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Construction method for prefabricating immersed tube tunnel tubulation adopting mobile dry dock

An immersed tube tunnel and construction method technology, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of difficult land acquisition, long construction period, and high dredging costs for fixed dry docks, and achieve the goal of avoiding difficult land acquisition, small draft, and Effect of reducing dredging fee

Inactive Publication Date: 2006-12-27
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for prefabricating immersed tube tunnel sections using mobile dry docks. The construction method can more flexibly arrange the construction site, and can effectively solve the problem of land requisition for fixed dry docks, long construction period, and river (sea) roads. Difficulties such as high dredging costs

Method used

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  • Construction method for prefabricating immersed tube tunnel tubulation adopting mobile dry dock
  • Construction method for prefabricating immersed tube tunnel tubulation adopting mobile dry dock
  • Construction method for prefabricating immersed tube tunnel tubulation adopting mobile dry dock

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Embodiment Construction

[0022] The present invention will be more readily understood by reference to the following examples, which are given to illustrate the invention and not to limit the scope of the invention.

[0023] 1. Project overview

[0024] Guangzhou Luntou-Biological Island Tunnel is located in the southeast of Guangzhou City, connecting the southern expressway and the biological island. The tunnel line runs in a north-south direction. The starting point of the project design is located in Luntou Village, Haizhu District, Guangzhou City. It connects the southern expressway and the extension line of Keyun Road. It passes through Luntou Sea in the middle. The design end point ends on the biological island. The total length of the line is 1111.18 meters . The project is a two-way four-lane municipal cross-river highway tunnel. The middle section of the river is constructed using the underwater immersed tube method. The immersed tube section has a total length of 277m and is composed of four...

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Abstract

The invention relates to a method for constructing movable dry dock preformed sink tube tunnel section, which uses semi-dive dock as movable dry dock; uses right dock to perform the sink tube tunnel section; then drawing movable dry dock to the diving position near the tunnel; separating the movable dry dock and the sink tube tunnel tube; then floating the sink tube tunnel tube to the temporary anchoring position to process secondary installment; then completing the connection of tubes. Compared with present technique, the invention has low cost and short time.

Description

technical field [0001] The invention relates to a construction method for prefabricating a pipe section of an immersed pipe tunnel by using a mobile dry dock. Background technique [0002] At present, the prefabrication of immersed tube tunnel sections in China adopts the fixed dry dock scheme, that is, the fixed dry dock is excavated near the tunnel site near the river (sea) bank and the prefabrication of the immersed tube section is completed in the dry dock. Water is released in the dry dock until the pipe section floats, and the pipe section is floated out of the dock to complete the secondary outfitting, and finally complete the sinking and docking of the pipe section at the tunnel site. The main construction steps are: (1) choose a suitable place as the site for the fixed dry dock prefabricated pipe section; (2) excavate the fixed dry dock; (3) prefabricate the pipe section, and the pipe section must meet the precision requirements for pipe section sinking and docking;...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/063
Inventor 宋仪贺维国邢永辉周华贵刘建飞陈海军王怀东杨世东彭红霞张先锋丁恒张淑敏赵正蓉杨文军
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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