摘要
大瑞铁路大保段位于云贵高原西部边缘,著名的横断山脉南段,地势错综复杂。主要地质灾害崩塌、滑坡、泥石流,地质灾害的形成的本质因素是地形地貌、地层岩性、地质构造等;外部因素包括大气降水、植被破坏及人类工程活动等方面。
The Dabao segment of Darui railway is in the W margin of Yun-Gui plateau,the S part of famous Hengduan Mts,with very complex and various geomorphology.The main geological disaster includes collapse,slide and debris flow.The inner factors of geological disaster are geomorphology,lithologic character and geological structure,etc,whereas the outer ones include atmosphere precipitation,vegetation damage and man-induced engineering activities,etc.
出处
《云南地质》
2010年第2期185-189,145,共6页
Yunnan Geology
关键词
滇西纵谷地带
跨多个地象单元
地质灾害频发
云南大保段铁路.
Longitudinal Valley Area of W Yunnan
Composite Geomorphologic Unit
Frequent Geological Disaster
Dabao Segment Railway of Yunnan
