Pipe curtain method comprehensive pipe gallery construction method

By reinforcing and dividing the irregular end areas and setting up support structures in the pipe jacking construction, the problem of non-vertical ends in the pipe jacking tunnel construction was solved, thus improving the construction quality and speed of the integrated utility tunnel.

CN117488867BActive Publication Date: 2026-07-21TWENTY METALLURGICAL GRP (SHENZHEN) CONSTR DEV CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TWENTY METALLURGICAL GRP (SHENZHEN) CONSTR DEV CO LTD
Filing Date
2023-11-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When constructing integrated utility tunnels using the pipe jacking method, it is impossible to guarantee construction quality when the end of the tunnel is not perpendicular to the working shaft.

Method used

The irregular end is placed on one side of the receiving well, the area of ​​the irregular end is reinforced, and the pipe gallery is divided into three chambers. The pipe curtain is constructed from the launching well to the receiving well. High-pressure jet grouting piles are used to reinforce the area above the center line. Support structures are set up, including the first, second and third steel frames. The gradually inclined second steel frame is connected to the third steel frame to ensure that each chamber is constructed through.

Benefits of technology

Even if the irregular end is not perpendicular to the pipe gallery channel, the construction quality can be guaranteed, and the construction speed and ease of operation can be improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117488867B_ABST
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Abstract

The application provides a pipe curtain method comprehensive pipe gallery construction method, which comprises the following steps: a reinforcing step, in which a special-shaped end head is arranged on one side of a receiving well, and the soil in the special-shaped end head area is reinforced; a pipe curtain construction step, in which the pipe curtain is constructed from a starting well to the receiving well of the pipe gallery; and a chamber construction step, in which the pipe gallery is divided into three chambers, the two side chambers are constructed first, and then the middle chamber is constructed, and each chamber is constructed from the starting well to the receiving well. In the application, the special-shaped end head is arranged on one side of the receiving well, the soil in the special-shaped end head area is reinforced, then the pipe curtain is constructed from the starting well to the receiving well of the pipe gallery, and the three chambers of the pipe gallery are constructed respectively, and each chamber is constructed from the starting well to the receiving well. Therefore, the construction of the comprehensive pipe gallery can be ensured, the construction of the special-shaped end head area can be ensured even if the special-shaped end head is not perpendicular to the pipe gallery passage, the construction quality of the comprehensive pipe gallery is effectively improved, and the operation is simple and convenient to implement.
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