循环水排水沟道由于承受内水压力,在可能产生不均匀沉降的两种地基土壤交界处或通过铁路、公路、堤防和其他固定建筑物的两端伸缩缝破坏发生漏水现象.通过对某电厂循环水排水沟道的变形计算、橡胶止水带性能分析及内力计算,分析循环水排水沟道在软弱土地基中受力特点及漏水原因,为类似工程提供设计及施工参考. Due to the internal water pressure, the circulating water drainage channel is damaged by water leakage at the interface between the two types of soil where uneven settlement may occur or through expansion joints at both ends of railways, highways, embankments and other fixed structures. Deformation calculation of recirculating water drainage channel, performance analysis and internal force calculation of rubber water stop, analysis of stress characteristics and leakage reasons of recirculating water drainage channel in soft soil foundation, and providing design and construction reference for similar projects.