Shield tunnel pipeline support connecting device and anti-falling device in earthquake high-intensity area

Abstract

The invention discloses a shield tunnel pipeline support connecting device and an anti-falling device in an earthquake high-intensity area. The connecting device comprises a shield segment; and reserved bolt hole embedded parts are arranged at the positions, corresponding to pipeline supports, of the shield segment. The anti-falling device is arranged on the shield segment and additionally provided with an embedded plate; the embedded plate is arranged in the middles of the reserved bolt hole embedded parts and standby bolt hole embedded parts; a hanging ring is arranged at the top of the embedded plate; and a closed connecting rope is arranged on the hanging ring in a penetrating mode. The invention further discloses the shield tunnel pipeline support anti-falling device in the earthquake high-intensity area. Due to the structural design, prefabricated members can be accurately positioned during production in a factory, so that the situation that a shield segment structure is damaged by a post-driven anchor bolt is avoided, the situation that individual embedded parts are not replaced after being damaged by earthquake force is avoided, the situation that the support falls off after being damaged by the earthquake force and the personal safety of evacuating passenger flow is endangered is avoided, and no extra tunnel space is occupied.

Description

technical field [0001] The invention relates to the technical field of shield tunnel construction, in particular to a shield tunnel pipeline support connecting device and an anti-falling device in a high seismic intensity area. Background technique [0002] The construction process of the shield tunnel is generally to prefabricate the segments in the segment factory first to form prefabricated components of specific specifications, then transport them to the construction site, assemble them in the shield machine, wait for the entire tunnel to be penetrated, and finally carry out support and assembly. Pipeline installation. [0003] Current status of related technologies in this field: [0004] The conventional pipeline layout method is mainly to fix the bracket on the segment, and then lay the pipeline. There are mainly two types of conventional bracket connection devices: one is to fix the bracket with post-anchor bolts, and the other is to use chute for fixing. However, ...

AI Technical Summary

Problems solved by technology

[0006] The pipeline support is fixed to the segment with a chute, the chute is anchored in the segment, and the bracket and the chute are fixed with T-head bolts. Under the action of large earthquake force, once the chute structure is damaged, it cannot be used

[0007] Regardless of the method of post-anchor bolting or chute fixing, when the joint is damaged under the action of the earthquake force, the pipeline will fall off, endangering the personal safety of the evacuated people

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