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Emergency subaqueous tunnel flood-prevention construction method for subaqueous tunnels

A construction method and tunnel technology, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as no consideration, and achieve the effects of strong applicability, convenient construction, and easy implementation

Active Publication Date: 2012-06-06
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This situation has not been considered in tunnels so far

Method used

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  • Emergency subaqueous tunnel flood-prevention construction method for subaqueous tunnels
  • Emergency subaqueous tunnel flood-prevention construction method for subaqueous tunnels

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Embodiment Construction

[0015] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0016] Numbers 1-9 in the accompanying drawings represent the open section of the tunnel 1, the tunnel pavement (lane) 2, the pre-embedded steel plate for the lane 3, the pavement structure 4, the grooved steel plate 5, the door steel plate 6, the pile of soil 7, the open opening 8, the tunnel Buried paragraph 9.

[0017] In order to solve the problem of pouring river water into the underwater tunnel and quickly invading the urban area in an emergency, the method of the present invention provides a temporary anti-flooding measure with steel plate mounds at the junction of the open section of the tunnel and the buried section of the tunnel, which can be used in emergency situations. Both ends of the tunnel are closed to prevent the ...

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Abstract

The invention belongs to the field of tunneling, and particularly relates to an emergency subaqueous tunnel flood-prevention construction method for subaqueous tunnels. The method comprises the following steps: respectively burying steel plates on the driveway at the portal at the open section on both ends of the tunnel, and firmly connecting the steel plates with the pavement structure; welding channel-section steel plates above the buried steel plates to form a gate slot structure; arranging the gate steel plate in the gate slot to block the tunnel portal; and pouring slag earth into the tunnel portal from the ground outside the portal to form a mound, which abuts against the gate steel plate and resists the hydraulic pressure impact outside the portals at both ends of the tunnel. The construction method arranges the steel plate mound at the portal at the open section of the tunnel as the temporary flood-prevention measure, and can effectively prevent river water from injecting into the tunnel in an emergency. The construction method adjusts measures according to local conditions, and has the advantages of easy implementation, convenient construction and high speed.

Description

technical field [0001] The invention belongs to the field of tunnel engineering, and in particular refers to an emergency flood prevention construction method for underwater tunnels. Background technique [0002] When constructing a cross-river road tunnel, the problem of backflow of river water in the event of an emergency must be considered. For example, the urban area of ​​Shanghai is relatively low-lying, with an elevation generally between 3.0 and 3.5m, which is lower than the average high tide level throughout the year. For example, when the underwater tunnel in Shanghai breaks or is damaged due to sudden accidents (such as explosions, earthquakes, wars, or others), river water pours into the tunnel and spreads quickly to the urban area, which will endanger people's lives and property. [0003] In order to prevent problems before they happen and eliminate the risk of the urban area being flooded due to the tunnel being used as a water inlet under such special working...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38E21F17/12
Inventor 彭子晖李新星傅华宋振华申伟强曹文宏
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE