某古滑坡复活机理及变形研究

通过宝鸡某古滑坡的现场调查,并结合不同时期的勘察情况,分析了古滑坡的变形破坏过程和复活机理。运用理正和FLAC3D软件,以3种不同工况对滑坡稳定性进行评价,并对其结果进行对比,以此判断古滑坡稳定情况。同时,运用FLAC3D软件建立数值模拟模型,预测滑坡发展变化趋势和对危险性做出评价,其结果是古滑坡复活体在3种工况下,均处于不稳定状态,必须采取治理措施,以保安全。

Study on Revival Mechanism and Deformation of An Ancient Landslide

Based on the site investigation for an ancient landslide in Baoji, this paper, combining with the surveys in different periods, analyzed its deformation process and revival mechanism. With Lizheng and FLAC3D software, the landslide＇s stability in three cases were evaluated, then compared, and further judged. Simultaneously, a numerical simulation model was established with FLAC3D to predict the landslide＇s development trend and evaluate the risk thereof. As a result, the revived landslide under these three cases was in the state of instability and should be treated for the sake of safety.