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Construction method for large-dip-angle tunnel type anchorage secondary lining support

A construction method and tunnel-like technology, which is applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems of uneven secondary lining thickness, inability to adjust the height accurately, heavy bracket quality, etc., and achieve reliable decision-making basis and technical indicators , Promote the progress of construction technology and the effect of fast project progress

Active Publication Date: 2021-11-19
中建桥梁有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]At present, the construction of the second lining support of the tunnel type anchorage of the domestic suspension bridge is to assemble the steel arch frame with the full section of the tunnel anchor section in the tunnel, because the working surface in the tunnel is narrow , the weight of the bracket is heavy, it is difficult for large machinery to operate normally in the cave, the height cannot be adjusted accurately, the installation error is large, and the construction is difficult, resulting in uneven thickness of the secondary lining. precision construction method

Method used

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  • Construction method for large-dip-angle tunnel type anchorage secondary lining support
  • Construction method for large-dip-angle tunnel type anchorage secondary lining support
  • Construction method for large-dip-angle tunnel type anchorage secondary lining support

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Embodiment Construction

[0052] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0053] as attached Figure 1 to Figure 6 As shown, a construction method for the second lining support of large-inclination tunnel anchorage includes the following steps:

[0054] Step 1, manufacturing a plurality of two-liner frame units 1, each of which is an arched structure, including two vertical supports 1-1 and a steel arch 1-2, the steel Both ends of the arch 1-2 are respectively fixedly connected to the two vertical supports 1-1. Among them, the steel arch 1-2 is divided into 3 sections, which are formed by connecting the 3 steel arch monomers in sequence, and the two ends of the steel arch monomers in each section are provided with flange plates for adjacent The connection between the single steel arches is described, which not on...

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Abstract

The invention discloses a construction method for a large-dip-angle tunnel type anchorage secondary lining support. The construction method comprises the steps that (1) a plurality of secondary lining support piece units are manufactured, and each secondary lining support piece unit is of an arch structure; (2) secondary lining side walls are poured, a plurality of brackets are embedded in the secondary lining side wall on each side, and the brackets are located on the same straight line; a jack is arranged on each bracket, and multiple jacks jointly support a longitudinal adjusting beam arranged in the linear direction; (3) the secondary lining support is installed, specifically, a plurality of secondary lining support piece units are installed in sequence, the two ends of each secondary lining support piece unit are connected with longitudinal adjusting beams on the secondary lining side walls on the two sides of the tunnel respectively, and the secondary lining support piece units are arranged at intervals; and after the secondary lining support piece units on each construction section are installed, the elevations of the secondary lining support piece units are adjusted by adjusting the jacks, and installation of the secondary lining support is completed. According to the construction method, the construction quality is guaranteed, the construction efficiency is improved, and the construction cost is saved.

Description

technical field [0001] The invention relates to the construction technology of tunnel type anchorage, in particular to a construction method for the secondary lining support of tunnel type anchorage with large inclination angle. At present, the construction requirements for the second lining of the tunnel anchor in the construction process. Background technique [0002] Due to the spanning ability and aesthetics of suspension bridges, more and more suspension bridges have been built in my country in recent years. The tunnel anchorage construction of suspension bridges is one of the key control contents of suspension bridge construction. How to speed up the construction progress of tunnel anchors and how to ensure tunnel anchor support Quality has always been a research topic for construction builders. [0003] At present, the construction of the second lining bracket of the tunnel-type anchorage of the domestic suspension bridge is to assemble the steel arch frame with the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00Y02E10/20
Inventor 齐帆梁隆祥翟跃李志杰郑文兵樊小波
Owner 中建桥梁有限公司
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