Mechanical pipe jacking construction process

A construction technique and pipe jacking technology, which is applied in mechanical equipment, pipeline laying and maintenance, pipes/pipe joints/fittings, etc., can solve problems such as large dependence on operators, high professional requirements of operators, and impact on construction quality, etc., to achieve Avoid the effect of jacking difficulties

Active Publication Date: 2020-06-05
广州坚磊建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned existing technical solutions have the following defects: during pipe jacking construction, generally a professionally trained operator operates outside the ground control room and carefully detects the entire operating system, observes the earth pressure, oil pressure, The position of the lase...

Method used

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  • Mechanical pipe jacking construction process
  • Mechanical pipe jacking construction process

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0048] refer to figure 1 , is the mechanical pipe jacking construction technique disclosed by the present invention, comprising the following steps:

[0049] Stakeout review: measure the lead point at the construction location, stake out, and perform position review to determine the well location.

[0050] Well construction: setting up light well points, excavating foundation pits with backhoes, constructing sand cushions and plain concrete cushions, making caissons in sections, sinking in stages, draining and digging, and sealing the bottom of caissons and floor pouring to complete the excavation of the working well and the receiving well.

[0051] Immediately after the foundation pit is formed, backfill and tamp it with coarse sand layer by layer, supplemented by watering, and compact it with a plate vibrator or frog ram to ensure the bearing capacity of ...

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Abstract

The invention relates to the technical field of pipe jacking construction, and aims to provide a mechanical pipe jacking construction process. The process comprises the following steps of lofting andrechecking; well construction; pipe jacking equipment and ground auxiliary facilities are installed; discharging the pipe jacking equipment out of the working well; a jacking axis is preset on the console, the position relation between a machine head of the pipe jacking equipment and the jacking axis is displayed in a laser point mode, and meanwhile a three-dimensional simulation model used for simulating the pipe jacking construction process is arranged in the application background; the application background obtains construction process data of the console in real time and inputs the construction process data into the three-dimensional simulation model, and the three-dimensional simulation model controls the application background to give an alarm; an operator adjusts the position of amachine head of the deviation correcting pipe jacking equipment until the position deviation between the laser point and the jacking axis is smaller than or equal to a preset value; pipe jacking equipment enters a receiving well; and jacking-in and soil-out device. The process has the effects of assisting an operator in finding the running direction of the machine head and adjusting the running direction of the machine head in time, so that the situation that the construction quality is influenced by personal errors during construction is reduced.

Description

technical field [0001] The invention relates to the technical field of pipe jacking construction, in particular to a mechanical pipe jacking construction technology. Background technique [0002] At present, pipe jacking construction is a kind of pipeline burying construction technology with no excavation or less excavation. It excavates the working well and the receiving well, and overcomes the friction between the pipeline and the surrounding soil by means of the jacking force generated by the jacking equipment in the working well. Push the pipeline into the receiving well 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. The pipe jacking construction uses the thrust of the main jacking cylinder and the relay room between the pipelines to push the tool pipe or roadheader from the working well through the soil layer to the receiving well for ho...

Claims

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Application Information

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IPC IPC(8): E21D9/10E21D9/00E21D9/12E21D11/10E21D11/38E21F17/12E21F17/18F16L1/028
CPCE21D9/004E21D9/10E21D9/108E21D9/12E21D11/105E21D11/38E21F17/12E21F17/18F16L1/028
Inventor 邝泳斌邓志光黄磊栋李智滔孙敏强朱志斌
Owner 广州坚磊建设有限公司
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