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根据云南省龙江水电站近坝库岸边坡滑坡特点,为了对降雨与库水位共同作用下近坝库岸边坡滑坡有深入的了解,进行了降雨与库水位共同作用下边坡滑坡大型模型试验研究。试验结果表明:降雨是引起近坝库岸边坡滑坡的重要因素,降雨与库水位共同作用下近坝库岸滑坡有效应力减小,研究库水位以下边坡土体的抗剪强度减小;库水位作用使得边坡产生沉降和裂缝,边坡的滑坡是由降雨和库水位共同作用引起,库水位以下边坡土体水分入渗充分,边坡内部孔隙水压力较大,边坡易产生滑坡且滑坡规模较大,近坝库岸边坡滑坡属于浅层牵引式滑坡。
According to the characteristics of landslides near the dam banks of Longjiang hydropower station in Yunnan Province, in order to have a deep understanding of the landslides near the reservoir banks under the action of rainfall and reservoir water level, a large-scale model test of slope landslides under the action of rainfall and reservoir water level the study. The experimental results show that rainfall is an important factor causing landslide near the reservoir banks and the effective stress of landslides near the reservoir banks decreases with the joint action of rainfall and reservoir water level. The shear strength of soils below the reservoir water level decreases; The effect of reservoir water level causes the slope to be subsided and cracked. The landslide of the slope is caused by the joint action of rainfall and reservoir water level. The soil infiltration into the soil below the reservoir level is sufficient, and the pore water pressure inside the slope is relatively large, Landslides and landslides are large in size, and landslides near bank dam banks are shallow traction landslides.