High-strength planting slope protection geotextile with sandwich structure and preparation method of high-strength planting slope protection geotextile with sandwich structure

A high-strength, sandwich technology, applied in infrastructure engineering, excavation, non-woven fabrics, etc., can solve the problems of limited application of slope protection materials, etc., achieve convenient and fast paving construction, high fertility and water retention capacity, and realize mechanized production Effect

Inactive Publication Date: 2018-08-10
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a high-strength vegetation slope protection geotextile with a sandwich structure and its preparation method, which solves the problem of limited application of existing slope protection materials

Method used

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  • High-strength planting slope protection geotextile with sandwich structure and preparation method of high-strength planting slope protection geotextile with sandwich structure
  • High-strength planting slope protection geotextile with sandwich structure and preparation method of high-strength planting slope protection geotextile with sandwich structure
  • High-strength planting slope protection geotextile with sandwich structure and preparation method of high-strength planting slope protection geotextile with sandwich structure

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Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a high-strength vegetation slope protection geotextile with a sandwich structure, the geotextile includes two layers of short-fiber geotextiles 1, and a vegetation layer 2 sandwiched between two layers of short-fiber geotextiles, the short-fiber geotextile The layer and the vegetation layer are fixedly connected by acupuncture technology and form a whole, forming a sandwich structure.

[0029] The short fiber geotextile layer is made of viscose fiber through needle punching and prepunching. The cut length of viscose fiber is 35-75mm, and the fineness is 1.1-6.6dtex.

[0030] The viscose fiber is viscose cotton staple fiber. The cut length of viscose cotton staple fiber is 35-40mm, and the fineness is 1.1-2.8dtex.

[0031] The vegetation layer is natural plant fiber. The amount of natural plant fiber added is 300-1200g / m 2 . On the one hand, the vegetation layer can provide the necessary nutrients for plant growth, and on the other hand, ...

Embodiment 2

[0049] A high-strength vegetation slope protection geotextile with a sandwich structure, the geotextile includes two layers of short-fiber geotextiles, and a vegetation layer sandwiched between the two layers of short-fiber geotextiles, the short-fiber geotextile layer and the vegetation layer are made of The needling process securely connects and forms a whole, forming a sandwich structure.

[0050] The short fiber geotextile layer is made of viscose fiber through needle punching and prepunching. The cut length of viscose fiber is 35-75mm, and the fineness is 1.1-6.6dtex.

[0051] The viscose fiber is viscose cotton staple fiber. The cut length of viscose cotton staple fiber is 35-40mm, and the fineness is 1.1-2.8dtex.

[0052] The vegetation layer is natural plant fiber. The amount of natural plant fiber added is 300-1200g / m 2 . On the one hand, the vegetation layer can provide the necessary nutrients for plant growth, and on the other hand, it has a superior water rete...

Embodiment 3

[0070] A high-strength vegetation slope protection geotextile with a sandwich structure, the geotextile includes two layers of short-fiber geotextiles, and a vegetation layer sandwiched between the two layers of short-fiber geotextiles, the short-fiber geotextile layer and the vegetation layer are made of The needling process securely connects and forms a whole, forming a sandwich structure.

[0071] The short fiber geotextile layer is made of viscose fiber through needle punching and prepunching. The cut length of viscose fiber is 35-75mm, and the fineness is 1.1-6.6dtex.

[0072] The viscose fiber is viscose cotton staple fiber. The cut length of viscose cotton staple fiber is 35-40mm, and the fineness is 1.1-2.8dtex.

[0073] The vegetation layer is natural plant fiber. The amount of natural plant fiber added is 300-1200g / m 2 . On the one hand, the vegetation layer can provide the necessary nutrients for plant growth, and on the other hand, it has a superior water rete...

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Abstract

The invention provides a high-strength planting slope protection geotextile with a sandwich structure and a preparation method of the high-strength planting slope protection geotextile with the sandwich structure. The geotextile comprises two short fiber geotextile layers, and a planting layer sandwiched between the two short fiber geotextile layers, and the short fiber geotextile layers and the planting layer are fixedly connected by a needle punching process and formed into a whole to form a sandwich structure. The preparation method comprises the following steps: firstly, pre-punching a fiber web by needles into a short fiber geotextile with higher strength, and then fixedly connecting the short fiber geotextile layers with the planting layer by the needle punching process, so that theupper and lower short fiber geotextile layers and the planting layer between them run through to form a sandwich structure. The geotextile layers are pre-punched by adopting the needle punching process, thereby improving the tensile strength and the deformation resistance of a material; the geotextile is not easily pierced or broken during use, and is solid and durable; the planting layer in the invention has higher fertility and water retention capacity, and provides a good environment for plant growth.

Description

technical field [0001] The invention relates to an ecological geotextile, which belongs to the technical field of textiles, in particular to a high-strength vegetation slope protection geotextile with a sandwich structure and a preparation method thereof. Background technique [0002] In recent years, with the construction of infrastructure such as highways and high-speed railways in my country and the large-scale development of mines, a large number of exposed earth and rock slopes have been formed in these engineering constructions, resulting in vegetation damage and soil erosion, which has a great impact on the ecological environment. big impact. [0003] The traditional slope protection technology mainly uses hard materials such as cement and block stones for slope protection. Although it can reduce soil erosion, the construction period is long, the cost is high, and it is difficult to green the slope after the slope hardens. Although the emerging vegetation slope protec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4258D04H1/46D04H1/498D04H1/425E02D17/20
CPCD04H1/425D04H1/4258D04H1/46D04H1/498E02D17/202
Inventor 娄辉清闫新张晓峰李海伟周忠成邵丕健刘永昌陈增斌秦龙威王朔
Owner HENAN INST OF ENG
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