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Material on tunnel drainage layer

A technology for tunnel drainage and layer materials, which is applied in drainage, mining equipment, earth-moving drilling, etc., can solve the problems of easy rupture of non-woven fabrics, low construction efficiency, and high labor intensity of workers, so as to reduce labor intensity of workers and improve The effect of construction efficiency

Inactive Publication Date: 2011-05-18
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: the non-woven fabric is hung on the concrete layer manually, the construction efficiency is low, and the labor intensity of the workers is relatively high; rupture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A material for tunnel drainage layer. 50 parts of rubber particles with a diameter of 1.0mm; 50 parts of rubber particles with a diameter of 100 mesh; 20 parts of mineral wool fiber; 50 parts of VAE emulsion are prepared according to the weight parts, all of which are poured into the same container. Mix and stir evenly.

Embodiment 2

[0014] A material for tunnel drainage layer, prepared with 75 parts of rubber particles with a diameter of 1.5mm; 25 parts of rubber particles with a diameter of 200 mesh; 20 parts of mineral wool fibers; 80 parts of VAE emulsion, all of which are poured into the same container and mixed thoroughly. Got.

Embodiment 3

[0016] A material for tunnel drainage layer. 70 parts of rubber particles with a diameter of 1.2mm; 30 parts of rubber particles with a diameter of 120 mesh; 50 parts of mineral wool fiber; 55 parts of VAE emulsion are all poured into the same container and mixed thoroughly. Got.

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Abstract

The invention discloses a material on a tunnel drainage layer, which is characterized by comprising the raw materials with the following parts by weight: 100 parts of rubber particles, 20-50 parts of mineral wool fibres and 50-80 parts of VAE emulsion. The material adopts water conductivity of inorganic fibers, elasticity of waste vulcanized rubbers and cohesiveness of the VAE emulsion, and on the basis of better drainage property, has the leveling function to fill and level up upper concave pits and has the elastic function to be adaptive to deformation of the upper structure, changes the construction technology, can carry out direct injection, improves the construction efficiency and reduces the labor intensity of workers.

Description

Technical field [0001] The invention belongs to building materials, and specifically relates to a material for drainage layer in tunnel construction. Background technique [0002] In tunnel construction, drainage waterproof technology is an important part of tunnel construction. At present, the widely used road tunnel waterproofing technology is to set up non-woven fabrics and waterproof boards between the initial support and the secondary lining. The non-woven fabrics hung play a role of water diversion and buffering, which can remove the water on the inner wall. The non-woven fabric layer is the drainage layer. The disadvantages are: non-woven fabrics are manually hung on the concrete layer, the construction efficiency is low, and the labor intensity of workers is relatively large; the non-woven fabric layer cannot be closely attached to the upper sprayed concrete base layer, making the non-woven fabric easy rupture. Summary of the invention [0003] In order to solve the abo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L23/08C08L31/04C08K7/04E21F16/02
Inventor 刘伟吴梦军刘洋黄伦海王联果孙建国袁永明
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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