基于脆弱性指数法的韩城矿区11号煤层底板突水危险性评价  

Risk assessment of water inrush of No.11 coal seam floor in Hancheng mining area on the basis of vulnerability index method

作　　者：代革联[1,2] 薛小渊 许珂[1] 牛超[1] 杨韬[1] 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]国土资源部煤炭资源勘查与综合利用重点实验室,陕西西安710054

出　　处：《煤田地质与勘探》2017年第4期112-117,125,共7页Coal Geology & Exploration

基　　金：国家自然科学基金项目(41472234);陕西省教育厅专项项目(16JK1502);西安科技大学青年教师培育基金项目(201607)~~

摘　　要：在全面分析韩城矿区地质与水文地质条件的基础上,应用相关因素分析方法,提出研究区煤层底板奥灰含水层突水的指标体系,并以多个典型煤矿为例,重点分析了受奥灰含水层威胁最严重的11号煤层底板突水的影响因素;构建了有效隔水层厚度、褶皱规模、含水层富水性、断层规模4个评价指标;采用脆弱性指数评价方法对11号煤层底板突水的危险性进行了分区。Based on the comprehensive analysis of the geological and hydrogeological conditions of the study area （Hancheng mining area）, this paper puts forward the index system of water inrush from Ordovician limestone aq-uifer in the coal seam floor by using the relevant factor analysis method. Taking several typical coal mines as ex-amples, the factors influencing water inrush from the No.ll coal seam floor the most threatened by the Ordovician limestone aquifer, are analyzed emphatically. Four evaluation indexes, which are the effective thickness of the con-fining bed, the scale of fold, the water content of the aquifer, and the scale of the fault, are constructed. The water inrush risk zoning map of the No.l l coal seam floor is obtained based on the vulnerability index method.

关 键 词：底板水害 奥灰突水 指标体系 危险性评价 

分 类 号：TD742[矿业工程—矿井通风与安全]