煤田地质与勘探2017，Vol.45Issue(5)：112-120,9.DOI:10.3969/j.issn.1001-1986.2017.05.020
厚黄土与煤炭采空区地质灾害易发性评价
Geological hazard susceptibility assessment in thick loess and gob
摘要
Abstract
Distribution area of thick loess in Tongchuan City is cut by valleys,broken gully and gully loess,loess landslide and rock fall hazard develop extremely;also located in Weibei coalfield,coal mine goaf has caused many geological hazards such as ground fracture and collapse.The interaction of the two aggravates the occurrence of urban geo-hazard.Through 1:50 000 environment geological survey in Tongchuan City,based on information model,the evaluation index system of loess landslide,collapse and goaf deformation was established.The index of evaluation of geo-hazard susceptibility in complex area is divided into ground index,underground index and environmental factor index,the weight of index is 0.3,0.3 and 0.4 respectively,after GIS analysis and calculation,we try to solve the complex and incompatible factors of disaster-causing factors in the evaluation of geological hazards.And it is considered that in the thick loess of coal-mined-out area,because of the existence of collapsible loess,the surface deformation is sensitive to the mining depth-thickness ratio,and the norm deformation characteristic value is clearly small.关键词
地质灾害/易发性评价/厚黄土/煤炭采空区/信息量模型Key words
geological hazard/susceptibility assessment/thick loess/coal mine goaf/information model分类
天文与地球科学引用本文复制引用
谭新平,徐张建,王小秋,卫一华,董鹏伟..厚黄土与煤炭采空区地质灾害易发性评价[J].煤田地质与勘探,2017,45(5):112-120,9.基金项目
陕西省科技统筹创新工程计划项目(2014KTDZ03-01-01) （2014KTDZ03-01-01）
关中盆地城市群城市地质调查项目(12120114056901)Science and Technology Co-ordination Innovation Program Plan Project of Shaanxi Province(2014KTDZ03-01-01) （12120114056901）
Geological Survey of Urban Agglomeration in Guanzhong Basin(12120114056901) （12120114056901）
