摘要
四川西部山区公路沿线地质灾害频繁发生,严重威胁着行人行车的安全。为了研究道路沿线地质灾害发育规律,基于ArcGIS平台对四川省道S216木里段沿线带状区域内的滑坡、崩塌的发育规律作了系统的分析。结果表明:研究区内85.38%的地质灾害发育在20°~50°的坡体中;断层、河流以及道路均会影响地质灾害的发育;研究区内70%的滑坡灾害分布在2000~2500m的高程内;崩塌在正北、北东、北西向的坡体中鲜有发育,滑坡在北西向以及正北向坡体中发育较少。研究成果可为区域内道路抢险、线路突发情况改线及灾害分区提供依据。
Geological hazards take place frequently along the highway in the western mountainous area of Sichuan Province. In view of this, we investigate systematically the development rules of landslides and collapses along the Muli county segment of Sichuan provincial highway S216 by using ArcGIS. Results reveal that 85.38% of the geological disasters in the study area develops in the slope body with a gradient ranging from 20 to 50 degrees. Faults, rivers and roads in the study area will all affect the development of geological disasters. Meanwhile, 70% of landslide in the study area distributes in the elevation range between 2 000 and 2 500 m. Collapse in the study area is rarely developed in slopes of true north, northeast and northwest aspects, while landslide slightly develops in slopes of northwest and true north aspects. The research achievements will offer basis for dealing with emergencies and disaster zoning in the study area.
作者
罗菲
任光明
李惠民
李源亮
LUO Fei;REN Guang-ming;LI Hui-min;LI Yuan-liang(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China)
出处
《长江科学院院报》
CSCD
北大核心
2019年第6期37-41,共5页
Journal of Changjiang River Scientific Research Institute
关键词
滑坡
崩塌
四川省道S216
地质灾害
岩性
ARCGIS
landslide
collapse
Sichuan provincial highway S216
geological disaster
lithology
ArcGIS
