A rapid construction method for composite joints of non-precipitation large-diameter winding pipes

A construction method and large-diameter technology, which are applied in water conservancy projects, sewer pipeline systems, artificial islands, etc., can solve the problems of water seepage and leakage at the pipe body interface, and the connection between the inspection well and the pipe mouth is not tight, so as to achieve lightweight material quality and avoid manhole covers. Subsidence, damage reduction effect

Active Publication Date: 2021-05-14
NANTONG UNIVERSITY
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Problems solved by technology

[0003] In view of the above problems, the present invention provides a fast construction method for composite joints of large-diameter winding pipes without precipitation, so as to solve the problems of water seepage and leakage at the joints of pipe bodies when there is no precipitation condition, and problems such as the connection between the inspection well and the nozzle is not tight.

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  • A rapid construction method for composite joints of non-precipitation large-diameter winding pipes
  • A rapid construction method for composite joints of non-precipitation large-diameter winding pipes

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[0030] The present invention will be further described below in conjunction with specific embodiments. It should be pointed out that the following embodiments are only explanatory descriptions of the present invention in the form of examples, but the protection scope of the present invention is not limited thereto. Equivalent replacements made by the skilled person to the present invention based on the spirit of the present invention all fall within the protection scope of the present invention.

[0031] refer to figure 1 with figure 2 , a rapid construction method for composite joints of non-precipitation large-diameter winding pipes disclosed by the present invention, comprising the following steps:

[0032] S1. Pipe trench excavation

[0033] According to the design height of the trench, select the grading coefficient for grading excavation. The slope is preferably 1:0.5, and the width of the working face is ≥0.3m. Stone preparation to two meters away from the side of t...

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Abstract

The invention discloses a rapid construction method for a composite interface of a large-diameter winding pipe without precipitation, including pipeline grooves, cushion laying, pipeline installation, node acceptance, sand and gravel backfill, inspection well fabrication and installation, pipe inner interface welding, earthwork backfill and acceptance. The present invention provides a rapid construction method for composite joints of non-precipitation large-diameter winding pipes, which is suitable for situations where groundwater discharge conditions are not available, ensures the strength of the pipe joints, facilitates installation, reduces the amount of masonry, achieves the purpose of saving materials, and solves the problem at the same time Solved the problem that the manhole cover of the inspection well is easy to settle.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a rapid construction method for a composite interface of a large-diameter winding pipe without precipitation. Background technique [0002] In municipal public works, large-diameter (diameter 1200mm-2000mm) rainwater pipelines on main roads often use reinforced concrete pipes. In the middle and lower reaches of the Yangtze River, the underground constant water level is relatively high, and the foundation of some main pipes is below the groundwater level. It is necessary to use open ditch drainage combined with light well point precipitation method to reduce the groundwater level to ensure the quality of foundation pouring and pipeline joint construction. The construction period is long and the construction There are many restrictive conditions, and double-wall corrugated pipes or PE solid-wall pipes are used instead of concrete pipes to speed up construction, but th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/04E03F3/06E02D29/12
Inventor 成军蒋光明吴锡东沈强儒戴卫阳何思涛康新春邹永远崔健
Owner NANTONG UNIVERSITY
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