循环水泵房工程是沿海地区发电厂的配套工程,由于临近海边,循环水泵房基坑支护及止水成为循环水泵房施工关键技术,受岸边防护结构、水文条件、潮汐、波浪等制约,此类基坑临海侧支护一般采用重力式挡墙结构。本文通过某电厂循环水泵房基坑支护施工案例,介绍基坑重力式挡墙支护设计和施工。 Circulating water pumping station project is a supporting project of power plants in coastal areas. Due to the proximity of the sea, the support and sealing of circulating water pump house foundation pit has become the key technology of construction of circulating water pump room. Due to the constraints of shore protection structure, hydrological conditions, tides and waves, Such pit-shore support generally use gravity retaining wall structure. This article through a power plant circulating pump room foundation pit supporting construction case, introduces the foundation pit gravity retaining wall support design and construction.