Pipe-jacking construction method

A construction method and pipe jacking technology, which is applied in earth drilling, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc., can solve problems such as poor construction effect, and achieve the effect of solving poor construction effect

Pending Publication Date: 2019-05-03
CHINA RAILWAY SHISIJU GROUP CORP
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a pipe jacking construction method to solve the

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Embodiment Construction

[0017] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0018] Such as figure 1 As shown, the embodiment of the present invention provides a pipe jacking construction method, including: excavating a working well, after the working well is completed, setting a first enclosure structure in the working well, and opening a first hole on the first enclosure structure mouth, the first orifice pipe is pre-embedded at the first orifice. The receiving well is excavated, and the receiving well and the working well are arranged at intervals. After the receiving well is completed, a second enclosure structure is set in the receiving well, and a second opening is opened on the second enclosure structure. The second orifice pipe is buried, and the second orific...

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Abstract

The invention provides a pipe-jacking construction method. Thepipe-jacking construction method comprises the steps that pipe-jacking construction measuring is performed and comprises the steps that alaser tester is used for detecting the jacking position and angle of a machine head of a pipe jacking machine, the detected result is compared with the expected effect, and a controller controls the heading direction and position of the machine head of the pipe jacking machine; after the jacking work is finished, slurry is replaced, an injection and installation hole is formed in a soil body of the outer wall of a steel pipe, a third slurry injecting pipeline is installed on the injection and installation hole, and the third slurry injecting pipeline is used for replacing thixotropic slurry onthe outer wall of the steel pipe by introducing cement mortar or fly ash cement mortar to improve the structural strength of the soil body at the steel pipe to prevent ground subsidence; and after the slurry replacement is completed, the third slurry injecting pipeline is removed and the injection and installation hole is subjected to injection and installation and blocking, and a sealing plate is disposed on the outer side of the injection and installation hole for sealing. The pipe-jacking construction method solves the technical problem that the construction effect of a pipe-jacking construction method in the prior art is poor.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation, in particular to a pipe jacking construction method. Background technique [0002] At present, the 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. 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. [0003] However, the construction effect of the pipe jacking construction method in the prior art is not good, which easily leads to large construction deviations. Contents of the invention [0004] The main purpose of the...

Claims

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Application Information

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IPC IPC(8): E21D9/00F16L1/028F16L1/036E21D11/10
Inventor 王焕李占先苏国举刘秀芝高艳花袁洋郭勇曹晶李腾
Owner CHINA RAILWAY SHISIJU GROUP CORP
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