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Water drainage system and method for tunnel passing through karst cave

A drainage system and tunnel technology, which is applied in the field of drainage systems where tunnels pass through karst caves, achieves the effects of convenient construction, ensuring safety, and reducing maintenance efforts and costs.

Pending Publication Date: 2021-03-05
BEIJING MUNICIPAL ROAD & BRIDGE +1
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  • Abstract
  • Description
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Problems solved by technology

[0003] The invention provides a drainage method for tunnels passing through karst caves, the purpose of which is to overcome the above-mentioned deficiencies in the prior art, solve the problem of drainage of groundwater around the tunnel, pass through karst caves reasonably, and effectively prevent lining damage caused by increased water pressure. Cracking, effectively improving the tunnel construction quality and overall structural stability, and achieving better economic benefits

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  • Water drainage system and method for tunnel passing through karst cave
  • Water drainage system and method for tunnel passing through karst cave
  • Water drainage system and method for tunnel passing through karst cave

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Embodiment Construction

[0055] The specific implementation method of the present invention is now specifically described in conjunction with the accompanying drawings. The accompanying drawings are only schematic diagrams and only illustrate the basic structure of the patent. The examples of the present invention are developed on the basis of no creativity by those skilled in the art, and all belong to the protection scope of the present invention .

[0056] The principle and steps of tunnel crossing karst cave drainage:

[0057] like figure 1 As shown, the present invention provides a drainage method for a tunnel passing through a karst cave. Specifically, the drainage of the main body of the tunnel is that the permeable water of the initial support 1.1 of the tunnel passes through the circular drainage pipe 1.3 and the longitudinal drainage pipe 1.5, and then enters the horizontal drainage pipe 1.7, thereby Drain into the tunnel longitudinal drainage ditch 1.6. It can also be discharged into the ...

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Abstract

Provided is a water drainage system for a tunnel passing through a karst cave, and belongs to the technical field of tunnel engineering construction. The system comprises a tunnel main body waterproofand water drainage system (1), a karst cave water drainage system (2), an inverted arch water drainage system (3), and a support system (4). The water drainage system for the tunnel passing through the karst cave solves the problem of water drainage of underground water around a tunnel; and the tunnel reasonably penetrates through the karst cave, so that lining cracking caused by water pressure increase is effectively prevented, the tunnel construction quality is effectively improved, the overall structure is stable, and good economic benefits are obtained.

Description

Technical field: [0001] The invention belongs to the technical field of tunnel engineering construction, in particular to a drainage system for tunnels crossing karst caves. Background technique: [0002] The geological conditions in the area where the tunnel is located are complex, and the groundwater in the tunnel body has formed an independent drainage system. Under such a geological background, it is often easy to form underground karst forms with a certain scale. In the process of tunnel excavation, there is a high probability of encountering large karst caves, and there is a high possibility of water and sand gushing during tunnel construction. Therefore, it is necessary to design and formulate drainage methods for tunnels passing through karst caves in advance to avoid construction accidents. Since karst caves are usually groundwater channels, the problem of groundwater drainage around the tunnel needs to be solved during the operation period, so how to pass through k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/02E21D20/00E21D11/10E21D11/38E21D11/15E21D11/05
CPCE21D11/05E21D11/10E21D11/152E21D11/38E21D20/00E21F16/02
Inventor 王梦筱孙西濛叶锦华王利伟邓博曹艳辉邓洪亮李勃亨王守凡
Owner BEIJING MUNICIPAL ROAD & BRIDGE
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