高瓦斯油气共生易自燃厚煤层巷道松动圈范围的确定

,,,(,454001):,,,,,,:;;:TD712+.6:A:1003-496X(2007)02-0001-03MethodstoDefineLanewaysLooseZoneofTickCoalSeamwithEnrichedGasandSpontaneousCombustionWANGZhao-feng,YANGLi-ping,TIANKun-yun,MAGuo-long(SchoolofSafetyScienceandEngineering,HenanPolytechnicUniversity,Jiaozuo454000,China)Abstract:Methodstodefinethelanewaysloosezoneofthickcoalseamwithenrichedgasandspontaneouscombustionisstudiedinthearticleanddefinetherationalthelengthofsealedborehole.Usinggasdrainageinpressure-releasingzone,thelengthofsealedbore2holeisoneofthekeyfactorstoensurenoentranceforairaroundtheboreholeandincreasethethicknessofdrainedgasundertheinflu2enceofdrainagenegativestress.Therefore,todefinethelanewaysloosezoneisverysignificanttogasdrainage.Keywords:gasdrainage;loosezone;sealedboreholelength,,,,;,,,,,,1216216,,150m,2000m,U+L4-2,10m,6.35m3/t,,(f=1.53),112162(),1(2007-02),,,,,3,,2,2Sh223m,,,,,,,,,,,S3,,,,(10-510-4mm)(10-410-3mm)(10-310-1mm)(10-1mm),,h232164:,,,,2,242mm,10m,33,1m,;MD-2,1MatlabSh2,,41,Sh2452Sh2,2(Total387)1216/m12345678910S/kgm-111.11.12.52.13.73.752.552.82.32.0521.222.32.31.92.83.93.92.8-31.521.81.71.92.3----41.41.23.41.92.22.12.35---52.22.42.62.52.82.72.92.62.62.361.41.71.82.42.3-----h2/9.8Pa1202010303040406050702305040606070606060803203030304060----4304050607070----5202040405040706050506102020506060----45,,2,,43,h2,,5,S2,510m,,,,10m:(1963-),,,,,,,,,,,,(:2006-09-01;:)3(2007-02)