System for tube push bench to go out of starting well and unkenneling construction method of tube push bench

Abstract

The invention provides a system for a tube push bench to go out of a starting well. The system comprises a space enclosing structure for forming the starting shaft, lining walls arranged on the inner wall of the space enclosing structure, a bottom plate arranged at the bottom of the starting shaft, a lifting jack and a retaining wall, wherein the space enclosing structure adopts an SMW (Soil-cement Mixed Wall) construction method pile, the retaining wall is vertically arranged in the starting shaft, door openings through which the tube push bench passes are correspondingly formed in the retaining wall and the lining wall at one side of the space enclosing structure; the horizontal distance between the two adjacent door openings is less than the length of the tube push bench; and the lining wall at the other side of the space enclosing structure is provided with the lifting jack which is used for jacking the tube push bench; and a region formed by the retaining wall, the lining walls, the bottom plate and the tube push bench is filled with reinforcing soil mass. The invention provides a device and a method which can relatively economically and conveniently provide a soil mass condition for the smooth unkennelling of the tube push bench.

Description

technical field [0001] The invention relates to the field of building construction, in particular to the field of pipe jacking construction. Background technique [0002] During the construction of the pipe jacking project, before the pipe jacking machine goes out of the hole, it is necessary to reinforce the soil within a certain range in front of the starting hole. Sometimes due to pipelines, traffic, greening, etc., the soil in front of the starting hole cannot be reinforced or the soil in front of the starting hole cannot be reinforced within the required time, resulting in the pipe jacking machine being unable to exit the hole . In order to reinforce the soil in front of the starting hole so that the pipe jacking machine can exit the hole safely and smoothly, sometimes it is necessary to change the location and size of the starting shaft, which may affect the use function and cost of the project; sometimes it is necessary to wait for the pipeline The soil reinforcemen...

AI Technical Summary

Problems solved by technology

Sometimes due to pipelines, traffic, greening, etc., the soil in front of the starting tunnel cannot be reinforced or the soil in front of the starting tunnel cannot be reinforced within the required time, resulting in the pipe jacking machine being unable to exit the tunnel

In order to reinforce the soil in front of the starting hole so that the pipe jacking machine can exit the hole safely and smoothly, sometimes it is necessary to change the position and size of the starting shaft, which may affect the use function and cost of the project; sometimes it is necessary to wait for the pipeline , traffic, greening and other issues are resolved before the soil reinforcement in front of the starting hole, which may seriously affect the construction period

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