一种免分段浮推接管过江沉管方法

By installing a work box and roller trolley on the shore, and using the buoyancy of the pipeline and airbags to gradually advance the pipeline, the problem of damage to the site and environment caused by the traditional water supply pipe immersion method is solved, and efficient and low-cost immersion construction is achieved.

CN116464834BActive Publication Date: 2026-07-17GUANGXI CONSTR FIRST CONSTR ENG GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI CONSTR FIRST CONSTR ENG GRP CO LTD
Filing Date
2023-04-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional submerged pipe installation for water supply requires a large site and multiple underwater welding operations, resulting in significant site occupation and severe damage to the riverbanks of municipal parks.

Method used

The non-segmented floating pipe connection method is adopted. By installing a work box and roller trolley on the shore, the pipe is gradually pushed forward using the buoyancy of the pipe and airbag. Welding is completed on the shore, avoiding water operations. A waterproof work box is used to prevent river water from entering, creating a dry working environment.

Benefits of technology

It reduces the need for site space, lowers engineering costs, and minimizes environmental impact, making it suitable for immersed tube construction in confined spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供一种免分段浮推接管过江沉管方法,属于市政、电力管道水下沉管领域,方法如下:在江或者湖两岸工作槽开挖,工作箱安装及回填挡水,在工作箱内和工作箱的前端安装滚轮小车,安装好工作支架等,工作支架作为设备吊装,后期管道安装使用,安装断环环形止水气囊,断环环形止水气囊放气,管道推进,断环环形止水气囊充气止水,安装焊接第二节管道,管道推进,断环环形止水气囊充气止水,安装焊接第三节管道,直至管道推到对岸,拆除工作箱,沉管,稳管,压力试验,回填完成。不需要水面拖运管道,工程需要驳船设备少造价低,不需水面上接管,减少水上作业,一次焊接完成,需要占用岸堤场地极少,对环境影响小,对岸堤破坏很小。
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