RU122393U1 - DRAINAGE GEOCOMPOSITE MATERIAL (DRAINAGE MAT) - Google Patents

Abstract

Drainage geocomposite material (drainage mat) containing the lower and upper permeable layers, as well as a geogrid reinforcing drainage layer located between them, characterized in that the lower and upper layers made of thermally bonded geotextiles are connected to the inner reinforcing geogrid layer when exposed to temperature under pressure and represent a single volumetric structure, the lower layer of which, if necessary, can be supplemented with waterproofing components, and the geogrid has a honeycomb structure formed by two layers of polymer strips mounted on top of each other on the edge.

Description

The utility model relates to the field of construction and can be used in the installation of wall drainage and protection against flooding of the buried parts of structures; laying in the base of pavement in order to drain the base of the pavement, organizing drainage from the surface of roads, as well as hardening the roadway; organization of the flow of surface water through the body of the road embankment in swampy and flooded areas; device interruption layer to protect the soil from moisture; installation of areal drainage to accelerate surface and groundwater, protect the territory from flooding in the event of a rise in groundwater.

Known stretching geogrid [1] of flat elastic material, mainly from a rolled polymer web, containing slotted cells of the same length, arranged in rows parallel to each other with offset adjacent rows relative to each other and uniformly in area. In the unstretched position, the cells are predominantly segmented and oriented across the web, and in the position stretched along the web they form a three-dimensional cellular structure. In the unstretched position, the cell length b ₀ = 10-60 cm, the distance between adjacent cells across the canvas b ₂ = (0.4-0.6) b ₀ , the distance between adjacent rows of cells along the canvas a ₀ = (0.15-0 , 35) b ₀ , the displacement of adjacent rows in the transverse direction b ₃ = (0.15-0.35) b ₀ , and in the position stretched along the canvas, the cell dimensions in the longitudinal and transverse directions are b = a = (0.5- 0.85) b ₀ , the angle of inclination of the edges of the cells in the longitudinal direction β = (30-60) °, the height of the geogrid h = 2a ₀ · sinβ = (0.3-0.7) · b ₀ sinβ.

The disadvantage of this technical solution is that the geogrid itself without the additional use of geotextile materials cannot prevent the mixing of materials of the upper and lower slope layers.

A known design for reinforcing slopes [2], including a flat product with parallel regularly located with overlapping slots along its length, the gaps between which are selected from the conditions for the formation of free space between curved jumpers from a flat product after the tensile force is applied to the flat product. The slots have an extension at their ends. The flat product is made in the form of a web of geosynthetic material. The free space between the lintels is filled with vegetable soil, or alternatively concrete.

The disadvantage of this design is that it requires considerable effort when it is drawn.

Known geomat [3] honeycomb structure made of flexible strips mounted on the ribs and interconnected by linear seams located in a checkerboard pattern. The strips are made of non-woven geotextiles, reinforced with sizing and stitched seams, located uniformly over the area of the strips and parallel to their base, while the distance between the seams and the stitch width is 2-5 mm, while the strips are joined together by one or more stitched seams with reinforcement edge zones. Geotextile strips are made of synthetic fibers and reinforced with sizing and rectilinear or zigzag stitched seams. Geotextile strips are made of natural fibers or a mixture of natural and synthetic fibers and are reinforced with sizing and rectilinear or zigzag stitched seams. Geotextile strips are made by the stitching method of bonding fibers by weaving “leotards” or “chains” and fitting. Geotextile strips are interconnected by means of a straight-line or zigzag-seam stitching with synthetic thread, the stitch width being 2-5 mm, and the edge zones reinforced 1-3 cm with triple stitching. In the extended state, its length is from 8 to 15 m, the width is from 1 to 15 m, the height is from 0.05 to 0.2 m, the cell width is from 0.2 to 1.0 m.

The disadvantage of a geomat is not ease of use.

Known multi-layer coating for strengthening and reclamation of bogged natural and / or industrial soils and / or mud deposits [4], containing laid on the soil, and / or mud deposit - the lower permeable layer of geotextiles, and / or biomat and biotextiles located on it the reinforcing layer of a metal mesh with a protective coating or a plastic lattice of flat section and the top layer of vegetable soil, with a thickness that provides the formation of an additional reinforcing layer consisting of grass roots, and / or and shrubs and / or trees. The coating may contain a ballast or drainage layer located under the top layer. As a metal mesh with a protective coating, a galvanized mesh with a zinc content of not more than 110 g / m ^{2 of} the wire coating surface is used, or a galvanized mesh with zinc content of not more than 260 g / m ^{2 of} the wire coating surface, and / or a mesh with a plastic wire sheath.

The invention relates to the field of construction and can be used to strengthen weak and swampy soils of both natural and industrial, industrial dumps and household landfills, as well as storage areas for irrigated, silty, industrial and household deposits.

The disadvantage of a multilayer coating for strengthening and reclamation of bogged natural and / or industrial soils and / or mud deposits is that the lower, upper and reinforcing layers of the multilayer coating are separate materials stacked on top of each other, which is not convenient during operation.

The purpose of the utility model is to improve drainage properties and ease of operation.

This goal is achieved in that the drainage geocomposite material (drainage mat) contains lower and upper permeable layers, as well as a reinforcing drainage layer from the geogrid located between them. The lower and upper layers, made of thermally bonded geotextiles, are connected to the inner reinforcing layer of the geogrid under temperature exposure under pressure and represent a single volumetric design. The bottom layer, if necessary, can be supplemented with waterproofing components. The honeycomb structure of the geogrid is formed by two layers of strips of polymer material mounted on top of each other on a rib.

Figure 1 shows the drainage geocomposite material (drainage mat).

Drainage geocomposite material (drainage mat) is a single volumetric structure consisting of an upper waterproof layer 1 and a lower layer 3, which can be waterproof or waterproof, between which there is a reinforcing drainage layer from a geogrid 2. The honeycomb structure of a geogrid 2 is formed by two layers of stripes 4 , 5 of polymeric material mounted on top of each other on a rib. The upper 1 and lower 3 layers of the geocomposite material (drainage mat) are made of thermally bonded geotextiles and are connected to the inner reinforcing layer of geogrid 2 under temperature exposure under pressure.

In production conditions, canvases of a geocomposite material (drainage mat), for example, when forming a road surface are rolled out on a planned work surface and fastened together by gas welding. Then the geocomposite material is filled with soil. During operation, moisture penetrates through the soil layers, is filtered by geotextiles thermally bonded with the geogrid and flows down along the edges of the geogrid. If the lower layer of the geocomposite material is waterproofing, then the influx of moisture is carried out only from above.

The proposed design of the drainage geocomposite material (drainage mat) is convenient in operation and due to its design features has higher drainage properties.

BIBLIOGRAPHY

1. Patent No. 2090702 RU, IPC E02D 17/20. Stretching geogrid / Aliver Yu.A., Repnikov A.N (RU). - No. 96104199/03; claimed 01.03.1996; publ. 09/20/1997, Bull. No. 26.

2. Patent No. 2121038 RU, IPC E02D 17/20. The construction of slope reinforcement / Abdullin I.B., Malashkin S.E., Koshchin A.D., Nedoseko I.V., Khakimov A.G. (RU). - No. 97110762/03; claimed 06/26/1997; publ. 10/27/1998, Bull. No. 30.

3. Pat. 2180030 RU, IPC E02D 17/20. Geomat / Gareev R.K., Shaidullin M.Z., Aliver Yu.A., Zimin M.V., Scherbina E.V. (RU). - No. 2001108424/03; claimed March 30, 2001; publ. 02/27/2002, Bull. No. 6.

4. Pat. 2188275 RU, IPC E02D 3/12, E01C 3/04, B09B 1/00. Multilayer coating for strengthening and reclamation of bogged natural and / or technogenic soils and / or silty sediments / Kalantarov O.K., Mitin V.A., Chesalov S.M. (RU). - No. 2001106903/03; claimed March 15, 2001; publ. 08/27/2002, Bull. Number 24.

Claims (1)

Drainage geocomposite material (drainage mat) containing the lower and upper permeable layers, as well as a reinforcing drainage layer made of geogrid between them, characterized in that the lower and upper layers made of thermally bonded geotextile are connected to the inner reinforcing layer of the geogrid when exposed to temperature under pressure and represent a single volumetric design, the lower layer of which, if necessary, can be supplemented with waterproofing components, and the geogrid has a honeycomb structure, o grafted with two layers of strips of polymer material mounted on top of each other on a rib.