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Combined joint for secondary lining reinforcement of mine method construction tunnel and mounting method

A technology of secondary lining and installation method, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of insufficient bending moment resistance of secondary lining reinforcement, reduce joint waterproof failure, reduce fracturing risk, increase large area effect

Inactive Publication Date: 2020-04-17
云南功东高速公路建设指挥部
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a combined joint and installation method for the secondary lining reinforcement of tunnels constructed by mining methods that can solve the problem of insufficient bending moment resistance of the secondary lining reinforcement in the prior art

Method used

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  • Combined joint for secondary lining reinforcement of mine method construction tunnel and mounting method
  • Combined joint for secondary lining reinforcement of mine method construction tunnel and mounting method
  • Combined joint for secondary lining reinforcement of mine method construction tunnel and mounting method

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with accompanying drawing:

[0038] Such as figure 1 As shown in , it is a schematic structural diagram of the combined joint used for secondary lining reinforcement of tunnels constructed by mining methods.

[0039] The combined joint used for the secondary lining reinforcement of tunnels constructed by mining methods of the present invention includes an outer arc joint 1 and an inner arc joint 2, and the outer arc joint 1 includes two ends respectively arranged at the ends of two opposite secondary lining segments 3. The connection groove 35, a plurality of anchor bars 15 are arranged in parallel in the connection groove 35. One side of the connection groove 35 is respectively provided with C-shaped members 11, and the bottom surface of the C-shaped members 11 is provided with bolt holes 12, and anchor bars 15 are pierced in the bolt holes 12, and the C-shaped members 11 are connected by H-shaped me...

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Abstract

The invention discloses a combined joint for secondary lining reinforcement of a mine method construction tunnel and a mounting method. The combined joint comprises an outer arc surface joint and an inner arc surface joint. The outer arc surface joint comprises connecting grooves arranged on the end portions of two opposite secondary lining segments correspondingly. C-shaped members are arranged on one sides of the connecting grooves correspondingly, bolt holes are formed in the bottom surfaces of the C-shaped members, anchor ribs are arranged in the bolt holes in a penetrating mode, and the C-shaped members are connected through H-shaped members. One ends of the H-shaped members abut against supporting members. The mounting method comprises the steps that the connecting grooves, the C-shaped members, an annular joint hand hole and a straight bolt hole are preset in the two secondary lining segments. The combined joint for secondary lining reinforcement of the mine method constructiontunnel and the mounting method can solve the problem that secondary lining reinforcement is insufficient in bending moment resistance in the prior art, the structure is simple, the reliability is high, the stress concentration effect of segment joints can be remarkably weakened, and the concrete fracturing risk of the segment joints is reduced.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a combined joint and an installation method for secondary lining reinforcement of tunnels constructed by mining methods. Background technique [0002] The method usually used in existing tunnel construction is the mining method, which includes the traditional mining method, the new Austrian method, the new Italian method and similar construction methods. Reinforced trolleys are used for cast-in-place construction, and the construction efficiency is low. [0003] With the development of construction mechanization and intelligence, the secondary lining reinforcement of tunnels is prefabricated in factories and assembled on site, which can not only improve construction efficiency, but also reduce material waste and environmental pollution. Broad application prospects. [0004] Different from the general circular tunnel section constructed by rock boring machine, the mini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08
CPCE21D11/083
Inventor 王秋懿谭文明韩自强袁和芬徐艳珊
Owner 云南功东高速公路建设指挥部
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