株树桥水库大坝严重渗漏原因分析_图文

1、收稿日期:2003-02-09作者简介:盛金保(1966-,男,安徽青阳人,高级工程师,硕士,主要从事大坝安全管理与评估研究.株树桥水库大坝严重渗漏原因分析盛金保,谢晓华,李雷(南京水利科学研究院,江苏南京210029摘要:根据设计、施工和现场检测资料,分析了株树桥水库钢筋混凝土面板堆石坝严重渗漏的原因.分析结果表明,面板垫层级配不良,过渡层不能起到反滤作用,基础防渗帷幕的截渗效果欠佳,使垫层承担了较大的作用水头而产生了渗透变形,加之坝体周边缝止水受破坏,面板脱空范围过大,使面板破裂、折断,均导致了大坝严重渗漏.关键词:垫层渗透变形;周边缝破坏;面板断裂;渗漏;面板堆石坝;株树桥水库中图分类号

2、:TV641.43文献标识码:A 文章编号:1009-640X (200304-0025-06Serious leakage analysis for Zhushuqiao DamSHENG Jin -bao ,XIE Xiao -hua ,LI Lei(Nanjing Hydraulic Research Institute ,Nanjing 210029,China A bstract :The causes for the serious leakage of the reinforced concrete face dam of Zhushuqiao Reservoir are ana

3、lyzed based on the design ,construction and field measured data .Results show that the poorly g raded cushion of the facing plate has little filter effect on the transition layer ,the effect of the impervious curtain of the foundation is poor .Owing to a big w ater head ,a seepage deformation occurs

4、 in the cushion ,the sealing devices in the peripheral joints are destroyed ,and some fac ing plates are overhead and break .All this leads to a serious leakage in the dam .Key words :seepage deformation of cushion ;failure of peripheral joint ;breakage of facing plate ;leakage ;facing rockfill dam ;Zhushuqiao Reservoir第4期2003年12月水利水运工程学报HY DR O -S C IEN C E A ND EN GIN EER ING No .4Dec .200326水利水运工程学报2003年12月 27第4期盛金保,等:株树桥水库大坝严重渗漏原因分析 28水利水运工