兖州矿区下组煤开采防治水关键技术参数与突水危险性预测研究-矿产普查与勘探专业论文.docx

摘要本文在系统收集兖州矿区水文地质资料及部分已开采下组煤工作面资料的基础上，分析研究了兖州矿区下组煤开采的关键技术参数，包括：水压、隔水层厚度、底板岩层阻水性能、底板破坏深度等。应用多元线性回归方法，重新统计计算了底板破坏深度经验公式，并提出了新的公式，与研究区实测底板破坏深度较为吻合。应用RFPA软件对底板破坏深度进行数值模拟，模拟结果较符合实际情况。统计分析已开采下组煤工作面的突水系数，提出了兖州矿区突水系数界线。采用无量纲多源信息复合法，对兖州矿区下组煤开采突水危险性进行了预测评价，得出突水危险性的主要影响因素的重要性次序为：水压﹥隔水层厚度﹥构造复杂程度﹥富水性。以“下三带”理论为基础，结合突水系数法、模糊聚类法等对兖州矿区的突水危险性进行了评价，并开发了相应软件。关键词：关键技术参数，底板破坏深度，数值模拟，突水系数，模糊聚类，突水危险性预测ABSTRACTBasedonthehydrogeologicaldataandsomelower-groupcoalmineddataofworkingfacefromYanzhoucoalminearea，thispaperanalysesandstudiesthekeytechnicalparametersoflower-groupcoalmineinYanzhoucoalminearea，includingwaterpressure，aquifugethickness，water-resisting capabilityoffloor，depthofdestroyed floorandsoon.Thispapermakes useofmultiplelinearregressionmethodtorecalculatetheexperientialformulaofdepthofdestroyedfloorandeducesnewexperientialformulawhichtallieswiththefieldmeasureddataintheresearcharea.Furthermore，thispaperhasanumericalsimulationwithdepthofdestroyedfloorinusingRFPAwhichtallieswiththefieldmeasureddataintheresearchareatoo.Thispaperhasastatisticsanalysiswith thewaterinrushcoefficientfrom theminedlower-groupcoalminingworkingfaceandputsforwardthelimitofthewaterinrushcoefficientinYanzhoucoalminearea.Basedonnon-dimensionmultiplesourcesinformationcoincidencemethod，thispaperhaveforecastandestimationonthelower-groupcoalminingwaterinrushdangerinYanzhoucoalmine area.Thispaperalsoobtainstheimportancesequenceofinfluencingfactorsaboutlowercoalgroupminewater-inrushdanger.Itis:waterpressureaquifugethicknessstructuralcomplexitywaterabundance.BasedontheDownThreeZonetheory，thispaperestimatesthewaterinrushdangerwiththeWaterInrushCoefficient、FuzzyClusterandsooninYanzhoucoalminearea，meanwhile，thispaperdevelopsitsrelevantsoftware.Keywords:keytechnicalparameters，depthofdestroyedfloor，numericalsimulation，waterinrushcoefficient，fuzzycluster，dangerousforecastofwaterinrush目录1绪论..................................................................................................................11.1课题的提出...............