Pipe jacking construction method and pipe pushing jack applied to method

A construction method and pipe jacking machine technology, applied in the direction of pipes/pipe joints/fittings, mechanical equipment, pipeline laying and maintenance, etc., can solve the problems of mud cost and difficulty increase

Active Publication Date: 2020-12-29
杭州市地下管道开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the related technologies mentioned above, with the jacking of the pipe jacking machine, the pipe jacking machine will gradually move away from the originating shaft and the position of mud preparation, resulting in an increase in the cost and difficulty of mud transportation

Method used

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  • Pipe jacking construction method and pipe pushing jack applied to method
  • Pipe jacking construction method and pipe pushing jack applied to method
  • Pipe jacking construction method and pipe pushing jack applied to method

Examples

Experimental program
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Effect test

Embodiment Construction

[0042] Attached to the following Figure 1-5 This application will be described in further detail.

[0043] refer to figure 1 , 2 , the pipe jacking machine is connected to the end of the pipe 4 closest to the receiving well 2, including the body 3, the mounting plate 5, and the soil stirring mechanism. The cross-sectional size of the pipe 4 is a large-section pipe with a size of 7.5m*5.4m. The soil-ploughing mechanism includes a soil-plucking blade 6 for crushing the soil body and a soil-plucking motor 7 for driving the soil-plucking blade 6 to rotate. The mounting plate 5 is vertically fixedly connected to the inside of the body 3 and is arranged away from the pipe 4. The thickness of the mounting plate 5 is arranged. Two sides of the body 3 separate the soil pressure bin for accommodating the soil-ploughing blade 6 and the accommodation bin for installing the soil-ploughing motor 7 , and the accommodation bin is in communication with the pipe 4 . The tiller blade 6 is l...

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PUM

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Abstract

The invention relates to a pipe jacking construction method. The method comprises the following steps of 1, hoisting a pipe, and enabling the pipe to be coaxial with a pipe pushing jack; 2, pushing the pipe, enabling the pipe pushing jack synchronously tunnel, mixing slurry during tunneling, and conducting grouting between the pipe pushing jack and a soil body; 3, enabling a main jacking oil cylinder to retract, transporting out redundant soil dug out by the pipe pushing jack, and hoisting subsequent pipes to start jacking; and 4, repeating the steps until the pipe pushing jack reaches the position of a receiving well. The method has the effect that after the pipe pushing jack is gradually away from a starting well, the grouting cost can be reduced. The invention further discloses the pipepushing jack.

Description

technical field [0001] The present application relates to the field of trenchless pipeline construction, in particular to a pipe jacking construction method and a pipe jacking machine used in the method. Background technique [0002] At present, pipe jacking construction is a non-excavation construction method, which is a pipeline burying construction technology that does not excavate or excavates less. Commonly there are pipe jacking excavated by squeezing soil and pipe jacking excavated by pipe jacking machine. [0003] The pipe jacking machine excavation pipe jacking is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipe and the surrounding soil, push the pipe into the soil according to the designed slope, and transport the earth away. After one section of pipe has been jacked into the soil layer, the second section of pipe will continue to be jacked. In order to reduce the friction between the pipe an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/036F16L1/06
CPCF16L1/036F16L1/06
Inventor 张伟光连珺宋雪红
Owner 杭州市地下管道开发有限公司
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