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Tunnel base reinforcement method

A foundation and reinforcement technology, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as failure to achieve expected results, difficulty in curing foundation diseases, and repeated occurrence of tunnel diseases

Inactive Publication Date: 2016-03-30
CHINA SHENHUA ENERGY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the treatment method using grouting often fails to achieve the expected results. Most tunnel diseases occur repeatedly, and base diseases are difficult to be cured

Method used

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] In the present invention, unless stated otherwise, the used orientation words such as "up, down, left, right" usually refer to the orientation of the tunnel base reinforcement method of the present invention during operation, wherein "up, down" with attached figure 2 The settings of the wellpoint tubes shown in figure 1 The direction shown in is the same, where the side of the sleeper with the well point pipe is shown as the right side, the transverse direction of the sleeper refers to the left and right direction of the sleeper, and the longitudinal direction of the sleeper refers to the left and right direction perpendicular to the sleeper; the used o...

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Abstract

The invention discloses a tunnel base reinforcement method. The method includes the steps that A, a plurality of well point holes are drilled in the tunnel defect zone, well point pipes (1) are arranged in the well point holes, a plurality of grouting holes are drilled in the tunnel defect zone, and grouting pipes (2) are arranged in the grouting holes; B, water is pumped through the well point pipes (1) so that the water level of underground water in the tunnel defect zone can be lowered; C, grouting is conducted on the underground part of the railway tunnel defect zone through the grouting pipes (2). By means of the reinforcement method, integrity of the tunnel bottom structure and surrounding rock can be ensured, the bearing capacity of a tunnel base is reinforced, and therefore the tunnel base defect is eradicated.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a method for reinforcing a tunnel base. Background technique [0002] The tunnel base is the bottom structure of the tunnel. The solidity and stability of the bottom structure is the first condition to ensure the good condition of the track or road surface in the tunnel. Due to weak structural durability design, unreasonable drainage design, defective construction technology, poor quality, inadequate daily maintenance and maintenance, and natural and human factors such as repeated power of trains or vehicles and groundwater erosion at the bottom of the tunnel, the bottom of the tunnel will be damaged. There are diseases such as muddying, sinking, damage and rich water. [0003] Conventional grouting and bottom replacement are mostly used for the treatment of grouting, sinking, damage and water-rich diseases of the tunnel bottom structure. For example, Daqin, Houyue and other ...

Claims

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Application Information

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IPC IPC(8): E21D11/10E21F16/02
CPCE21D11/10E21F16/02
Inventor 贾晋中薛继连孟宪洪张千里马伟斌付兵先郭小雄尹成斐程建平唐永康
Owner CHINA SHENHUA ENERGY CO LTD
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