超遠(yuǎn)距離下保護(hù)層開(kāi)采及強(qiáng)化抽采在陽(yáng)泉礦區(qū)的應(yīng)用研究.pdf

1、分類號(hào)：分類號(hào)：學(xué)校代碼：學(xué)校代碼：UDCUDC：密級(jí)：級(jí)：碩士學(xué)位論文碩士學(xué)位論文超遠(yuǎn)距離下保護(hù)層開(kāi)采及強(qiáng)化抽采超遠(yuǎn)距離下保護(hù)層開(kāi)采及強(qiáng)化抽采在陽(yáng)泉礦區(qū)的應(yīng)用研究在陽(yáng)泉礦區(qū)的應(yīng)用研究TheultralongdistancelowerprotectivelayerexplationstrengtheningdrainageappliedresearchinYangquanminearea研究生：生：梁忠秋梁忠秋導(dǎo)師：師：王魁軍王魁軍研究

2、員研究員學(xué)科專業(yè)：學(xué)科專業(yè)：安全技術(shù)及工程安全技術(shù)及工程研究方向：研究方向：礦井瓦斯災(zāi)害防治礦井瓦斯災(zāi)害防治培養(yǎng)單位：培養(yǎng)單位：煤科總院沈陽(yáng)研究院煤科總院沈陽(yáng)研究院煤炭科學(xué)研究總院2014年5月煤炭科學(xué)研究總院碩士學(xué)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