Pipe jacking construction process

Abstract

The invention relates to a pipe jacking construction process. The pipe jacking construction process comprises the following steps: determining a jacking route and excavating a working well in the middle part position of the jacking route; using truss hoisting equipment to hoist an embedded steel plate and a supporting rod in the working well so that the embedded steel plate is stably attached to the bottom of the working well, and fixing the embedded steel plate at the bottom of the working well through installing nuts; making the rod end of the supporting rod abut against the hole wall of theworking well and fasten with an embedded bolt in the inner wall of the working well through a nut; hoisting a single unit pipe section to a material receiving carriage so that the pipe orifice of theunit pipe section corresponds to the hole of the well; and using a jack to move a push plate horizontally, and pushing the unit pipe section into the well hole to complete the jacking of the single unit pipe section until the unit pipe sections are arranged in the well. The pipe jacking construction process can significantly improve the turnover utilization rate of the machine head, and further can significantly improve the construction efficiency of the pipe jacking.

Description

technical field [0001] The invention relates to the technical field of engineering, in particular to a pipe jacking construction technology. Background technique [0002] Pipe jacking machines are often seen in conventional mud-water balance (earth pressure balance) construction. In the above-mentioned mud-water balance construction process, the pipe jacking machine presses the unit pipe joint and can only push in one direction at a time. This is because it is used for The cylinder body of the jack that pushes the unit pipe joint into the hole needs to be supported by the backrest. The backrest is set in the opposite direction of jacking. The above-mentioned backrest is mostly a concrete backrest. The bottom of the working well is made of concrete as a backrest, and it takes 2 to 3 days to ensure that the backrest is completely solidified, and then the jack is installed. Therefore, when the pipe jacking operation is performed on the unit pipe joint, the efficiency is low, an...

AI Technical Summary

Problems solved by technology

[0002] Pipe jacking machines are often seen in conventional mud-water balance (earth pressure balance) construction. In the above-mentioned mud-water balance construction process, the pipe jacking machine presses the unit pipe joint and can only push in one direction at a time. This is because it is used for The cylinder body of the jack that pushes the unit pipe joint into the hole needs to be supported by the backrest. The backrest is set in the opposite direction of jacking. The above-mentioned backrest is mostly a concrete backrest. The bottom of the working well is made of concrete as a backrest, and it takes 2 to 3 days to ensure that the backrest is completely solidified, and then the jack is installed. Therefore, when the pipe jacking operation is performed on the unit pipe joint, the efficiency is low, and the other end of the hole is implemented. During the pipe jacking operation of pipe joints, it is necessary to reinstall the track and re-adjust the machine head, which takes a long time and reduces the turnover rate of the machine head

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