| 摘要: |
| 根据黄河源水电站工程的具体情况,通过对两种不同防渗形式的典型断面进行渗流有限元计算分析,全面评价了黄河源水电站工程的渗流安全状况.计算结果表明:整个大坝防渗系统存在缺陷,库内水平防渗与"L"型垂直防渗连接部位未封闭,右岸坝段基础天然防渗条件差、防渗处理不彻底,导致坝后渗漏量大,且已发生渗透破坏,大坝渗透稳定性不满足规范要求.大坝渗流评价为"C"级,建议采取相应加固处理措施,并完善渗流监测设施. |
| 关键词: 黄河源水电站 水平防渗 垂直防渗 有限元 渗流安全分析 |
| DOI： |
| 分类号:TV698.2 |
| 基金项目:十一五国家科技支撑计划资助项目，南京水利科学研究院青年基金 |
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| Analysis on dam seepage safety of Huangheyuan hydropower station |
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SUN Wei-wei,ZHUANG De-li,ZHANG Shi-chen,ZHENG Hao-yao
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(Nanjing Hydraulic Research Institute,Nanjing 210029,China)
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| Abstract: |
| According to the specific circumstance of Huangheyuan hydropower project,through the analysis of the two different forms of the typical cross section′s finite element seepage,the seepage safety of Huangheyuan hydropower project is evaluated comprehensively.The results show that there are some defects in the dam seepage system.The joints between horizontal anti-seepage and L-shaped vertical anti-seepage are not closed.The natural seepage condition of the right bank dam basis is poor and anti-seepage treatment is not completely,which lead to large leakage and failure by seepage behind the dam,so the seepage stability of the dam does not meet the regulatory requirements.The grade of dam seepage is C,so appropriate reinforcement measures should be taken and the flow monitoring facilities should be improved too. |
| Key words: Huangheyuan hydropower station horizontal anti-seepage vertical anti-seepage FEM seepage safety analysis |
