Pipe jacking construction method for municipal sewage pipes

Abstract

The invention relates to a pipe jacking construction method for municipal sewage pipes, and the construction method is suitable for municipal sewage pipe construction of short distance and short construction period, and is suitable for a construction situation that the soil relief is complicated. Each of concrete pipes is always connected with the front end of a drill stem in a sleeving manner, and thereby, positioning is performed on the concrete pipes through the drill stem, and the condition that the concrete pipes skew and soil suddenly collapses is reduced, so that the concrete pipes runthrough a receiving well more easily along a projected route; with the cooperation of a reamer and high-pressure water guns, the efficiency of excavating and transporting earth in the concrete pipes is increased, and thereby, the overall efficiency of pipe jacking construction is increased, and the construction period is shortened; and the pipe jacking construction method is suitable for the construction situation that the distance is short, geology is relatively complicated and the soil supporting force is relatively weak.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation technology, in particular to a construction method for pipe jacking of municipal sewage pipelines. Background technique [0002] The current pipe jacking construction method is a non-excavation construction method, through which the pipeline can be buried with little or no excavation. When the pipe jacking construction method is working, the jacking force generated by the pipe jacking machine is used to overcome the friction between the pipe and the surrounding soil, so as to push the pipe into the soil layer according to the designed slope and transport the earth away. Push the tool pipe or pipe jacking machine from the working pit through the soil layer to the receiving pit for hoisting. With the work of the pipe jacking machine, the pipe will pass through the soil layer from the working well and enter the receiving well. The pipeline is buried between the two pits immediately after t...

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Problems solved by technology

[0003] However, in actual construction, due to the differences in the geographical environment of the construction site, it is more troublesome to implement pipe jacking construction in many places, such as the quicksand soil with loose soil, poor stability of the machine head after jacking, and the machine head is prone to appear during pipe jacking. The problems of displacement and pipe jacking deviation, and the pipes are easily damaged, which brings a lot of inconvenience to the pipe jacking construction and reduces the construction efficiency, so there is room for improvement

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