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Composite geotextile and drainage reinforcing structure

A technology of composite geotextile and reinforcement structure, applied in the field of composite geotextile and drainage reinforcement structure, can solve the problems of low soil strength, fiber stripping, safety, etc., achieve high CBR bursting strength, low elongation at break, improve the use of effect of life

Pending Publication Date: 2020-07-10
TEN CATE IND ZHUHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the composite geotextile, the woven geotextile is in direct contact with the ground, and the fibers are easy to break and the woven geotextile and non-woven geotextile are easily peeled off.
Moreover, the existing composite geotextiles can only achieve drainage when the soil is saturated and there is a hydraulic gradient to drive water along the plane. When the water in the soil is saturated, the soil strength has dropped to the lowest level, and there are potential safety hazards

Method used

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  • Composite geotextile and drainage reinforcing structure
  • Composite geotextile and drainage reinforcing structure
  • Composite geotextile and drainage reinforcing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0047] see image 3 , the drainage reinforcement structure of this embodiment is applied to embankment reinforcement and lateral drainage on soft ground. The bottom drainage of the embankment and the construction platform layer are generally made of coarse sand or gravel, and the drainage reinforcement structure of this embodiment can also be made of natural drainage materials such as medium sand or clay with poor drainage performance.

[0048] The drainage reinforcement structure includes a soft soil base 31, a construction platform layer 32, an embankment filler layer 33, a third drainage reinforcement layer 34 and a plurality of drainage channels 35, and the third drainage reinforcement layer 34 is made of composite geotextile as above. The construction platform layer 32 is arranged on the soft soil base layer 31, the third drainage reinforcement layer 34 is horizontally arranged between the construction platform layer 32 and the soft soil base layer 31, and the end of the ...

Embodiment 3

[0051] see Figure 4 , The drainage reinforcement structure of this embodiment is applied to the reinforcement and lateral drainage of steep slopes and earth walls.

[0052] The drainage reinforcement structure includes undisturbed soil 41, backfill soil 42, fourth drainage reinforcement layer 43, two fifth drainage reinforcement layers 44, multiple reinforcement fabric layers 45, multiple soil bags 46 and multiple sixth drainage reinforcement layers 47 , the fourth drainage reinforcement layer 43, the fifth drainage reinforcement layer 44 and the sixth drainage reinforcement layer 47 are all made of the above-mentioned composite geotextile.

[0053] The undisturbed soil 41 comprises a steep slope and a ground layer. The steep slope is obliquely arranged on the ground layer. The steep slope is provided with a first inclined surface 412 on the side of the bottom surface layer. The ground layer is provided with a first plane 411. The first plane 411 and the first inclined surfac...

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Abstract

The invention provides a composite geotextile and a drainage reinforcing structure. The composite geotextile comprises an upper fabric layer, a middle fabric layer and a lower fabric layer which are sequentially arranged from top to bottom, the upper fabric layer is a water absorption and drainage geotextile, and the water absorption and drainage geotextile comprises first warp yarns and first weft yarns; wicking fibers are contained inside the first warp yarns and / or the first weft yarns, and a plurality of first through holes are formed between the first warp yarns and the first weft yarns;the middle fabric layer is a geotechnical filter screen, and a plurality of second through holes are formed in the geotechnical filter screen; the lower fabric layer is reinforced geotextile, a plurality of third through holes are formed in the reinforced geotextile, the hole diameters of the second through holes are larger than those of the first through holes and the third through holes respectively, and the first through holes, the second through holes and the third through holes communicate with each another. The drainage reinforcing structure comprises the composite geotextile. The composite geotextile and the drainage reinforcing structure have good soil water absorption and drainage capacity and long service life.

Description

technical field [0001] The invention relates to the technical field of geotechnical construction, in particular to a composite geotechnical fabric and a drainage reinforcement structure. Background technique [0002] Composite geotextiles, also known as composite geotextiles, are a member of geosynthetics. Composite geotextiles are often used in the construction of reinforced soil structures. Reinforced soil structures include reinforced soil seals covered on landfills, reinforced embankments on soft soils, reinforced steep slopes, reinforced foundation cushions for chemical storage tanks, reinforced roadbeds with high salt content, etc. [0003] Existing composite geotextiles, such as the patent with the notification number CN204136518U discloses a composite geotextile, comprising a first short-fiber geotextile layer and a second short-fiber geotextile layer, in the first short-fiber geotextile layer and the second short-fiber geotextile layer The organic woven geotextile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10B32B17/02B32B17/10B32B17/12B32B5/02B32B5/08B32B5/26B32B27/36B32B27/02B32B27/08B32B27/12B32B27/32B32B27/30B32B27/34B32B3/04B32B7/08B32B33/00
CPCB32B3/04B32B5/02B32B5/08B32B5/26B32B7/08B32B33/00B32B2250/20B32B2262/0223B32B2262/0253B32B2262/0261B32B2262/0276B32B2262/101B32B2262/14B32B2307/726E02D3/10E02D2300/0087E02D2300/009
Inventor 李坚灵农远腾林强余德荣褚景英
Owner TEN CATE IND ZHUHAI CO LTD
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