砂岩含水层富水性评价指标体系构建及优选研究  

Indexes System Construction and Optimization on Water Yield Evaluation in Sandstone Aquifer

作　　者：田增林 曹海东 黄选明 

机构地区：[1]煤炭科学研究总院,北京100013 [2]陕西省煤矿水害防治技术重点实验室,西安710077 [3]中煤科工集团西安研究院有限公司,西安710054

出　　处：《煤炭技术》2017年第12期154-156,共3页Coal Technology

基　　金：国家科技支撑计划(2017YFC0804102);陕西省自然科学基金(2014JM2-5064)

摘　　要：为使砂岩含水层富水性评价体系更加科学完善,将富水性评价指标体系剖解为4个相对独立的二级模块:厚度场、岩性组合场、裂隙场、构造场。以厚度场为例,结合麦垛山井田直罗组下段含水层抽水试验资料,构建了包括粗砂岩厚度、粗中砂岩厚度和、粗中细砂岩厚度和、砂岩总厚度、岩性结构指数以及单层砂岩厚度6项三级指标。经灰色关联度计算,对6项指标进行了关联性排序。结果显示,对于麦垛山井田直罗组下段砂岩含水层而言,粗中砂岩厚度和是表征厚度场对富水性指示作用的最优指标。In order to make the evaluation of aquifer water yield more rational, the evaluation indexes system were divided into four major relatively independent second-level modules, which are thickness field, lithological combination field, fissure field and structure field. With the example of thickness field and connecting with the pumping test data of the Jurassic bottom sandstone aquifer in the Maiduoshan mining area, six three-level indexes such as the thickness of coarse sandstone, sum of the thickness of coarse and medium sandstone, sum of the thickness of coarse, medium and fine sandstone, sum of the sandstone, the structure index of lithological property and the single thickness of sandstone were built. Using the grey correlation analysis method ranked these indexes and result showed that sum of the coarse and medium sandstone was the best index among the six indexes in the thickness field.

关 键 词：富水性评价 砂岩含水层 灰色关联度分析 

分 类 号：TD741[矿业工程—矿井通风与安全] P641.6[天文地球—地质矿产勘探]