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:滑坡堵塞江河形成的天然土石坝是自然作用的产物 ,不同于人工土石坝。天然土石坝形成后有些存在几十年、几百年 ,有些形成后不久就溃决 ,这与坝体本身的性质和河水入流量有关。依据野外实测资料 ,论证了土石坝的稳定性主要是由土石坝的物质组成、几何形状和堰塞湖入流量等因素决定的 ,这一研究为天然土石坝的稳定性预测奠定了基础
: Landslides blocked The formation of natural earth dam is the product of natural effects, different from artificial earth dam. After the formation of natural earth-rock dams, some existed for several decades and several hundred years, some of them collapsed shortly after their formation, which was related to the nature of the dam itself and the river inflow. Based on the field data, it is demonstrated that the stability of earth-rock dams is mainly determined by the material composition, geometry and inflow of dammed lakes. This study lays the foundation for the stability prediction of earth-rock dams