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Construction method of corner compensation for large-diameter and large-curvature pipe jacking

A construction method and technology with large curvature, applied in the direction of pipeline laying and maintenance, pipe/pipe joint/pipe fittings, machinery and equipment, etc., can solve the problems affecting the construction process and construction quality, and the unilateral force between relays is easy to deform and deflect. It can achieve obvious economic and social benefits, short construction period and good airtight performance.

Active Publication Date: 2020-05-12
ZHEJIANG BAOTIAN ENVIRONMENT CONSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pipe jacking construction with large diameter and large curvature curve is an important project in pipe jacking engineering. At present, the relay room adjustment method is usually used in the construction process, and the control pipe jacking angle is hydraulically adjusted through the relay room of the pipe jacking machine; but the middle The adjustable deflection degree of the relay room is generally less than 0.2°. The one-sided force of the relay room is easy to deform, easy to leak slurry, and the construction period is long, and it is difficult to maintain the deflection angle after adjustment; pipe jacking projects are usually affected by different geographical environments. The adjustment range of pipe jacking in the prior art cannot meet the installation requirements of different geographical environments, thus affecting the entire construction process and construction quality

Method used

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  • Construction method of corner compensation for large-diameter and large-curvature pipe jacking
  • Construction method of corner compensation for large-diameter and large-curvature pipe jacking
  • Construction method of corner compensation for large-diameter and large-curvature pipe jacking

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Embodiment

[0032] The construction method of large-diameter and large-curvature pipe jacking angle compensation, the specific steps are as follows:

[0033] 1) Construction preparation: install the guide rail and backrest in the working well, do the work of measurement and lofting before construction, control the elevation of the guide rail and the height of the portal, adjust the position of the backrest steel seal door parallel to the portal, and pour concrete; Preliminarily break the door, and install water-stop flanges and double-layer water-stop rubber rings on the door ring; install internal guide rails in the door to connect with the guide rails in the working well; lift the pipe jacking machine and go down the well and place it on the guide rails. And try to be as close to the hole as possible; install the jack and jack bracket, and fix it with the steel door of the backrest; install the mud discharge system of the pipe jacking machine and the hydraulic system of the jack to furth...

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Abstract

The invention discloses a large-caliber large-curvature pipe jacking corner compensation construction method. The method comprises the first step of construction preparation, the second step of rightside rectifying jack extension, the third step of steel channel welding, the fourth step of right side rectifying jack retraction, the fifth step of steel plate plugging, the sixth step of gap closingand the seventh step of steel channel dismantling. The method has the beneficial effects that construction continuity is high, the construction period is short, the number of construction devices issmall, slight influences are caused to surrounding, and pollution is small; and the method is greatly improved in the aspects of safety ensuring, engineering quality, duration control, energy saving,environmental protection, labor protection and other aspects, and has remarkable economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a construction method for compensating the corner of pipe jacking with large diameter and large curvature. Background technique [0002] Pipe jacking construction with large diameter and large curvature curve is an important project in pipe jacking engineering. At present, the relay room adjustment method is usually used in the construction process, and the control pipe jacking angle is hydraulically adjusted through the relay room of the pipe jacking machine; but the middle The adjustable deflection degree of the relay room is generally less than 0.2°. The one-sided force of the relay room is easy to deform, easy to leak slurry, and the construction period is long, and it is difficult to maintain the deflection angle after adjustment; pipe jacking projects are usually affected by different geographical environments. The adjustment range of the pipe jacking in the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/06F16L1/028
CPCF16L1/028F16L1/06
Inventor 王静安吴添财王春成周旭康徐晓源吴子淼潘闽华王建华
Owner ZHEJIANG BAOTIAN ENVIRONMENT CONSTR CO LTD
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