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Fabricated type yielding type tunnel primary supporting structure and construction method

A technology of initial support and profiling, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problem that the initial support cannot achieve the supporting effect in time, and achieve the effect of simple structure, fast speed and quick operation.

Pending Publication Date: 2019-02-19
SOUTHWEST JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention proposes a tunnel initial support structure and a construction method using the support structure, so as to solve the defect that the traditional tunnel initial support cannot achieve the support effect in time

Method used

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  • Fabricated type yielding type tunnel primary supporting structure and construction method
  • Fabricated type yielding type tunnel primary supporting structure and construction method
  • Fabricated type yielding type tunnel primary supporting structure and construction method

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Embodiment Construction

[0032]The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Such as Figure 1-Figure 2 Shown: a prefabricated yield-type tunnel primary support structure, composed of assembly unit 1 and water stop 2, the assembly unit 1 and the water stop 2 are alternately arranged to form an arch to support the excavation surface of the tunnel Shaped structure, the mechanical connection between the adjacent assembly units 1 and the sealing part 2 are compacted. The assembly unit 1 is a large-rigidity doubl...

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Abstract

The invention provides a fabricated type yielding type tunnel primary supporting structure. The fabricated type yielding type tunnel primary supporting structure is mainly used for solving the problems of long construction period and poor supporting effect in primary supporting of a tunnel surrounding rock traditionally. The fabricated type yielding type tunnel primary supporting structure mainlycomprises fabricated units (1) and a water stop part (2), the fabricated units (1) and the water stop part (2) are arranged alternately to form a closed arch-shaped structure of an excavation surfaceof a supporting tunnel, and the adjacent fabricated units (1) are mechanically connected and compact the water stop part (2). The structure is simple, the excavation surface of the tunnel can be timely followed up for primary supporting, the installation is fast and convenient, the fabricated type yielding type tunnel primary supporting structure is suitable for performing rapid primary supportingconstruction in the tunnel of a soft ground, and mainly used for performing timely primary supporting for the excavation of the tunnel.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to an initial support structure of an assembled yielding tunnel and a construction method using the structure. Background technique [0002] my country's transportation, hydropower, comprehensive utility corridors and other infrastructure constructions are large in scale, large in number, fast in speed, and have great potential. Tunneling is widely used as an efficient way to cross mountains. At present, mountain tunnels mainly adopt a composite lining structure, that is, the construction sequence structure of primary support, waterproof board and secondary lining. The primary support of this structure is often composed of shotcrete and steel frames, which can better adapt to ordinary Strata. [0003] However, when sprayed concrete is used for initial support in the initial stage, firstly, the material collection and mixing of concrete are greatly affected by the terrain and wea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/38E21D11/08
CPCE21D11/08E21D11/18E21D11/385
Inventor 孙克国谭永杰匡亮许炜萍肖支飞
Owner SOUTHWEST JIAOTONG UNIV
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