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Tunneling construction method of pipe-jacking machine

A construction method and technology of pipe jacking machines, which are applied in earthwork drilling, mining equipment, tunnels, etc., can solve problems such as poor tunneling construction effects of pipe jacking machines, and achieve the effect of solving poor construction effects and improving construction effects

Pending Publication Date: 2019-05-17
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 tunneling construction method of pipe jacking machine to solve the problem of poor tunneling construction effect of pipe jacking machine in the prior art

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Embodiment Construction

[0016] 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 in conjunction with examples.

[0017] An embodiment of the present invention provides a tunneling construction method of a pipe jacking machine. The tunneling construction method of the pipe jacking machine includes: predicting and calculating the tunneling parameters of the pipe jacking machine according to the buried depth, geological conditions and environmental conditions of the pipe jacking machine; When the pipe machine is working, monitor the ground settlement and deformation, and verify the predicted excavation parameters according to the monitoring results; the excavation parameters include the earth pressure value, and the theoretical calculation formula of the earth pressure value is as follows: P 0 =K×γ×H, this formula is the classic formul...

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Abstract

The invention provides a tunneling construction method of a pipe-jacking machine. The tunneling construction method of the pipe-jacking machine comprises the following steps: performing prediction calculation on tunneling parameters of the pipe-jacking machine according to a burying depth of the pipe-jacking machine, a geological condition and an environmental condition; monitoring ground settlement and deformation conditions during working of the pipe-jacking machine, and verifying the predicted tunneling parameters according to a monitoring result, wherein the tunneling parameters comprise asoil pressure value; a theoretical calculating formula of the soil pressure value is as follows: P0=K x gamma x H, where P0 is a theoretical calculating value of front soil pressure of the pipe-jacking machine, K is a lateral pressure coefficient of soil, gamma is the volume weight of the soil, and H is an influence depth of pipe jacking; an actually adopted soil pressure value is P, a prepared pressure is P1, and a calculating formula of an actual soil pressure value is: P=P0+P1. According to the tunneling construction method of the pipe-jacking machine, provided by the invention, the problem of poor tunneling construction effect of the pipe-jacking machine in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of trenchless construction, in particular to a tunneling construction method of a pipe jacking machine. Background technique [0002] At present, the pipe jacking construction technology is a non-excavation construction method, through which the pipeline can be buried with little or no excavation. When the pipe jacking construction process 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 tunneling construction of the pipe jacking machine in the prior art is not good, and it is easy to cause large construction deviations. Conte...

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Application Information

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IPC IPC(8): E21D9/00E21D9/08E21D9/06E21D9/093
Inventor 李占先韩仲慧王可用刘小果路刚袁洋郭勇曹晶李腾
Owner CHINA RAILWAY SHISIJU GROUP CORP
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