小型水库工程大坝布置及稳定性分析OA

This paper presents a study on dam type selection and stability analysis for a small reservoir project under complex geo-logical conditions.Considering the dam site conditions,including a deep weathering layer and thick bedrock overburden,a compara-tive analysis of gravity dams,concrete face rockfill dams,and earth-rock dams was conducted.The homogeneous earth dam scheme was selected as the optimal choice,balancing reservoir capacity expansion and economic feasibility.Using AutoBank finite element software and the simplified Bishop method,seepage and stability analyses of the dam body under multiple operating conditions were performed.The results show that the seepage discharge is controllable,the phreatic line exit point is reasonable,and the anti-sliding stability coefficients of the dam slopes all meet the code requirements.Through the comparison and analysis of dam scheme alterna-tives,this study verifies the rationality of the homogeneous earth dam scheme and provides a design reference for similar small reser-voir projects.