Fast water inrush prevention device for underwater tunnel

An underwater tunnel and anti-surge technology, applied in mining equipment, mining equipment, earth-moving drilling, etc., can solve the problems of involuntary location selection, affecting rescue efficiency, complicated production process, etc., to prevent the spread of water potential, and to operate conveniently and quickly. , the effect of simple construction method

Pending Publication Date: 2020-05-08
CHINA RAILWAY LIUYUAN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) The door frame invades the clearance of the tunnel, forming a bottleneck for transportation and driving;
[0006] 2) In order to meet the sealing requirements, the concrete door frame must be provided with a sill, and a steel plate bridge should be placed obliquely before driving. If the door leaf is closed, heavy obstacles such as steel plate bridges must be removed first, which will undoubte

Method used

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  • Fast water inrush prevention device for underwater tunnel
  • Fast water inrush prevention device for underwater tunnel
  • Fast water inrush prevention device for underwater tunnel

Examples

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Embodiment Construction

[0032] In order to better understand the purpose, structure and function of the present invention, a rapid anti-surge device for underwater tunnels of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] Such as Figure 1 to Figure 6 As shown, it is shown as a fast anti-surge device for an underwater tunnel of the present invention, and the space is reserved by the side wall of the tunnel, including an air pump 4, a restraint belt 5 and an inflatable air bag 2. The opening end of the airbag 2 is fixed on the side wall of the tunnel lining 1 through the pressure plate 7 and the bolt 6; the air pump 4 is arranged on the ground outside the tunnel to inflate the airbag 2; The air pump 4 on the ground is connected, and the other end is connected with the air bag 2 to be inflated. The air pump 4 inflates the air bag 2 through the inflation tube 3; the restraint belt 5 is arranged outside the air bag 2 and is arranged...

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Abstract

The invention discloses a fast water inrush prevention device for an underwater tunnel. The fast water inrush prevention device comprises an expandable airbag, an inflation pump, and a plurality of restraint belts, wherein the expandable airbag is fixedly arranged on the side wall of a tunnel lining, the inflation pump is arranged outside the tunnel and used for inflating the airbag, and the restraint belts are arranged outside the airbag and used for restraining the airbag in a compressed state. According to the fast water inrush prevention device for the underwater tunnel, the fast water inrush prevention device is suitable for tunnels with various cross-section shapes, the problems such as construction and transportation affecting, surrounding rock condition limiting, and difficult building and dismantling due to the fact that a previous tunnel water retaining device occupies a tunnel clearance are solved, when a water inrush accident occurs in the tunnel, a water retaining wall canbe formed by opening an air pump on the ground, a blockage wall can be quickly established through ground control, the operation is convenient and fast, the fast water inrush prevention device can beput into use quickly, the spread of water is prevented to provide buffer time for emergency rescue, and the safety of a worker and equipment behind the working side is ensured.

Description

technical field [0001] The invention relates to the technical field of tunnel self-safety devices, in particular to a rapid anti-surge device for underwater tunnels. Background technique [0002] Tunnels crossing rivers and seas are often important nodes in modern urban transportation systems. At present, the most commonly used construction methods for underwater tunnels are: mining method, shield method, immersed tube method, etc. Among them, mining method tunnels are used in deep water and geological conditions. It is widely used in complex site environments, and representative projects include Xiamen Xiang'an Submarine Tunnel and Qingdao Jiaozhou Bay Submarine Tunnel, etc. [0003] Different from the shield tunnel, the excavation surface of the mining method underwater tunnel is open. When passing through the water-rich and weak stratum or the rock stratum with developed cracks, the excavation surface is prone to water inrush accidents, which will affect the construction ...

Claims

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Application Information

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IPC IPC(8): E21F17/107
CPCE21F17/107
Inventor 宋超业贺维国杜宝义王汉晨李勇吕青松陈翰吕书清
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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