顺层滑坡变形破坏过程分析

为了分析风化岩质顺层滑坡的变形破坏过程,采用弹塑性接触有限元强度折减法,计算滑坡的整体稳定性系数和分析滑坡的稳定性以及变形破坏过程。结果表明,风化岩质滑坡的变形破坏主要是由滑体沿滑面的位移的不一致和塑性应变的不断发展引起的;采用弹塑性接触有限元算法可以更好地反映该类型滑坡所处的实际壮态及滑坡的滑动过程,为该类型滑坡稳定性的准确评价和预测预报提供可资借鉴的方法。

Analysis on the Process of Disintegration Deformation and Failure of Decomposed - rock Bedding Landslide

In order to analyze the process of disintegration deformation and failure of decomposed - rock bedding landslide, adopting contact elastic - plastic FEM strength reduction method, the integral stability coefficient of debris landslide was computed, and its stability and process of the deformation, disintegration and failure was analyzed. The research result shows that disintegration deformation and failure of decomposed - rock bedding landslide is mainly caused by disaccord slip - mass displacement along sliding plane, disaccord slip - mass sliding state along sliding plane and ever -developing plastic strain. Adopting the new method may better reflect the actual locating state and sliding process of decomposed - rock bedding landslide, and it may afford one method that can be used as a reference of stability analysis, evaluation and forecast of this type of landslide.