Pushing device of self-compaction reinforcing and anti-seepage pilot pipe and use method thereof

Abstract

The invention discloses a pushing device of a self-compaction reinforcing and anti-seepage pilot pipe and a use method thereof; According to the pushing device of the self-compaction reinforcing and anti-seepage pilot pipe and the use method thereof, compaction plates are arranged on the inner side of the front end of the pilot pipe fully circularly or locally; the compaction plates can rotate around a rotating shaft so as to change angles between the compaction plates and the pilot pipe; wedge-shaped gaps exist between the compaction plates and the pilot pipe, and wedge-shaped rods capable of moving longitudinally along the pilot pipe are arranged in wedge-shaped gaps; screw rods which are welded on the wedge-shaped rods penetrate through screw holes with internal threads in fixed plates; the wedge-shaped rods can move longitudinally along the pilot pipe by screwing nuts on the screw rods; and angles between the compaction plates and the pilot pipes are 1 degrees to 15 degrees. The pushing device of the self-compaction reinforcing and anti-seepage pilot pipe and the use method thereof have the advantages that no water drops when the large-diameter pipe is pushed in a seepage stratum or a soft soil stratum, the soil in the pilot pipe is compacted through the compaction plates so as to achieve the reinforcing and anti-seepage purposes, so that the construction safety is good and the ground surface settlement is easily controlled.

Description

technical field [0001] The invention relates to the field of underground engineering construction, in particular to a self-compacting reinforcement and anti-seepage pilot pipe jacking device and a use method thereof. Background technique [0002] In the field of municipal and underground engineering construction, the application scope of pipe jacking method is more and more extensive. When carrying out large-diameter pipe jacking construction in permeable strata and soft soil strata, when pipe jacking operations are performed manually or semi-mechanically, water seepage and earthwork collapse are likely to occur at the front end of the pipe jacking, which brings risks to the pipe jacking construction. When the grouting method pre-reinforces the earthwork at the front end of the pipe jacking, it not only increases the direct cost of the project and prolongs the construction period, but also the pre-reinforced grouting grout easily wraps the pipe jacking, resulting in a sharp ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-compacting reinforcement and anti-seepage pilot pipe jacking in order to realize the large-diameter pipe jacking operation without precipitation, shorten the construction period of the pipe jacking operation, and ensure the safety of the large-diameter pipe jacking operation during the pipe jacking process. The pipe device and its use method solve the problems of self-compacting reinforcement and anti-seepage of the soil at the front end of the pipe head or in the pipe without precipitation and in the pipe jacking construction process

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