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A prefabricated secondary lining structure for underground excavation tunnel and its construction method

A secondary lining and prefabricated technology, applied in tunnel lining, tunnel, shaft lining, etc., can solve the problem of uneven quality of waterproof and cast-in-place secondary lining concrete structure, unreliable waterstops at construction joints, and poor structural thickness control. and other problems, to achieve the effect of improving the working environment, saving temporary materials, and reducing the surrounding environment and noise pollution

Active Publication Date: 2018-12-11
BEIJING RAIL & TRANSIT DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (3) The water stop belt of the construction joint joint is not firm;
[0009] (5) The structure pouring is not dense;
[0010] (6) Poor control of structural thickness;
[0012] It can be seen that the cast-in-place secondary lining structure of tunnels in the prior art is affected by objective factors, the quality of waterproof and cast-in-place secondary lining concrete structures varies, and the construction efficiency is low

Method used

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  • A prefabricated secondary lining structure for underground excavation tunnel and its construction method
  • A prefabricated secondary lining structure for underground excavation tunnel and its construction method
  • A prefabricated secondary lining structure for underground excavation tunnel and its construction method

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Embodiment Construction

[0083] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0084] In the technical proposal of the invention, an assembled secondary lining structure of a tunnel is provided. The prefabricated secondary lining structure of the underground excavation tunnel includes: an assembled structure in which multiple rings are arranged sequentially along the extension direction of the tunnel;

[0085] Each ring assembly structure includes a plurality of assembly blocks;

[0086] Each adjacent assembly block in the same ring assembly structure is connected by a plurality of connecting devices arranged along the ring direction on the edge of the assembly block;

[0087] Adjacent assembling blocks in different ring assembling structures are connected by a plurality of connecting devices arranged at the edges of the assembli...

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Abstract

The invention discloses a fabricated secondary lining structure of a bored tunnel and a construction method of the fabricated secondary lining structure. The fabricated secondary lining structure of the bored tunnel comprises a plurality of circles of splicing structures sequentially arranged in the extending direction of the tunnel. Each circle of splicing structure comprises a plurality of splicing blocks. The adjacent splicing blocks in the same circle of splicing structure are connected through a plurality of connecting devices arranged on the edges of the splicing blocks in the circumferential direction. The adjacent splicing blocks in the different circles of splicing structures are connected through connecting devices arranged on the edges of the splicing blocks in the extending direction of the tunnel. According to the fabricated secondary lining structure of the bored tunnel and the construction method of the fabricated secondary lining structure, working conditions can be improved, labor can be saved, and a large number of temporary materials can be saved. Standardization, mechanization and industrialization of the secondary structure of the bored tunnel are achieved, and the construction efficiency and industrialization level of the secondary lining structure are improved.

Description

technical field [0001] The invention relates to the technical field of civil engineering construction, in particular to an assembled secondary lining structure of a tunnel excavated and a construction method thereof. Background technique [0002] At present, domestic shield tunnel design and construction, shield machine equipment, research and application technology are relatively mature, but the origin and reception of shield tunnels have higher requirements on site conditions, which may The shield method cannot be used for construction. Underground excavation tunnels are suitable for various line conditions, and its construction method has the advantages of low construction site requirements, flexible organization, and easy guarantee of construction period, so it occupies a certain proportion in subway construction. Therefore, improving the construction efficiency of the secondary lining of underground excavation tunnels, improving the on-site operating environment, impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21D11/38
CPCE21D11/08E21D11/38
Inventor 罗富荣金淮童利红李松梅李冰郝志宏杜玉峰王伟锋陈滔王恒张玉芳
Owner BEIJING RAIL & TRANSIT DESIGN & RES INST
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