超遠距離下保護層開采及強化抽采在陽泉礦區(qū)的應用研究.pdf

1、分類號：分類號：學校代碼：學校代碼：UDCUDC：密級：級：碩士學位論文碩士學位論文超遠距離下保護層開采及強化抽采超遠距離下保護層開采及強化抽采在陽泉礦區(qū)的應用研究在陽泉礦區(qū)的應用研究TheultralongdistancelowerprotectivelayerexplationstrengtheningdrainageappliedresearchinYangquanminearea研究生：生：梁忠秋梁忠秋導師：師：王魁軍王魁軍研究

2、員研究員學科專業(yè)：學科專業(yè)：安全技術及工程安全技術及工程研究方向：研究方向：礦井瓦斯災害防治礦井瓦斯災害防治培養(yǎng)單位：培養(yǎng)單位：煤科總院沈陽研究院煤科總院沈陽研究院煤炭科學研究總院2014年5月煤炭科學研究總院碩士學位論文IIAbstractInrecentyears，withtheincessantincreaseinminingintensitythegradualincreaseinminingdepthofcoalmine，th

3、esafetyproductionofminewasseverelythreatenedespeciallyfminingtheoutburstcoalseamwithhighgascontentlowgaspermeability.Thelongtermpracticeshowedthatitwasasoeffectivemeasurefpreventingtheregionalgasoutburstbyminingtheprotec

4、tivecoalseamdrainingthereliefgasofprotectedcoalseam.InthispaperthetechnologyminingthelowerprotectivecoalseamwithultralongdistanceitsstrengtheninggasdrainagewasappliedtoYangquanMineArea.Theresearchmethodsoftheeticalanalys

5、issimilarsimulationtestfieldtestwerecomprehensivelyused.TheconceptofrelativeinterlayerdistancewasintroducedbyreferringtothesuccessiveexampleminingtheprotectivecoalseaminHuainanMineAreacombiningwiththepracticalconditionin

6、YangquanMineArea.Theresultsshowedthatthestressofprotectedcoalseamwasdecreasedwhilethelowerprotectivecoalseamwasextractedwithultralongdistancethereliefgaswasdrainagedthepermeabilityofcoalseamwasincreased.Allbasicparameter

7、sofgaswerereducedtolessthantheoutburstcriticalvaluetheoutburstdangerwasfullyeliminated.Basedonthestudyontheapplicationoftechnologyminingthelowerprotectivecoalseamwithultralongdistanceitsstrengtheninggasdrainageitprovided

8、animptantoutburstpreventionmethodinYangquanMineArea.Thegoodeconomicalefficiencywasobtaineditwillprovideimptantreferencevaluefothersimilarminearea.Keywds:ultralongdistance；mininglowerprotectivecoalseam；relativecoalseamdis