Quick supporting method for cleaning blocked segments in pipe jacking

Abstract

The invention discloses a quick supporting method for cleaning blocked segments in pipe jacking. The quick supporting method includes the construction steps of planning out quantity and position of cleaning pipe joints according to needs for arrangement of each intermediate jacking station and installing the cleaning pipe joints among segments before pipe jacking construction; on the circumstancethat segments are blocked, installing one telescopic separating mechanism between each two tooling pipe joint and separating the tooling pipe joints from a spacing pipe joint through the telescopic separating mechanism; driving the blocked segments to move, connecting the tooling pipe joints with the corresponding spacing pipe joint through retraction of the telescopic separating mechanism; cleaning rock wall dregs at the backs of the segments which have been moved through cleaning equipment or manual manner, and transporting the collected dregs out of the construction site; installing a rocksupport arch ring to the cleaned rock walls through a support installation mechanism of the supporting device; starting a jacking mechanism at the end of each intermediate jacking station and jackingthe cleaned segments forwards. Compared with the prior art, the quick supporting method has the advantages of increasing construction speed of cleaning blocked segments in pipe jacking and lowering cost.

Description

technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to a quick support method for pipe jacking when encountering obstacles and getting rid of difficulties. Background technique [0002] In the long-distance and large-diameter pipe jacking construction in mountainous areas, the pipe jacking machine passes through different geology. During the advancement of the segment, it often passes through unfavorable geology, which causes the friction-reducing mud around the segment to fail, and loose slag is wrapped around the segment, increasing the Segment advancing resistance, when severe, causes the segment to fail to advance, and measures can only be taken to solve the problem of the segment being blocked. Existing treatment measures for getting rid of difficulties usually adopt cutting off part of the pipe joints, clearing the loose slag behind the segments, and implementing surrounding rock support. Surrounding rock sup...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a fast support method for pipe jacking in case of obstruction and escape, so as to solve the existing problems in the processing process of pipe jacking in case of obstruction and escape in the prior art. slow, and the cost of surrounding rock support is high

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