巨厚红层下煤层突出预测敏感指标研究  

Research on Outburst Prediction Sensitivity Indexes of Coal Seam Under Thick Red Beds

作　　者：刘坤[1] 程远平[1] 王亮[1] 金侃[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《煤矿安全》2016年第10期21-24,共4页Safety in Coal Mines

摘　　要：以许疃煤矿古近系巨厚红层沉积层下伏32煤层为研究对象,对32煤层多元物性参数进行分析,对32煤层突出预测指标及其临界值进行研究。结果表明:许疃煤矿32煤层上方有无红层覆盖,对32煤层瓦斯赋存规律存在明显影响。红层覆盖区与非红层覆盖区下的煤样多元物性参数无明显区别。瓦斯压力值作为区域突出预测的判定指标,指标△h2作为局部突出预测的判定指标,并采用"三率"分析法验证指标△h2的准确性。Taking underlying 32 coal seam of Xutuan Coal Mine under Palaeogene super thick red beds settled layer as the research object,some methods were used to analyze the gas occurrence laws and research the outburst prediction indexes and critical value of 32 coal seam. The results indicate that whether the red beds cover or not,it has a significant effect on the gas occurrence laws of 32 coal seam. The multiple physical parameters of those coal samples have no obvious difference under the coverage area of the red beds and the non-coverage area. The index of gas pressure could serve as the judge index of prediction,and the index △h2could serve as the judge index of the local prediction,and the ＂ three rates＂ analysis was adopted to verify the accuracy of the index△h2.

关 键 词：红层 瓦斯赋存 突出预测指标 多元物性参数 “三率”分析法 

分 类 号：TD712[矿业工程—矿井通风与安全]