黔东南余凯路志留系翁项群地层滑坡分析

On Landslide in the Silurian Wengxiang Group on Both Sides of the Yukai Expressway in Southeast Guizhou

黔东南余凯路建设过程发生的滑坡多发育于志留系中上统翁项群地层,该套地层具有特殊的岩性特征和易滑结构面是其易产生滑坡的内在因素。从易滑结构面着手将翁项群地层滑坡归为顺层滑坡、切层滑坡和堆积体滑坡三种类型,分析了滑坡所在区域的环境地质特点和滑坡成因。结合翁项群地层滑坡勘察和处治经验,提出了勘察和处治设计应注意的问题。

Landslides on both sides of the Yukai Expressway in Southeast Guizhou occur in the Upper Silurian Wengxiang Group.This is related to its lithology and slip-prone plane.The landslides in the Upper Silurian Wengxiang Group may be divided into three type such as bedding landslide,slicing landslide and accumulation landslide.Environmental geological characteristics and landslide genesis of the area where the landslide occurred are discussed.The problems that should be paid attention to in investigation and treatment of landslides are put forward.