滑移式崩塌稳定性分析

Analysis on Sliding Collapse Stability

崩塌是一种常见的地质灾害,对生产安全造成严重威胁。通过三维激光扫描崩塌边坡获取其变形特征,采用赤平投影法和极限平衡法分别对滑移式崩塌的稳定性进行定性、定量分析,得出在地震或暴雨工况下该崩塌稳定性较差;通过FLAC3D软件对崩塌治理前后进行数值模拟,提出使用“清危+锚杆+复绿+坡顶截水沟”防治措施可有效提高崩塌的稳定性。

Collapse is a common geological disaster that poses a serious threat to production safety. The deformation characteristics of the collapsed slope are obtained by 3D laser scanning. The stability of the sliding collapse is qualitatively and quantitatively analyzed by the red projection method and the limit equilibrium method respectively. It is concluded that the collapse stability is poor under earthquake or heavy rain conditions. The FLAC3D software is used to simulate the collapse before and after the collapse treatment. It is proposed that the control measures of “clearing the danger + anchor + re-green + slope top intercepting ditch” can effectively improve the stability of the collapse.