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Lateral Drainage Devices for Tunnel Rock Walls

A horizontal drainage and tunnel technology, applied in drainage, safety devices, mining equipment, etc., can solve the problems of inconvenient lining construction work, and achieve the effect of avoiding a large amount of dripping water, simple structure, and ensuring work progress

Active Publication Date: 2018-01-16
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of tunnel lining construction, in order to ensure the drainage effect of the tunnel, it is generally necessary to install a drainage device between the primary lining and the secondary lining of the tunnel to guide the seepage water from the rock wall to the tunnel drainage channel for centralized discharge. However, when the tunnel is excavated, Due to water seepage and dripping in the surrounding rock of the tunnel, especially at the top wall of the surrounding rock, a large amount of dripping water will bring inconvenience to the operators in the subsequent lining construction work

Method used

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  • Lateral Drainage Devices for Tunnel Rock Walls
  • Lateral Drainage Devices for Tunnel Rock Walls
  • Lateral Drainage Devices for Tunnel Rock Walls

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Embodiment Construction

[0010] A lateral drainage device for the rock wall of a tunnel, such as figure 1 with 2 As shown, including tunnel rock formation A and initial lining support layer B, it is characterized in that: the interface of tunnel rock formation A and initial lining support layer B is provided with water diversion pipe 10, and described water diversion pipe 10 includes permeable pipe wall 11 and The waterproof pipe wall 12, the permeable pipe wall 11 is arranged adjacent to the tunnel rock formation A and is located above the waterproof pipe wall 12, the water diversion pipe 10 is arranged along the transverse section of the tunnel arch wall, and the nozzles at both ends of the water diversion pipe 10 are respectively Drainage channels leading to both sides of the tunnel. During actual installation, the water diversion pipe 10 can be arranged above the tunnel face, at the junction end face of the tunnel rock layer A and the formed primary lining support layer B, and then spray anchor s...

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Abstract

The invention discloses a horizontal drainage device for tunnel palisades. According to the horizontal drainage device for the tunnel palisades, a tunnel rock stratum and a primary lining supporting layer are included. The joint surface of the tunnel rock stratum and the primary lining supporting layer is provided with a water diversion pipe which comprises a pervious pipe wall and a water-proof pipe wall. The pervious pipe wall is arranged to be close to the tunnel rock stratum and located above the water-proof pipe wall. The water diversion pipe is arranged in a prolonged mode along the horizontal cross section of a tunnel arch wall, and pipe openings of the two ends of the water diversion pipe lead to drainage channels on the two sides of a tunnel. When the tunnel is excavated, stratum dripping water located on the joint surface of the tunnel rock stratum and the primary lining supporting layer can pass through the pervious pipe wall, permeates and drops into the water-proof pipe wall and then enters the drainage channels on the two sides of the tunnel under guiding of the water-proof pipe wall for concentrated discharge. The horizontal drainage device for the tunnel palisades is simple is structure, moreover, the phenomenon that a large amount of dropping water is generated when the tunnel is excavated can be effectively avoided, and accordingly the work progress of constructors is ensured.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a tunnel drainage device. Background technique [0002] During tunnel construction, it is necessary to build a supporting structure with sufficient strength for the rock wall in the cave, that is, the tunnel lining. The tunnel lining includes the primary lining and the secondary lining. While shotcreting, metal anchors are driven into the rock wall to form the primary lining. When the deformation of the primary lining structure meets the requirements, a layer of concrete is poured to form the secondary lining. [0003] In the process of tunnel lining construction, in order to ensure the drainage effect of the tunnel, it is generally necessary to install a drainage device between the primary lining and the secondary lining of the tunnel to guide the seepage water from the rock wall to the tunnel drainage channel for centralized discharge. However, when the tunnel is excavated, Du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 钟金盛
Owner STATE GRID CORP OF CHINA
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