切眼过高冒区综合加固技术研究与应用王宇

62、3。2、3、。1.R.2005.2.4R.2010.3.R.1984.────────────────19792006030620..........................................TheCharacteristicsofJurassicCoal－bearingStrataofNingwuCoalfieldinShanxiProvinceHOUZhen-guoABSTRACT:TheJurassiccoal－bearingstrataofNingwuCoalfieldinShanxiProvincebelongstothethirdsectionofDatongGroup,inwhichNo.2andNo.3coalseamsarestableandminableseams.ThecoalofNo.2andNo.3coalseams,whichisthegascoalwithlowermetamorphicgrade,possessesthefeaturesoflow／mediumashcontent,speciallowtolow／mediumsulfurcontent,mediumphosphoruscontent,highvolatile,andhighcalorificvalue,etc.,andcanbeusedasthegasificationcoal,cokingcoalsandpowercoal.KEYWORDS:Jurassiccoal－bearingstrata;coal-bearingcharacteristics;NingwuCoalfield;ShanxiProvince140、、、。。、。26110110m6111611161111005－6033201125－0204-032011－07－06046031、，、，、、，，；；；TD263ASCI-TECHINFORMATIONDEVELOPMENT＆ECONOMY201121252046110611061106110761000110000900001500061101800061161611016110mm6111。61116111。15m611161111。33.1213—2、——、————1m——。1611015m6111。611061116111。22131m。3。4、611112m。3.2161103200mm4Φ20L2400mm900mm1000mm。CK＋Z2360、Z2360CK＋Z2360Z23601.4m。23m1d17.8mm、6300mm。5m3m12d17.8mm6300mm。1CK＋Z2360、2Z2360CK＋Z2360Z23601.7m300mm×300mm×16mm。34Φ20L2000mm800mm1000mmΦ14mm2800mmZ2335、Z23601.0m。Φ20L1000mm61112。3.31。2。3。4。5。66110。7。。8。、。。4004009009009003500Φ22L2400mm4360438015001000350080080040090024004029003600350800800800250Φ22×2000mm26111mmE-mail:[e-mail]205TheApplicationofMicrocomputer’sDifferentialProtectioninPracticeWENXiao-junABSTRACT:Inthefieldofrelayprotectiontechnique,besidesbeingusedforthefaultanalysisandprotectionaction’sperformanceanalysis,itwasproposedin1965thatthecomputercouldbeusedtocomposearelayprotectiondevice.Connectingwiththecommonfaultsofgenerator,thispaperanalyzestheprinciplesofgenerator’sdifferentialprotection,andbasedonitsprotectionfeatures,designsthehardwarefordifferentialprotectionofmicrocomputer’sdifferentialprotectionsystemofgenerator.KEYWORDS:microcomputer’sdifferentialprotection;hardwaredesign;shortcircuit;singlechipmicrocomputer96111。44.1。4.21。110m357245。90m2371618412010080。2110m26790.8m138369702611090m1.0m901708153720215982。226062。5、、、611161106111。。────────────────197822009046031.StudyonandApplicationofIntegratedStrengtheningTechniqueforOpeningOff－cutsthroughHighRiskAreasWANGYuABSTRACT:InthelightofsomedifficultiesoccurringinroadwaytunnelingofcoalpillarminingfaceandcutoutcoalminingfaceinWangzhuangCoalMine,andinordertoimprovetheconstructiontechniqueandincreasethetunnelingefficiency,thispaperstudiestheintegratedstrengtheningtechniqueforopeningoff－cutsthroughhighriskareaswascarriedoutincludingtheconstructionprocess,supportingmeasures,andtechnicalsafetymeasuresforprovidingtechnicalguaranteeforsimilartunnelingworkinthefuture.KEYWORDS:openingoff－cutsthroughhighriskareas;integratedstrengtheningtechnique;constructionprocess;supportingmeasure199E-mail:[e-mail]206