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Tube section joint fire-protection structure for immersed tube tunnel and construction method

A technology of immersed tunnel and construction method, which is applied in basic structure engineering, artificial island, water conservancy engineering and other directions, can solve the problems of fire prevention failure and inability to adapt to the fireproof board, so as to prevent impact damage, improve stability, and improve efficiency. Effects of Sex and Reliability

Active Publication Date: 2017-08-08
CHINA COMMUNICATIONS CONSTRUCTION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the fire protection design of pipe joints existing in the prior art. The gap between the two joints is directly fixed by the fire board, which cannot adapt to the longitudinal deformation of the tunnel during operation, causing the fire board to break or the fire board to break. In order to solve the above-mentioned deficiencies of fire protection failure due to excessive joints, a fireproof structure of pipe joint joints is provided, and a construction method for fire protection structure of pipe joint joints for immersed tunnels is also provided

Method used

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  • Tube section joint fire-protection structure for immersed tube tunnel and construction method
  • Tube section joint fire-protection structure for immersed tube tunnel and construction method
  • Tube section joint fire-protection structure for immersed tube tunnel and construction method

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Embodiment 1

[0040] Such as figure 1 , 2 . As shown in 3, a fireproof structure for pipe joint joints used in immersed tunnels, including:

[0041] The first protective part 1, the first protective part 1 is a rigid structural part, one end of which is used to be fixed on the end side of the pipe joint 01, and the other end is used to be flexibly connected to the end side of the pipe joint 2 02;

[0042] The second protective piece 2, the second protective piece 2 is a flexible structural member, one end of which is used to be fixed on one side of the end of the pipe joint 1 01, and the other end is used to be fixed on the end of the pipe joint 2 02 side.

[0043]Wherein the above-mentioned second protective part 2 is located in the joint inner chamber 03 surrounded by the first protective part 1 and the first pipe joint 01 and the second pipe joint 02. When an explosion impact occurs in the driving hole 04 of the pipe joint, the rigid first The protective piece 1 protects the flexible ...

Embodiment 2

[0051] Such as Figure 1-3 As shown, the present invention also provides a construction method for the above-mentioned fireproof structure of the pipe joint, comprising the following steps;

[0052] Step 1. Install the second protective piece 2, and connect the second protective piece 2 between the end of the first pipe joint 01 and the second pipe joint 02 after the butt joint is completed, that is, fix one end of the second protective piece 2 on the pipe joint On the end of 101, fix the other end on the end of pipe joint 202;

[0053] Step 2. Install the first protective piece 1. After fixing one end of the first protective piece 1 to the end of the pipe joint 101 through the bolt 6, connect the other end to the pipe joint 2, so that the first protective piece 1 The other end can slide relative to the end surface of pipe joint 202.

[0054] In the above step 2, before installing the first protective piece 1, connect the support piece 3 between the end of pipe joint 1 01 an...

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Abstract

The invention discloses a tube section joint fire-protection structure for an immersed tube tunnel and a construction method. The tube section joint fire-protection structure comprises a first protection component and a second protection component. The first protection component is a rigid structural component; and one end of the first protection component is used for being fixed to one side of the end of a first tube joint, and the other end of the first protection component is used for being movably connected to one side of the end of a second tube joint. The second protection component is a flexible structural component; and one end of the second protection component is used for being fixed to one side of the end of the first tube joint, and the other end of the second protection component is used for being fixed to one side of the end of the second tube joint. According to the construction method, the second protection component is mounted in the first place, and then the first protection component is mounted. According to the fire-protection structure for the immersed tube joints, two joint fire-protection structure bodies which combine rigidity and flexibility are formed through the first protection component and the second protection component; effectiveness and reliability of fire protection and heat insulation achieved during the operation period can be effectively improved; furthermore, the tube section joint fire-protection structure can be flexibly adapted to deformation of the tube section joints; during the construction period and the operation period, the tube section joint fire-protection structure can play the effective protection role for tube sections; and the construction method for the fire-protection structure for the tube section joints is simple, safe and efficient.

Description

technical field [0001] The invention relates to the field of tunnel engineering, in particular to a fireproof structure and construction method for pipe joint joints used in immersed tube tunnels. Background technique [0002] In the field of tunnel engineering, especially when it involves the joint installation of two structural joints, it is necessary to carry out fire protection design for joints and other parts, especially when it involves joint joints of underwater immersed tunnels. Fire protection design shall be carried out at joint joints. [0003] The existing fire protection design of immersed pipe joint joints is generally implemented by overlapping multiple layers of fire prevention boards, that is, the rigid fire protection board is fixed between two joint joints to seal the two joint joints; this structure The construction is cumbersome, the heat insulation and sealing are not good, and it is especially unable to adapt to the longitudinal tension and deformati...

Claims

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Application Information

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IPC IPC(8): E02D29/063E02D29/16
CPCE02D29/063E02D29/16
Inventor 张志刚刘晓东杨永宏林巍吕勇刚刘经国
Owner CHINA COMMUNICATIONS CONSTRUCTION
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