Entrance structure

A technology of shield segments and components, which is applied in shaft linings, tunnel linings, underground chambers, etc., and can solve problems such as easy collapse of tunnels

Inactive Publication Date: 2020-04-24
中铁十四局集团隧道工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a kind of opening structure, to solve the problem that the opening of the tunnel in the prior art is easy to collapse

Method used

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] The invention provides an entrance structure, which is suitable for tunnel entrance construction, please refer to Figure 1 to Figure 3 ,, The hole structure includes: a pre-embedded component 10, the pre-buried component 10 is arranged around the hole; a sealing component 20, the sealing component 20 is arranged on the pre-buried component 10; a waterproof device 30, the waterproof device 30 is connected with the sealing component 20; wherein, the sealing At least part of the assembly 20 and at least part of the waterproof device 30 are arranged in the hole to cover at least part of the hole respectively, and the waterproof device 30 is used to connect with the shield segment 70 in the ...

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Abstract

The invention provides an entrance structure. The entrance structure is suitable for tunnel entrance construction, and the entrance structure comprises a pre-embedded assembly, a sealing assembly anda waterproof device, wherein the pre-embedded assembly is arranged around an entrance, the sealing assembly is arranged on the pre-embedded assembly, the waterproof device is connected with the sealing assembly, at least part of the sealing assembly and at least part of the waterproof device are arranged in the entrance so as to shield at least part of the entrance, and the waterproof device is used for being connected with a shield segment in the entrance so as to seal the entrance. According to the entrance structure, the problem that in the prior art, a tunnel entrance is prone to collapsing is solved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to an entrance structure. Background technique [0002] At present, with the rapid development of urban rail transit, shield construction has gradually become the main construction method of urban subway construction. The shield method is to push the shield machine in the ground, and support the surrounding rock walls through the shield casing and segments to prevent collapse into the tunnel. At the same time, the cutting device is used to excavate the soil before excavation. Ship out of the hole. In the construction of the tunnel, the entrance of the tunnel is one of the most prone to collapse. Not only the stress is relatively concentrated at the entrance of the tunnel, but also the opening is prone to water seepage. Not only is it prone to deformation, but it will also cause the reinforcement device to fail to work, causing the hole to collapse. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14E21D11/38
CPCE21D9/14E21D11/38E21D11/385
Inventor 陈健李克金王剑徐传东郭栋王志康耿本涛高洪吉孙伟张曦胡少华王北北
Owner 中铁十四局集团隧道工程有限公司
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