某高位滑坡的形成机制及灾害链治理分析

The formation machanism and disaster chain analysis of one high landslide

某高位滑坡上部滑动,顺坡形成碎屑流,后堆积于坡角公路,堵塞河道,形成一系列灾害。根据对该滑坡的研究,认为本滑坡具有多期次、分块滑动的特点,同时在滑动过程中由于下伏强风化破碎岩体,被扰动牵扯滑动,造成该滑坡为多级后退牵引式滑坡;剪出后的滑体物质在重力作用下沿坡面以碎屑流方式向下堆积于坡角河流右岸及河道内。该滑坡的失稳模式以及形成的威胁以灾害链的形式出现,对治理方案提出新的思考模式,对高位滑坡的治理有一定的现实指导意义。

The up slide of one high landslide formed the debris flow,then accumulated on the road of the slide foot.It blocked the river,and formed a series of disasters.According to the study to this landslide,the characteristics of multiple phased,chunked slides of this landslide have been proved in this article.The multistage backward traction landslide has been formed by disturbance drug caused by strong weathered rock mass during sliding;the cut off landslide substance accumulated down to the right bank of the river near the landslide foot and inside the river by the form of debris flow under gravity.The instability of the landslide,and the formed threaten appeared in the form of disaster chain pust forward new thing models to the treating plan and provides certain realistic directing significance to the high landslide treatment.