摘要
以新疆水磨沟水库坝体防渗加固为例,计算坝基、坝体土的物理力学参数及渗漏量,得出坝体渗漏量较大,坝基无需处理;计算最佳复合土工膜厚度为0.2 mm,锚固形式为V型,防渗斜墙平均总厚度为1000 mm,其中上游砼护坡200 mm。经应用,该复合土工膜防渗斜墙效果显著,可为类似工程提供参考。
Composite geomembrane cutoff wall is one of the most widely used techniques for seepage control and reinforcement of reservoir dams.Taking the anti-seepage reinforcement of Shuimogou reservoir dam body in Xinjiang as an example,the physical and mechanical parameters and seepage amount of dam foundation and dam body soil are calculated.It is concluded that the seepage amount of dam body is large and the dam foundation need not be treated.The optimum thickness of composite geomembrane is calculated to be 0.2 mm,the anchorage form is V type,and the average total thickness of anti-seepage inclined wall is 1000 mm,in which the upstream concrete is used.The slope protection is 200 mm.The application shows that the composite geomembrane diaphragm anti-seepage diaphragm wall has remarkable effect and can provide some reference technical experience for similar projects.
作者
张臻
ZHANG Zhen(Ministry of Water Resources,Xinjiang Uygur Autonomous Region Water Resources and Hydropower Survey and Design Institute,Urumqi 830000,China)
出处
《水利科技与经济》
2020年第2期66-69,共4页
Water Conservancy Science and Technology and Economy
关键词
复合土工膜
防渗斜墙
水库大坝
防渗加固
分析
composite geomembrane
anti-seepage inclined wall
reservoir dam
anti-seepage reinforcement
analysis
