The design and construction of upstream impervious layer of roller compacted concrete(RCC)dam is the key link of this kind of dam.The combination quality of roller compacted concrete(RCC)layer directly affects the impermeability of dam,which is the weak link of RCC dam.In this paper,the design of impervious layer of roller compacted concrete upstream,the choice of surface-aided impervious scheme,the performance of raw materials and construction points are studied.Finally,the design scheme of upstream impermeable layer of Shuangfengsi Reservoir dam is selected,the key points of construction are defined,and the smooth implementation of the project is ensured.
关键词
碾压混凝土重力坝/大坝防渗/水库
Key words
roller compacted concrete gravity dam/large dam seepage control/reservoir