平顶山十一矿己16-17煤层采掘工作面突出危险性指标预测评价(毕业设计VIP免费

平顶山十一矿己16-17煤层采掘工作面突出危险性指标预测评价摘要：本文根据现场预测数据统计的地勘资料和瓦斯动力显现情况，简要分析了己16-17煤层的瓦斯分布规律。根据掘进工作面突出危险性预测的结果，用安全性和经济性两个指标分析预测指标的可靠性。为掘进工作面突出指标的选择和临界值确定提供了有力的依据。关键词：区域划分工作面预测可靠性评价Appraisaloncoal-gasoutburstpronessindexofF16-17coalseamExcavatingworkingfaceon№11Mine,PingdingshanAbstract:Thisarticleaccordingtothescenetoforecastthedatastatisticsmaterialandthegaspowerappearthesituation.HasanalyzedtheF16-17coalbedgasdistributedrule.Accordingtothetunnelingworkingsurfaceprominentriskforecastresult,usessecureandtheefficienttwotargetsanalysesforecasttargetreliability.Forthetunnelingworkingsurfaceprominenttargetchoiceandthemarginalvaluedeterminedhasprovidedthepowerfulbasis.Keywords:regiondivide;workingfaceforecast;reliabilityappraisal目录1前言..............................................................................................................11.1意义和目的............................................................................................11.2研究的内容和方法...............................................................................12矿井概况...........................................................................................................32.1矿井交通位置及地貌特征...................................................................32.2矿井通风瓦斯涌出及生产现状.........................................................42.2.1矿井通风概况............................................................................42.2.2矿井开采方法，生产现状及瓦斯涌出情况............................52.3井田瓦斯地质.......................................................................................72.3.1含煤地层....................................................................................72.3.2己二采区煤层特征....................................................................92.3.3地质构造..................................................................................123己16-17煤层煤与瓦斯突出危险性预测..........................................................143.1己16-17煤层瓦斯基础参数...................................................................143.1.1己二采区深部煤层瓦斯压力测定结果..................................143.1.2己二采区深部煤层瓦斯含量及工业分析的测定..................153.1.3己二采区煤层瓦斯含量计算..................................................163.1.4己二采区地勘钻孔煤层瓦斯含量..........................................173.2煤与瓦斯突出危险区域预测方法.....................................................193.2.1单项指标法..............................................................................193.2.2瓦斯地质统计法......................................................................193.2.3综合指标D、K值...................................................................193.3煤与瓦斯突出预测的结果..................................................................204己16-17煤层煤与瓦斯突出预测指标评价......................................................214.1突出预测指标q、S统计分析............................................................214.2区域预测指标D、K统计分析..........................................................224.3瓦斯动力现象分析.....................................................