文档介绍：居乐水利枢纽重力坝设计
摘 要
本次设计内容为居乐水利枢纽坝型选择为混凝土重力坝
整座重力坝主要有非溢流挡水坝段溢流表孔坝段溢流底孔坝段和电站厂房坝段
挡水坝段最大断面的底面高程为190100米坝顶高程为198770米防浪墙高12米最大坝高为855m属高坝类型坝顶宽8米最优断面的上游坝坡坡率为102上游折坡点高程为195600米下游坝坡坡率为107下游折坡点高程197470m
溢流坝段最大断面的底面高程为190100米堰顶高程197808米溢流堰采用WES曲线设计直线段坡率为107反弧段半径取20米鼻坎高程取191200米上游坝坡坡率取102折坡点高程为195600米上游坝面与WES曲面用14椭圆相连
本枢纽溢流堰采用挑流方式消能挑角取250止水采用两道紫铜中间加沥青井的形式坝基防渗处理主要依据上堵下排的原则上游帷幕灌浆两道下游侧设置排水管
以非溢流挡水坝段为计算选择断面进行了抗滑稳定分析和应力分析分别采用单一安全系数法和可靠度理论法计算法进行计算最终验算满足抗滑稳定上游坝踵没有出现拉应力设计剖面合理可行
关键词非溢流坝 溢流坝 细部构造 地基处理
Abstract
This design content for the Jule project dam type selection for the concrete gravity dam
A gravity dam are mainly non overflow dam section of spillway dam spillway bottom hole dam and powerhouse dam section of Non overflow dam section of each of15 meters wide distributed in the dam powerhouse dam section ends each16 meters wide disposed near the right bank main riverbed outfit machine 3units the bottom orifice of each section of22 meters wide arranged in a powerhouse left main riverbed overflow section of each segment width 18meters is arranged in the house music river main river bed
Dam section of imum cross section of the bottom surface elevation of 1901meters at elevation of 198770meters12 meters high wall the dam height of 855m is a type of dam Crest width of 7meters the optimal section of the upstream dam slope rate of 102 the upstream slope angle point to 1956 meters elevation downstream dam slope rate of 107 the downstream slope angle point elevation197470m
imum section of overflow dam section of the bottom surface elevation of 1901 meters197808 meters height of weir weir use WES curve design straight slope rate of 107 reverse arc radius of18meters the nasal sill elevation1912meters the upstream dam slope rate and102 slope angle point elevation of 1956 meters the upstream dam surface and WES surface by 14 elliptic connected
The hub of overflow weir ski-jump energy dissipation by way of250 pick angle Stop usin