Assembling method of shield pipe ring structure

Abstract

The invention relates to a shield pipe ring structure and an assembling method thereof, which are used for assembling a non-standard pipe ring with a width larger than the standard pipe ring during the assembly process of the standard pipe ring; including supporting the top on the assembled standard pipe ring The hydraulic cylinder is retracted to form a construction space between the assembled standard pipe ring and the hydraulic cylinder; the segments of the non-standard pipe ring are assembled in the construction space to form a ring structure with a wedge-shaped opening at the top; the capping block is divided into Front capping block and rear capping block; place the front capping block at the corresponding wedge-shaped opening in the construction space and lean against the assembled standard pipe ring, and the retracted hydraulic cylinder resumes extending to the side of the front capping block; top The hydraulic cylinder supported on the ring structure and the side of the front capping block is pushed forward for a set distance in the direction of tunnel excavation; the hydraulic cylinder at the front capping block is retracted to form an assembly space at the front capping block; the rear capping block is placed In the assembling space and against the front capping block, the hydraulic oil cylinder recovers and stretches to the rear capping block to complete the assembly.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a shield pipe ring structure and an assembling method thereof. Background technique [0002] In the construction of underground rail transit projects, the shield tunneling method uses the hydraulic cylinder to push the shield cutter head to cut the soil and excavate forward, and then the hydraulic cylinder at the segment assembly position is temporarily retracted for segment assembly. Usually, each complete pipe ring is composed of several standard block segments, two adjacent block segments and one capping block segment. The top block segment is wedge-shaped, and is inserted into the gap formed by the left and right adjacent segment segments along the tunnel axis direction by the segment assembly machine. [0003] Sometimes it is necessary to open transverse holes on the side wall of the pipe ring due to the setting of communication channels or other engineering requirement...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a shield pipe ring structure and its assembly method, and solve the problem of assembling a wider non-standard pipe ring in a local area of ​​the tunnel in the prior art if the original shield equipment is used. There will be a problem that the jacking stroke of the hydraulic cylinder cannot meet the large assembly space requirements of the capping block segments

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