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Tunnel secondary lining structure and construction method thereof

A secondary lining and tunnel technology, applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of increased labor intensity, low degree of mechanization, and low construction efficiency, and achieve improved working conditions, strong protection performance, and improved construction efficiency effect

Inactive Publication Date: 2020-06-16
北京泰德市政工程有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, tunnel construction includes initial support and secondary lining. The secondary lining structure includes inverted arches and arch walls. The tunnel chamber is excavated manually or mechanically, and then the initial support is constructed. After completion, the cast-in-situ tunnel is inverted The arch and arch wall adopt the method of binding steel bars on site and then pouring concrete. This construction method has the disadvantages of low degree of mechanization, cumbersome construction, time-consuming and labor-intensive work, increased labor intensity, and low construction efficiency.

Method used

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  • Tunnel secondary lining structure and construction method thereof
  • Tunnel secondary lining structure and construction method thereof
  • Tunnel secondary lining structure and construction method thereof

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] to combine figure 1 and figure 2 , is the tunnel secondary lining structure disclosed in the present invention, including multiple tunnel units arranged in sequence along the extension direction of the tunnel and connected to each other, each tunnel unit includes an inverted arch 1, and arch walls respectively arranged on both sides of the inverted arch 1 2 and the arch ring 3 arranged on the upper end of the arch wall 2, wherein the inverted arch 1, the arch wall 2 and the arch ring 3 are reinforced concrete structures, and the inverted arch 1, the arch wall 2 and the arch ring 3 are respectively provided with multiple intersecting structures. Horizontal connecting ribs 4 and longitudinal connecting ribs 5, horizontal connecting ribs 4 protrude from the joints of inverted arch 1 and arch wall 2, and arch wall 2 and arch ring 3, and the horizontal co...

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Abstract

The invention relates to a tunnel secondary lining structure, and relates to the technical field of tunnel construction. The tunnel secondary lining structure comprises a plurality of tunnel units which are arranged in sequence in the extension direction of a tunnel and are mutually connected, and the tunnel units comprise inverted arcs, arc walls arranged on the two sides of the inverted arcs, and arc rings arranged at the upper ends of the arc walls; the inverted arcs, the arc walls and the arc rings are of a reinforced concrete prefabricated structure; cross connecting ribs stretch out of connection parts of the inverted arcs and the arc walls and connection parts of the arc walls and the arc rings; the cross connecting ribs are mutually connected correspondingly; and back pouring beltsare arranged at the cross connecting ribs. The tunnel secondary lining structure has the advantages that the assembly rate is high, construction efficiency is improved, the construction cycle is shortened, integrality of the lining structure is good, and protective properties are good.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel secondary lining structure and a construction method thereof. Background technique [0002] A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. At present, tunnel construction includes initial support and secondary lining. The secondary lining structure includes inverted arches and arch walls. The tunnel chamber is excavated manually or mechanically, and then the initial support is constructed. After completion, the cast-in-situ tunnel is inverted The arch and arch wall adopt the method of binding steel bars on site and then pouring concrete. This construction method has the disadvantages of low degree of mechanization, cumbersome construction, time-consuming and labor-intensive work, increased labor intensity, and low construction efficiency. Contents of the invention [0003] The first object of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/08E21D11/10E21D11/38E21F16/02
CPCE21D11/00E21D11/08E21D11/083E21D11/10E21D11/105E21D11/38E21F16/02
Inventor 丁勇任军郭晨辉张仁杰
Owner 北京泰德市政工程有限公司
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