北京地区崩塌灾害成灾因子敏感性分析  

Sensitivity analysis of land-collapsing disasters' influencing factors in Beijing area

作　　者：任凯珍[1] 于淼[1] 王晟宇[1] 韩建超[1] 

机构地区：[1]北京市地质研究所,北京100120

出　　处：《人民长江》2017年第7期60-64,91,共6页Yangtze River

摘　　要：选取北京地区崩塌灾害现有调查成果作为研究对象,分析了北京地区崩塌灾害与地形地貌、地层岩性、构造、降水和人类活动之间的定性、定量关系。从2004~2015年突发地质灾害应急调查数据中选取了18起突发地质灾害作为研究案例,采用主成分分析法,对崩塌灾害成灾因子敏感性进行分析,得出崩塌灾害成灾因子敏感性由大到小排序为节理裂隙、地形坡度、人类工程活动、降水和岩性。研究成果可为今后北京地区突发地质灾害的防治提供依据。Based on the existing investigation results of land - collapsing disasters in Beijing area, we analyzed the qualitative and quantitative relationships between disasters and topography, stratum lithology and structure, rainfall and human activities. We selected 18 sudden geological disasters from geological disaster emergency investigation data during 2004 -2015 as examples and analyzed the sensitivity of land - collapsing disasters＇ influencing factors by principal component analysis method. The results show that the sensitivity order of disaster influencing factors is joint fissure, topographic slope, human engineering activities, precipitation and lithology. The results can provide basis for the prevention of sudden geological disasters in Beijing area.

关 键 词：成灾因子 主成分分析 敏感性 崩塌灾害 北京 

分 类 号：P642[天文地球—工程地质学]