基于位移动力学的堆积层滑坡稳定性评价参数及其应用研究  

Study on debris landslide stability assessment parameter based on displacement dynamic and its application

作　　者：陈为公[1,2] 贺可强 

机构地区：[1]青岛理工大学管理学院,青岛266520 [2]山东省地质环境与效应工程技术研究中心,青岛266033

出　　处：《青岛理工大学学报》2013年第1期1-4,共4页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(40872184);山东省自然科学基金资助项目(ZR2011DL002);教育部高等学校博士学科点专项科研基金资助项目(20113721110002)

摘　　要：堆积层滑坡由于其结构和物质组成的特殊性,传统的位移监测方法很难对其进行准确的预测预报.根据位移动力学原理,通过分析堆积层滑坡变形破坏的动力学机制和位移矢量的变化特征,提出以垂直位移方向率作为滑坡稳定性的评价参数和失稳判据,从坡体应力应变角度探讨了其理论本质及其用于滑坡变形评判的可能性,并通过对新滩滑坡监测数据的计算和分析,发现应用垂直位移方向率作为评价参数和判据所得的预测结果与滑坡的实际状况基本吻合,说明垂直位移方向率可以作为一种新的边坡稳定性的预测判据.Because of its particular structure and composition, it is difficult to predict and forecast exactly the landslide of debris by traditional methods of displacement monitoring. Based on the displacement dynamics theory in the paper, the dynamic mechanism of debris landslide deformation failure and variation characteristics of displacement vector are ana- lyzed, the method that the direction ratio of vertical-displacement was taken as evaluation pa- rameters of landslide stability and criterion for its instability is put forward, its essence of the theory and the possibility that the theory can be used to judge of landslide deformation are explored from the angle of stress-strain of the slope. By calculating and analyzing the da- ta about Xintan landslide, it is found that the predicting result by using the method above conforms to the actual situation. It is showed that the direction ratio of vertical-displacement can be a new criterion for slope stability prediction.

关 键 词：堆积层滑坡 垂直位移方向率 评价参数 判据 新滩滑坡 

分 类 号：P642.22[天文地球—工程地质学]