某古碎石土滑坡复活机制与稳定性研究

为研究某碎石土滑坡复活机制及主要诱发因素,通过工程地质分析、监测和数值计算,分析了其成因机制与发育规律,利用监测数据分析了滑坡位移与降雨量之间的对应关系,揭示了碎石土滑坡变形机制以及诱发因素,分析了降雨对碎石土滑坡稳定性的影响。得出以下结论:该滑坡是多期复合型滑坡,具有牵引破坏特征,且监测数据结果分析表明,滑坡变形与降雨具有较好的对应性,降雨是滑坡的主要诱发因素。运用研究结果对滑坡进行了稳定性分析,结果表明滑坡稳定性较好。

Study on revival mechanism and stability of an ancient debris landslide

In order to study the revival mechanism and its main inducing facors of a debris landslide，the genetic mechanism and development law of it are analyzed herein through the relevant engineering geological analysis，monitoring and numerical calculation，and then the corresponding relationship between the landslide displacement and rainfall is analyzed with the monitoring data concerned，from which the deformation mechanism and the inducing factors of the debris landslide are revealed，while the impact from rainfall on the debris landslide is analyzed as well. It is concluded that the debris landslide is a multi-stage composite landslide with the features of the retrogressive failure and the analysis made on the monitoring data shows that a better correspondence is there between the landslide deformation and rainfall，thus rainfall is just the main inducing factor of the landslide. The stability of the landslide is analyzed with the study result obtained herein and the result shows that the stability of the landslide is better.