重型设备异形箱体基础沉井法施工技术

Heavy equipments of the construction technology of the open caisson method in the abnormal box foundation

在地基条件复杂、地下水位高、周边建筑物分布密集的情况下,大型地下钢筋混凝土基础工程传统施工方法一般采用土方大开挖、基坑支护、现场整体浇筑施工,这样对已有建筑物和构筑物的正常使用造成影响甚至破坏。施工中必须针对工程的具体情况,研究可行的施工方案,保证结构的安全可靠与经济合理。本文介绍了某火力发电厂三期扩建工程1#机组补给水泵站异形箱体基础沉井法施工工艺。

In the complex foundation condition, high underground water level and building distributing densely in the around, the traditional construction method of large-scale underground reinforced concrete branching conduit of basic engineering commonly adopt earth excavation, foundation pit support, technology in concrete structure construction, so it can impact on normal use of existing buildings and structures. Based on the concrete engineering condition in the construction, we should research feasible construct project to ensure the safety of engineering structures and reasonable economy. The paper introduce terrain box of the construction technology of the open caisson method in the foundation in the 1^# set water pumping stations of the third period engineering of the thermal power plants.