The invention discloses a pipeline removing and installing construction method in a narrow space. According to the construction sequence, the pipeline removing and installing construction method specifically comprises the steps of construction equipment, transportation and hoisting tool fabrication, pipeline removing, removed pipeline carrying, newly-built pipeline transportation, pipeline assembly and installation and test. According to the pipeline removing and installing construction method in the narrow space, pipelines which need to be replaced and pass through the narrow space are laid by adopting buttresses in the narrow space, the pipelines which need to be removed are laid at the lower layer of one side inside a tunnel, and the newly-built pipelines are laid at the upper layers ofpipe piers. The pipeline removing and installing construction method in the narrow space is mainly aimed at the technical deficiencies existing in current construction of laying and replacing the pipelines in the narrow space such as the long and narrow tunnel, the corresponding removing method is adopted for removing of the pipelines in the special environment, and in the situation of guaranteeing pipe removing safe operations, the rapid and effective removing of the pipelines inside the tunnel is realized; and meanwhile, the newly-built pipelines are transported to to-be-installed positionsby utilizing a trolley, and the pipelines are lifted to installation positions to be installed through a lifting device, so that the oil-conveying pipeline laying, transportation, welding and other process technical requirements are realized.
本发明公开了一种狭窄空间内管道拆除及安装施工方法,其按照施工顺序具体包括:施工装备、运输及吊装工具制作、管道拆除、拆除管道的搬运、新建管道的运输、管道的组对及安装以及试验,需更换的穿越狭窄空间的管道在狭窄空间内采用支墩敷设,需拆除管道敷设在隧道内一侧下层,新建管道敷设于管墩上层。本发明主要针对目前如狭长隧道的狭窄空间内敷设和更换管道施工存在的技术不足,对该特殊环境下管道的拆除采用相应的拆管方法,在保证拆管安全作业的情况下,实现隧道内管道的快速有效拆除;同时,利用小车将新建管道运至待安装位,并通过提升装置将管道提升至安装位进行安装,从而实现了狭长隧道内输油管道铺设、运输、焊接等工艺技术要求。
Pipeline removing and installing construction method in narrow space
一种狭窄空间内管道拆除及安装施工方法
13.11.2020
Patent
Elektronische Ressource
Chinesisch
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