摘要
西霞院反调节水库工程属国内首次大规模采用土工膜防渗的大型水库工程,土工膜防渗面积大,其耐久性直接关系工程安全。在现场调查基础上,对西霞院反调节水库土石坝段土工膜相关监测数据进行全面、系统、深入分析,结合室内试验模拟不同影响因素下土工膜耐久性,采用有限元法分析土工膜缺陷部位和尺寸对土石坝渗流的影响,并采用线性加权法和层次分析法建立土工膜防渗安全评价指标体系对土工膜防渗安全性进行综合评价。土工膜防渗安全性评价结果表明,复合土工膜防渗安全性为正常。
Xixiayuan Anti⁃Regulating Reservoir Project is the first large⁃scale reservoir project using geomembrane for seepage control on the main stream of the Yellow River.The geomembrane has a large anti⁃seepage area and its durability is directly related to the safety of the pro⁃ject.Based on the field investigation,the monitoring data related to geomembrane of Xixiayuan Anti⁃Regulation Reservoir were comprehen⁃sively,systematically and deeply analyzed and the relationship between its dynamic change and external environmental factors was analyzed.Combined with the durability test of geomembrane under different factors simulated in the laboratory,the influence of different positions and sizes of geomembrane defects on the seepage of earth rock dam was analyzed by finite element method.The evaluation index system of geomembrane anti⁃seepage safety was established by using linear weighted method and analytic hierarchy process.Finally,suggestions for op⁃eration and management were given.The research has formed the technical theory with certain theoretical level and reference value,which provides successful experience for the further promotion and application of geomembrane in water conservancy projects.
作者
苏畅
谢宝丰
张凯
洪羽
王磊
SU Chang;XIE Baofeng;ZHANG Kai;HONG YU;WANG Lei(Yellow River Hydropower Development Corporation,Jiyuan 454681,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China)
出处
《人民黄河》
CAS
北大核心
2021年第12期131-134,138,共5页
Yellow River
基金
中央级公益性科研院所基本科研业务费专项资金项目(Y718007)。
关键词
复合土工膜
耐久性
防渗安全
西霞院反调节水库
composite geomembrane
durability
anti seepage safety
Xixiayuan Anti⁃Regulating Reservoir
作者简介
苏畅(1983-),男,河南民权人,高级工程师,主要从事水工建筑物运行维护管理工作;通信作者:张凯(1988-),男,安徽广德人,工程师,主要从事水库大坝安全评估与病险诊断工作,E⁃mail:kzhang@nhri.cn。
