某电厂黄河岸边取水泵房沉井施工技术

沉井是在高水位地质条件或受场地限制时，所采用的一种地下结构施工方法，目前在南方地区应用较多，大型的沉井结构在北方地区特别是黄河岸边应用的相对较少．以某电厂黄河岸边取水泵房大型沉井工程为例，详细介绍了沉井下沉受力计算和沉井施工的关键技术，该工程采用围堰沉井方案，沉井分节预制、一次不排水下沉的施工方法，顺利地完成了沉井施工．相对传统的岸边取水泵房施工方法，缩短了施工工期，并为北方地区大型沉井施工提供了实例．

Construction technology of open caisson in water intake pumping station at the shore of Yellow River for a power plant

The open caisson is a shaft-like structures,is to take with disabilities rely on wells,with well body weight and other support measures designed to gradually sink to the intended elevation of the building ultimately form the basis of a form of deep foundation.The law is the geological conditions of high water or subject to venue restrictions,the use of an underground structure construction method,the current use of the south are more large-scale caisson structures in the north shore of the Yellow River regi...