摘要
随着煤矿开采强度与深度不断增加,煤层底板灰岩岩溶突水问题日益严重,逐渐成为煤矿防治水工作的重点。以新集二矿1煤层底板岩溶水为研究对象,利用基于GIS的AHP型脆弱性指数法对煤层底板岩溶突水进行脆弱性分区评价,根据统计分析计算出的分级阀值将研究区分为脆弱区(Ⅰ区)、较脆弱区(Ⅱ区)、过渡区(Ⅲ区)、较安全区(Ⅳ区)和相对安全区(Ⅴ区)等五个区域。研究结果表明:研究区的1煤底板的C_3^(1～4)灰、C_3^(4～13)灰和奥陶系岩溶突水区域自西向东,由相对安全区逐渐向脆弱区过渡,奥陶系岩溶突水脆弱性比太原组增大,且断层区域多为突水脆弱区。
With the increasing of coal mining intensity and depth,the karst water inrush problem of coal floor limestone becomes more and more serious,which gradually becomes the focus of coal mine water control.Taken karst water inrush from No.1 Coal Seam Floor in No.2 Xinji Coal Mine as the research object,vulnerability division assessment was made in karst water inrush area by the AHP model vulnerability index method based on GIS.According to graded threshold of the statistical analysis,research area was divided into vulnerable area(Ⅰarea),a fragile area(Ⅱarea),transition zone(Ⅲarea),and a safety zone(Ⅳarea)and relative safety(Ⅴarea)etc.The results show that relative security zone of water inrush area from C3^1~4,C3^4~13 and the ordovician limestone under coal floor is transited to fragile area from west to east gradually,and water inrush vulnerability of the ordovician karst is greater than that in Taiyuan group,and the fault areas are mostly of water inrush fragile areas.
作者
廉法宪
周学年
李磊
张继兵
许光泉
杨婷婷
张海涛
LIAN Fa-xian;ZHOU Xue-nian;LI Lei;ZHANG Ji-bing;XU Guang-quan;YANG Ting-ting;ZHANG Hai-tao(China Xinji Coal Energy Limited Company,Huainan Anhui 232001,China;Huainan mining Industry(group) Co.Ltd,Huainan Anhui 232001,China;School of Earth and Environment,Anhui University of Science and Technology,Huainan Anhui 232001,China)
出处
《安徽理工大学学报（自然科学版）》
CAS
2018年第5期47-56,共10页
Journal of Anhui University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(41572147)
关键词
底板岩溶
突水脆弱区
脆弱性指数法
karst from coal mine floor
vulnerable area of water inrush
vulnerability index method
