红峰水库大坝坝体结构研究与应用

Research and Application of Dam Structure of Hongfeng Reservoir

红峰水库大坝为混凝土面板堆石坝,通过放缓大坝上下游坡比、对下游堆石区河床覆盖层碾压、设置排水区等措施,以充分利用弃渣料、河床覆盖层料及坝基肩开挖料筑坝,解决取料场、弃渣场选择困难和弃渣料量不足的问题,达到风景名胜区内工程建设的要求。经现场试验和三维有限元分析计算,坝坡稳定和坝体及面板应力、应变满足规范要求,坝体结构设计新颖,体现了生态环保的现代水利工程设计理念。

Hongfeng reservoir dam is a concrete rock-fill dam with face slab.By slowing down the slope ratio of upstream and downstream of the dam,rolling the river bed overburden layer in downstream rock-fill area and setting up drainage area,the dam can be constructed by making full use of the discarding dregs,river bed overburden material and dam abutment excavation material,so as to solve the problems of difficult selection of material fetch yard and discarding dregs field and insufficient quantity of discarding dregs,and to meet the requirements of engineering construction in scenic and historical area.Through field tests and three-dimensional finite element analysis and calculation,the stability of dam slope and stress and strain of dam body and face slab meet the requirements of specifications.The design of dam structure is novel,which embodies the modern concept of ecological and environmental protection of water conservancy engineering design.