紫江砌石拱坝设计  

Design of Zijiang Masonry Arch Dam

作　　者：李宗樾[1] 

机构地区：[1]贵州省大坝安全监测中心,贵州贵阳550002

出　　处：《广东水利水电》2014年第3期70-76,共7页Guangdong Water Resources and Hydropower

摘　　要：紫江水电站拦河坝原设计的重力坝方案存在地质缺陷,经补充地勘工作及综合比较,对大坝设计进行复核调整,推选出混凝土砌石拱坝为施工图设计方案。设计大坝为C15混凝土砌石抛物线变厚双曲拱坝,其对地形条件适应性好,有效解决了坝体应力及稳定问题;采用坝体自防渗,降低施工难度、缩短施工工期;为提前发电,采取分期蓄水。取得了良好的经济效益及社会效益。Geohogical defects exist in the original design of growing dam projict for Zijiang hydropowes station .After geological ex-ploration work and comprehensine comparison , adjustment to the design has been made , finally masonry arch has been recommand-ed to be the construction scheme.Because of Zijiang hydropower station of C 15 concrete masonry parabolic thick double -curvature arch dam, stress and stability problems of dam body seepage prevention has been effectively solved , construction difficult reduced , the construction period shortened;for the earlier generation , impounding in phases .Achieved good economic and social benefits .

关 键 词：砌石拱坝 抛物线 自防渗 分期蓄水 紫江水电站 

分 类 号：TV641.31[水利工程—水利水电工程]