Composite geotextile for civil structure

A composite geotextile and civil engineering technology, which is applied in the direction of braids, textiles, papermaking, road construction reinforcements, etc., can solve the problem that it is difficult to meet high-standard road engineering requirements, affect the overall performance of composite geotextiles, and shorten the service life of the overlay and other problems, to achieve the effect of avoiding water and soil loss, enhancing filtration and barrier, and simple structure

Inactive Publication Date: 2006-10-04
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The appearance of reflective cracks in the thin-layer overlay is an inevitable phenomenon. The key problem is that once the reflective cracks appear, although the use of the surface layer is not greatly affected, water will leak from the cracks, which will accelerate the damage to the base layer and make the asphalt Silt appears on the surface layer, and wet and soft foundations appear, which will accelerate the cracking of cracks and greatly shorten the service life of the overlay
[0012] The currently used geotextiles are generally made of polyester fiber, nylon mesh or polyethylene mesh to form a composite geotextile. Due to its low tensile strength and high elongation, it is difficult to meet high-standard roads. engineering requirements
my country's patent, the patent number is: "ZL 92229852" and the name is "reinforced non-woven geotextile". It discloses a base cloth made of nylon mesh sandwiched between two layers of polyester fibers and entangled by needle punching. Reinforced non-woven geotextile, although this patent has played a positive role in reducing cost and weight, but because the material used has a large elong

Method used

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  • Composite geotextile for civil structure
  • Composite geotextile for civil structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1:

[0023] The grid composite geotextile in this embodiment includes a layer of singeing geotextile (1) and a layer of reinforcing grid (2). (2) A grid structure is formed on the surface, the warp tow is woven on the surface of the geotextile, and the weft tow is woven and fixed on the surface of the geotextile only at the intersection with the warp tow as a whole. The singeed geotextile (1) is made by treating one surface of the geotextile with a singeing process. The singeed geotextile (1) has a rough surface after being singed and is not easy to slide during construction, making the grid composite geotextile. The cloth is relatively flat during the paving process. The reinforcing grid (2) is made of nylon fiber filaments, and the reinforcing grid (2) is a grid structure composed of a group of warp threads (3) and a group of weft threads (4); the geotextile is made of polyester filament fibers. Non-woven.

[0024] During road construction, the roadbed is f...

Example Embodiment

[0025] Embodiment 2:

[0026]The grid composite geotextile in this embodiment includes a layer of singeing geotextile (1) and a layer of reinforcing grid (2). (2) A grid structure is formed on the surface, the warp tow is woven on the surface of the geotextile, and the weft tow is woven and fixed on the surface of the geotextile only at the intersection with the warp tow as a whole. The singeed geotextile (1) has a rough surface after being singed, and it is not easy to slide during the construction process, so that the grid composite geotextile is relatively flat during the paving process. The reinforced grid (2) is made of glass fiber filaments, and the reinforced grid (2) is a grid structure composed of four groups of warp threads (3) and four groups of weft threads (4); the geotextile is made of polyester filament fibers Non-woven.

[0027] During road construction, the roadbed is first compacted, the side of the singeed geotextile (1) in the grid composite geotextile is...

Example Embodiment

[0028] Embodiment three:

[0029] The grid composite geotextile in this embodiment includes a layer of singeing geotextile (1) and a layer of reinforcing grid (2). (2) A grid structure is formed on the surface, the warp tow is woven on the surface of the geotextile, and the weft tow is woven and fixed on the surface of the geotextile only at the intersection with the warp tow as a whole. The singeed geotextile (1) has a rough surface after being singed, and it is not easy to slide during the construction process, so that the grid composite geotextile is relatively flat during the paving process. The reinforced grid (2) is made of glass fiber filaments, and the reinforced grid (2) is a grid structure composed of two sets of warp threads (3) and two sets of weft threads (4); the geotextile is made of polyester filament fibers Non-woven.

[0030] During road construction, the roadbed is first compacted, the side of the singeed geotextile (1) in the grid composite geotextile is ...

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Abstract

The invention discloses a composite geotechnical fabric of civil structure, which comprises the following parts: one deck genapping geotechnical cloth, one deck reinforced grid, wherein the genapping geotechnical cloth, warp knitting fabric fibre group, weft knitting fibre group are twisted a whole body by longitude line and latitude line; the singeing geotechnical cloth is get by technological treatment on one surface of the geotechnical cloth; the surface of the singed to make the grid composite geotechnical cloth spreading more open and flat; the reinforced grid is produced by warp knitting fiber glass, nylon, polypropylene, vinylon, terylene, aramid fiber or carbon fiber filament, which is the grid structure consists of a plurality of longitude, a plurality of latitude line; the geotechnical cloth adopts terylene fibre, nylon, polyethylene or polyester fiber. The composite geotechnical fabric has high tensile strength and low elongation, which avoids soil erosion.

Description

technical field [0001] The invention relates to a geotechnical fabric which plays a reinforcing role in civil engineering, in particular to a composite geotechnical fabric in which grids and geotextiles are combined. Background technique [0002] In recent years, in order to meet the needs of road transportation, my country has vigorously developed cement concrete roads on roads with heavy traffic and large traffic volume. Due to the cement pavement and old asphalt concrete pavement built in the early 1980s, the design standard was relatively low, the slabs were relatively thin, and some road sections were damaged to varying degrees, which could no longer meet the needs of heavy traffic. [0003] With the development of road construction, the task of road reconstruction and repair will become heavier and heavier. The focus of road construction in many developed countries is gradually shifting from the design and construction of new roads to the ren...

Claims

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Application Information

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IPC IPC(8): E01C11/16D04C1/06
Inventor 赵欣平张坤何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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