 6 to ensure uniform precipitation during softening and softening of soils during physico-chemical and biochemical processes in the soil. The filler 8 of the geogrid 7 in the form of sand separates it, on the one hand, from the geomembrane 6. On the other hand, the geotextile 9 is lined on the geogrid 7, which protects the geomembrane 6 from damage and is the basis of the future foundation.

Option 3

The construction is being erected to localize the soil in case of its technogenic pollution. Man-made soils are diverse in composition and power. The composition of technogenic soils, including peat, construction waste, oil products, heavy metals and others, is unevenly distributed along strike and depth. Such soils are sources of pollutants entering groundwater. Localization of contaminated soil is carried out in the designated area by removing contaminated soil from the pit 1 and backfilling after installing a multilayer protective screen 5 in it.

A groove 15 is installed around the perimeter of the pit 1 to isolate the returned soil in the pit 1 from the effects of aggressive groundwater.

Along the perimeter of the sheet piling 15, a drainage system (not shown) is installed to drain groundwater with a slope towards the existing drainage network of river mouths and canals.

The sheet piling 15 is enclosed on the outside by a bulk layer 16 of coarse-grained porous deposits with an exit through the surface layer 17 to the day surface to organize degassing of the submembrane space.

In the equipped pit 1, a multi-layer protective shield 5 is built.

On the basis of 2 and side walls 3 of the pit 1, a cover layer 4 of fine-grained sand (at least 10 cm) is arranged to avoid damage to the elements of the multilayer protective screen 5 when laying on the ground, after which the geomembrane 6 is laid.

As a reinforcing device, a geogrid 7 is used, which is placed on the geomembrane 6 to ensure uniform precipitation during softening and softening of soils during physico-chemical and biochemical processes in the soil. The filler 8 of the geogrid 7 in the form of sand separates it, on the one hand, from the geomembrane 6. On the other hand, the geotextile 9, which is a separation layer, is lined on the geogrid 7, which protects the geomembrane 6 from damage.

After the construction of the multilayer protective screen 5, technogenic soil is returned to the pit 1, which isolates the returned soil with pollution from the environment.

A surface layer 17 is arranged on top of the returned soil 17. At the bottom of the surface layer 17, a geomembrane 18 is laid on the returned technogenic soil, having previously sanded a layer of sand on the technogenic layer (to protect the geomembrane from damage), then a geogrid 19 is installed and a sand layer is included in the structure of the road surface, which can be in the form of asphalt concrete, in the form of road slabs or ornamental plant soil. Geogrid 19 allows you to redistribute static and dynamic loads on soils and minimize deformation processes.

The soil localization facility according to options 1, 2, 3 contains a multilayer protective shield 5 made of geosynthetic materials used in the Russian Federation and the CIS countries.

The products of the Canadian company SOLMAX are used as geomembranes (the representative in Russia is Gidrokor LLC, St. Petersburg).

As geogrids use the products of the British company "Tensar" (company representative in Russia - LLC "Massar")

As a geotextile, a geomembrane waterproofing polymer roll polymer TU 5774-002-39504194-97 is used.

Constructed facilities allow:

- to increase the strength and insulating properties of the structure, due to the installation of a multilayer protective screen made of geosynthetic materials,

- reduce the amount of mineral aggregate, due to the implementation of the protective layer of geotextiles and the use of geomembranes and geogrids,

- to ensure the multifunctionality of the structure, due to the possibility of the construction according to options 1, 2 and 3.

The proposed structure contains a multilayer protective shield made of geosynthetic materials (geomembrane, geogrid, geotextile), which are widely used, have the best technical and technological characteristics, and devices for strengthening soil under foundations and road surfaces, as well as structural elements for soil insulation in case of industrial pollution, widely used in the construction of buildings, arrangement of stressed sections of roads, isolation of industrial soils, I confirm the feasibility of using the proposed technical solution and determine, according to the applicant, compliance with his criterion of "industrial applicability".

Claims (3)

1. The structure for localization of soil, erected in a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and base, characterized in that the structure contains a surface a layer covering the pit on top, with a geomembrane placed below it and a geogrid above it, and a multilayer protective screen includes a geomembrane made of high-density polyethylene sheet material th density and mounted on the bedding layer geogrid disposed above the geomembrane and separated from it as a filler sand, and a protective layer in the form of a geotextile, geogrid placed on the carrier and returned to the pit bottom. 2. The structure for localization of soil, erected in a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and base, characterized in that the structure contains a tongue and groove the fence installed around the perimeter of the pit, and the multilayer protective screen includes a geomembrane made of sheet polymeric material based on high density polyethylene and installed on the bedding with oh, a geogrid located above the geomembrane and separated from it by a filler in the form of sand and a protective layer in the form of a geotextile placed on the geogrid and bearing soil returned to the pit, while the sheet piling is fenced from the outside by a bulk layer, for example, of large-fragment porous deposits. 3. The structure for localization of soil, erected in a pit with a base and side walls, containing a multilayer protective screen, including layers of polymeric material, sand and a protective layer, and a litter layer placed on the side walls and the base, characterized in that the structure contains a tongue and groove the fence installed around the perimeter of the pit, and the surface layer covering the pit on top, with the passage of gas pipes through it and with a geomembrane below and above the geogrid, and a multilayer protective the screen includes a geomembrane made of sheet polymeric material based on high density polyethylene and installed on the bedding layer, a geogrid located above the geomembrane and separated from it by a filler in the form of sand, and a protective layer in the form of a geotextile placed on the geogrid and carrying soil returned to the foundation pit while the tongue and groove on the outside above the surface layer is fenced with a bulk layer, for example, of coarse porous deposits.