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1、眉题3文章编号:1001-1986(2012)04-0043-04近松散含水层下采煤安全性熵值模糊综合评判杨滨滨，隋旺华(中国矿业大学深部岩土力学与地下工程国家重点实验室，资源与地球科学学院，江苏徐州221008)摘要:基于模糊数学理论，通过统计经验数据，采用熵值法对影响近松散含水层安全开采的关键因素赋权，利用GIS定量确定各个因素的隶属度，构造了基于熵值的模糊综合评判模型。以山东某矿六采区01工作面开采为例，选择覆岩厚度、断层构造、第四系底部粘土层厚度、底部含水层的单位涌水量、煤层开采厚度、导水裂隙带高度6个影响因素为评判指标，确定了可行性程度的评判集：{较低，低，中等，高，很高
2、}，依据水体下开采的有关安全规程，采用GIS方法确定了各个因素的隶属度，并利用历史开采经验数据确定各个影响因素的权重。对该工作面近松散含水层下开采的评判结果表明，该工作面控制采高为2m时开采是安全可行的，开采过程中针对薄弱环节采取了相应措施，没有发生突水溃砂事件，初步验证了该模糊综合评判模型的实用性。关键词：水体下采煤；松散含水层；导水裂隙带；熵值法；模糊综合评判中图分类号：TD12文献标识码：ADOI:10.3969/j.issn.1001-1986.2012.04.010Afuzzycomprehensiveevaluationofcoalminingnearunconsoli
3、datedaquifersYANGBinbin，SUIWanghua(StateKeyLaboratoryforGeomechanicsandDeepUndergroundEngineering,SchoolofResourcesandGeosciences,ChinaUniversityofMiningandTechnology,Xuzhou221008,China)Abstract:Basedonfuzzymathematictheoryandrelatedstatisticaldata,theentropyweightmethodwasusedtoevaluatethewei
4、ghtsofthekeyfactorsaffectingtheminingsafetyunderunconsolidatedaquifers.Moreover,GISwasappliedtodetermineeachfactor’smembershipdegree,thereforeafuzzycomprehensiveevaluationmodelwasestablishedbasedonentropyweight.InthepanelNo.01ofacoalmineinShandongProvince,sixfactorswerechosenasevaluationindexe
5、s,includingthethicknessofoverburdenrock,faultstructure,thethicknessofthelowermostQuaternaryclay,thespecificcapacityofthebottomsandaquifers,thethicknessofminingandtheheightofwaterflowingfracturedzone.Theevaluationsetofthedegreeoffeasibilitywasdeterminedas{lower,low,medium,high,veryhigh}.Accordi
6、ngtotherelatedcodesforminingsafetyunderwaterbodies,eachfactor’smembershipwasdeterminedbyGISandeachfactor’sweightwasdeductedfromcasehistoryminingdata.Acomprehensiveevaluationfortheminingsafetyundertheunconsolidatedaquifersshowsthatitisfeasiblewhentheextractionheightis2.00mforthepanel.No.01bytak
7、ingappropriatemeasurestargetingonsomeunsafefactors.Noseriousdisturbancesandaccidentssuchasgroundwaterinrushandquicksandhavehappenedduringminingandtheapplicabilityofthefuzzyevaluationmethodhasbeenverifiedpreliminarily.Keywords:coalmining
