Study on the failure mechanism of high and steep slope considering the seepage pressure of reservoir water level

• DOI: 10.1063/5.0260213
• Publication Date: 2025-04-25T10:26:47Z
• Authors: Lu He; Dezhong Kong; Di Wu; Yuqi Shang; Gaofeng Song
• Keywords: Failure mechanism; Water pressure

In view of the multi-field coupling effects such as rainfall infiltration, reservoir water level (RWL) seepage, and fissure risk slope disaster increases sharply. This study takes an open-pit mine in China research object. Based on improved Green–Ampt model key objective, infiltration was by combining dynamic changes wet front depth slope. The proposed integrates Darcy's law mass conservation principle establishes mechanism between seepage stress fields. Numerical verification performed using comprehensive performance indicators, including Nash efficiency coefficient, root mean square error, relative standard deviation, absolute volume error. comparative analysis with existing models shows that has higher accuracy reliability predicting stability under rainfall-induced seepage. results emphasize role RWL rainwater pressure weakening mechanical properties through wetting softening effect. work provides theoretical support practical guidance for instability caused rainfall.