摘要
本文论证了两类大型高速滑坡滑动机理。首先,斜坡牵引失稳产生次生高能滑体,与先次失稳滑动的滑体发生碰撞,经过能量传递调整使之获得高速度。其次,滑体下覆岩土体内形成低摩擦次生滑动面,可以使滑体的高速滑动维持较长一段时间。
In this article, two types of mechanism of large high -velocity landslide are disclosed firstly. One of them is that a high sliding velocity is gained through energe redistributing to two parts of a landslide which failed in turn at different heights of a slope before. The other is that the high velocity may be maintained for a long time if a secondary sliding surface, which is low friction or even frictionless, is formed in low shear - strength earth or rock mass over which the landslide body covers.
出处
《中国地质灾害与防治学报》
CSCD
1992年第1期31-34,30,共5页
The Chinese Journal of Geological Hazard and Control
关键词
大型高速滑坡
滑动机理
次生滑体
能量传递
锁固原理
碎屑流机制
large high - velocity landslide, mechanism of sliding, secondary sliding body, transfer of energy, theory of locking -up, clastic flow mechanism
