巨厚含水层下厚煤层综放开采覆岩破坏规律与涌(突)水危险性研究  

Study on Law of Overburden Failure and Water Inrush Risk by Fully Mechanized Top Coal Caving under Thick Confined Aquifer

作　　者：王毅 马壮 王宏涛 白宇 王柯[2] 陈伟[2] WANG Yi;MA Zhuang;WANG Hongtao;BAI Yu;WANG Ke;CHEN Wei(SHCCIG Huangling Jianzhuang Mining Co.,Ltd.,Huangling 727300,China;Xi′an University of Science and Technology,Xi′an 710054,China)

机构地区：[1]陕西煤业集团黄陵建庄矿业有限公司,陕西黄陵727300 [2]西安科技大学,西安710054

出　　处：《煤炭技术》2025年第4期130-137,共8页Coal Technology

基　　金：国家自然科学基金项目(41807192)。

摘　　要：目前,建庄煤矿主要开采煤层为4^(-2)煤层,一般埋深450~730 m,属埋藏深、大采高的煤层,且使用综采放顶煤采煤法。以建庄煤矿216工作面为例,对工作面覆岩“三带”发育高度进行了分析,对冒裂安全性进行了分区;选取了含水层厚度、单位涌水量、渗透系数、砂地比、砂泥比、砂泥层数比等6个主控因素,集成层次分析法与变异系数法计算了组合权重,对含水层富水性进行了分区,通过叠加2个分区图对涌(突)水危险性进行了研究。结果表明:Ⅰ区主要分布于井田南和北部,Ⅱ区主要分布于矿井的中南部和东部,Ⅲ区主要分布于井田的中部,其余为Ⅳ区。At present,the main coal seam of Jianzhuang coal mine is 4^(-2) coal seams,which are generally buried at a depth of 450-730 m,which is a coal seam with deep burial and large mining height,and the fully mechanized top coal mining method is used.Taking the 216 working face of Jianzhuang coal mine as an example,the development height of the"three zones"of the overlying rock of the working face is analyzed,and the cracking safety is partitioned.Six main controlling factors,including aquifer thickness,unit water inflow,permeability coefficient,sand-to-ground ratio,sand-mud ratio,and sand-mud layer ratio,were selected,and the combined weights were calculated by integrating analytic hierarchy process and coefficient of variation method,and the aquifer water richness was partitioned,and the water inrush hazard was studied by superimposing two partition maps.The results show that Zone Ⅰ is mainly distributed in the south and north of the well field,Zone Ⅱ is mainly distributed in the south-central and eastern parts of the mine,Zone Ⅲ is mainly distributed in the middle of the well field,and the rest is Zone Ⅳ.

关 键 词：建庄煤矿 富水性指数 层次分析 变异系数法 突水危险性 

分 类 号：TD745[矿业工程—矿井通风与安全]