基于沉积特征的松散含水层富水性评价方法与应用  

Water abundance assessment method and application of loose aquifer based on sedimentary characteristics

作　　者：武强[1] 王洋[1] 赵德康[1] 申建军[1] 

机构地区：[1]中国矿业大学(北京)国家煤矿水害防治工程技术研究中心,北京100083

出　　处：《中国矿业大学学报》2017年第3期460-466,共7页Journal of China University of Mining & Technology

基　　金："十三五"国家重点研发计划项目(2016YFC0801800);国家自然科学基金项目(41272276;41572222;41430318)

摘　　要：为解决传统富水性评价中遇到的水文地质试验孔较少,不能有效反映含水层富水性区划以及影响因素的不确定性问题,应用沉积控水规律,构建含有砂泥质量比、卵砾石层厚度、卵砾石层层数以及含水层厚度4个指标的评价体系,采用综合赋权法和多指标综合未确知测度理论耦合评价模型对第四系底部松散含水层的富水性进行评价,进而确定浅部煤层水体下安全煤岩柱留设类型,最后以蔚县矿区单侯矿井进行实例分析.结果表明:该方法能有效地实现松散含水层的富水性区划,为保水采煤分区研究中的含水层富水性评价提供了新思路.The traditional water abundance assessment methods cannot effectively reflect water abundance zoning due to the uncertain problem of influence factors and the problem of less hydrogeological test boreholes.Therefore,the evaluation index system composed of mass ratio of sand and clay,total thickness of gravel layers,amount of gravel layers and aquifer thickness was established employing the law of sedimentary characteristics controlling groundwater.Comprehensive weighting-unascertained measure theory coupled evaluation model was used to evaluate water abundance of loose aquifer at the bottom of Quaternary,which could determine the types of safety coal and rock pillar under water body.Finally,a case study in Danhou mine of Yuxian mining area was carried out.The results show that the method effectively solving water abundance zoning of loose aquifer provides a new idea for water abundance evaluation of loose aquifer in water-preserved mining regionalization.

关 键 词：沉积特征 综合赋权法 未确知测度模型 富水性评价 保水采煤 

分 类 号：TD745[矿业工程—矿井通风与安全]