Analysis of earth dam seepage in Huashigou road-dam project

Huashigou road-dam project is a homogeneous roller compacted concrete dam,the main features are storing floods and highway traffic.Dam and dam foundation seepage stability analysis are basic contents of dam safety evaluation,which relates to project their own stability and safety of human lives and properties.Firstly,judging seepage deformation types according to material properties of dam and dam foundation,and then,critical hydraulic gradient and allowing hydraulic gradient have been calculated by different methods.No seepage measures is designed and inclined and horizontal bedding anti-seepage measures are adopted,5 different water levels under total of 10 different operating conditions of the dam and dam foundation seepage are analyzed.The results show that the actual penetration of the points inside the dam and dam slope is less than allowing hydraulic gradient value minimum value of the materials,so dam and dam foundation seepage failure does not occur.