云南大瑞铁路大保段地质灾害特征与诱发因素  

THE CHARACTERISTICS AND FORMATION CONDITION OF GEOLOGICAL DISATER IN DABAO SEGMENT OF DARUI RAILWAY,YUNNAN

作　　者：杨爱春 任贵良 

机构地区：[1]云南南方地勘工程总公司,大理671000

出　　处：《云南地质》2010年第2期185-189,145,共6页Yunnan Geology

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.

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. 

分 类 号：P642.2[天文地球—工程地质学]