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运用模型实验,在保持下滑力不变的情况下,通过固有振动频率对滑坡内部的黏结力、摩擦力等抗滑力指标进行分析.通过在弱稳定阶段中实际静摩擦力是否达到最大静摩擦力的方法,科学地判识滑体的稳定情况.结果表明:计算的摩擦力可以有效分析滑坡在弱稳定阶段期间的安全性,并证明固有振动频率监测比位移监测更加敏感.同时,固有振动频率的监测可对滑坡损伤做出定量判断,并可以评估滑坡静摩擦力指标,从而实现扰动后滑坡的安全评价.
By using the model experiment, the slip resistance index of the landslide interior is analyzed by the natural vibration frequency while keeping the sliding force constant, and whether the actual static friction force reaches the maximum static friction force in the weak stable phase The results show that the calculated friction can effectively analyze the safety of the landslide during the weak stabilization phase and prove that the monitoring of the natural frequency is more sensitive than that of the displacement monitoring.At the same time, Monitoring can make quantitative judgments of landslide damage, and can assess landslide static friction index, in order to achieve safety assessment of landslides after disturbance.