煤矿开采与安全外文翻译.docx

煤矿开采与安全外文翻译.docx

《煤矿开采与安全外文翻译.docx》由会员分享，可在线阅读，更多相关《煤矿开采与安全外文翻译.docx（8页珍藏版）》请在冰豆网上搜索。

煤矿开采与安全外文翻译

附录2

Coalminingandsecurity,

Keyword:

"threesoft"coalbed;Minepressureshowfeaturesone.

The"threesoft"coalbedontopofcoalminelocatedpressureofstudy1,locatedabout12,090,locatedintheGreatWestYugouminingbureauhoistedtwowellsbelowaDistrictEast,West2Westtransportbeltsdown,2miningareasineast-westbordertostopathread.located420mtowardstheaveragelength,100mlongtrend.Thesecondone,locatedstopingcoalbed,FucunGroupinShanxiErdiexibottom.Becausecoalbedsedimentenvironmentandtheimpactoflatertectonicmovements,uneventhickness,largerchanges,stopingcoalinthecontextofathinbeltpresence（vicealleyinde40~180mabove,thethicknessofacoalbed0~1.6m）,tobringacertaindegreeofdifficultystopingwork.coalbedinclinationto7~14meridianeast,theaveragethicknessof4coalbed.62m,thecoalisofrelativelyforanthracite,coalisofrelativelysoft,lowintensityandeasytorundown.Directroofforthestones,mudstoneandsandymudstone;direct-bedforthestones,axes;Indirecttop,-bedbetweenlocalpresenceandpseudo-pseudo-topend,thevariablequalitymudstoneormudstonemostlycarbon,thicknessgenerallylessthan0.5m.2minepressurisedobservationcontentandlayoutminedetectionpointpressureisthemainpurposeofobservinglargeYugouMiningBureau"threesoft"coalbedgunsacoallocatedontopofthepressuredistributionpatternandadvancetopressurestepfromtheinitialroof,pressuretostepawayfromthecycleandintensity.majorobservationalcontentpitpropspressure,locatedcradlespressure.Atthesametime,youshouldalsopayattentiontotheobservationofaface,supportingmacroeconomicsituationchanges;WatchtopcoalbrokenoffaftertheroofandthetopofthecoalshedYunyi3locatedadvancepressuredistributioncharacteristics3.1observationdatacollation,locatedbackalleyadvancewindpressureobservationperiod,Undergrounddailysentpeopletothestationpressuregaugereadingsrecorded,measuringstationlocatedtothedistance,macro-observationplanelane,alleyandsurroundingrockchangesinthewindconditionsandintensedeformationmeasurementsrelatingtothedistrict,locatedinthedistance.Aftercalculationhandlingobjectscharts.3.2advancedistributionofpressurefromthewindpowerplantLanecanfinallycurve,causedbycoalminingismuchpressuretoadvanceworkbeforeside34m,34matworkbeforethesidestreetwillbelocatedwithinthestopeadvancepressure.advancepressurepeaksintheworkzonebeforeside9~12m,asignificantincreaseinthevolumeofpitdeformation,topJingfencefracturesincrease,andsometimesacoalbusiness,abrokencinderended.34mawayfromthesidebeforetheworkstoppagethatcouldadvancepressurefromtheimpactofastressstabilityzone.Thetwocoalbedbelongingtooneof"threesoft"instabilitythickcoalbed,theoldtoptopressureevident,leadingtoworkonstressdistributionsidebeforeextendedstresspeaks,locatedfarawayfromthedistrict,stressconcentrationfactoris,However,therelativeproximityofthelargerpitsurroundingrock,toreducetheexcessivestopepillarssurroundingrockdeformationanddestruction,andgivefullplaytotheroleofsupportingthesurroundingrockdeformationcontrol,workbeforethetwopartieswithin21malleytoadvancesupportfor.4coalmininglocatedrooftopressureof4.1minecoalminingismuchpressureobservationdatacollectionandprocessingforaboutgunstakenonthetopandroofloadcoalmine,locatedcradlespressuredistributionpatterns,12,090wellslocatedintheredflagfortheuseofpressure-Yalijilocatedcradlesahalfloadforthesiteobservationsthataftercalculatingtheresultsprocessedfigure3-Figure5below.Figure3isthebackboneofthechassisismuchdatatoloadforX-coordinateobservationcycle,weightedaveragetimetoloadaverticalstructurecoordinates.canbeseenfromFigure3,locatedalongthedirectionofacyclicalmovementroofphenomenoncycletopressuretostepawayfrom19m.Figure4islocatedoppositetotheX-coordinatelongtonormalwhenthethreepillarsofloadtestingstationfortheaverageverticalcoordinates.byFigure4showsthatCoalismuchmorealongthedirectionofthetop（board）campaignhasbegunminepressureareacharacteristics,thegreatestpressureonthemiddleandupperoccasions,thesmallestpart.4.2stopeminepressuremanifestedbythebasiclawofobservationaldataanalysisstopeminepressureshowthefollowingobviousfeatures:

（1）Overall,supportsearlyresistancedonotholdpowerandworkgreat.AsthisismuchdirectcontactwiththespherepaymentsLiangwasnamedtopsoftcoal,coupledwiththeroofisalsoverysoft,inthetimeframesestablishedintheearlyextensiontobeabletoimprove.Averagepowerforitselfinearly226.38~227.36kN/toshedforresistanceworkrated15.4%~16.8%Workingresistanceaveraged252.84~272.44kN/toshedforresistanceworkrated17.2%~18.5%topressure,themaximumresistancefor372.4kN/toshed,23%ratedtheworkofresistance.3%Theaverageintensityofsupportforthe102.3~144.5kN/map.problemsarecausedmainlycoal-bedandthetopistoosoftandmonomerpillarinsertedattheendofserious（somepillarsinsertedtotheendof700mmormore）,sometimessteelgirderalsodrilledtop.lowersupportbodyrigidity,limitingtheabilitytoplayasupporting.

（2）Inthecourseofsupportingapayloadlocatedinthenon-violentchange,thepressuretoshowmoderateandmine,tosuppressevidencecycle（comparedwiththestratificationchangesevidentexploitation）,showagroundmovementofrocksnotviolent.（3）totheoldtopoftheinitialpressuretostepawayfromabout19m,pressuretotheendoftheperiodcradlesinsertedageneralincreaseinthevolume,thedeepestreached95cm;coalPikfilmstoserious,thedeepestreach0.5m;Guardingincludesfracturesincreasingpressuretoshowquicktoshedmineobvious.（4）roofcycletopressuretostepawayfromthegeneral6~12m,withanaverageof9m.topressure,Nationalaverageloadrateandpeakloadgenerally1.1~1.3（5）worksurface,China,andthreeoffices,locatedunderthesamebasicstructureresistance.Thiswasmainlyduetotopcoalpinebroken,theroofvulnerabletocollapsedown,thetwolaneorcoal,donotappearonbasicexportKokDepartmenttriangulararc--top.stoperoofcollapseoreventhewhole,extractionregionfilledwithbetterresults.（6）roofpressureontheformerthancoalorcoal,small,oranaverageof237coalago.16kN/toshed,oranaverageof268aftercoal.52kN/toshed.Thisismainlybecauseontheformercoalextractionregionoftheroofwasbrokenupandtopcoalisfilledwithmoreinamarketcreateda-bed,cradles,brokendownobjects,topcoalcompositionbalancesystem,inthissystem,supportingthemainsupportcomingfromthetopofthecoalandtheroofspaces.orcoal,brokendownbyhelicopteraftertheoriginalspacewasfilledwithtopcoaldeplete,andtherooftocollapsedowntocompletelybackward,theoriginalbalancesystemisdamaged,andthattheplantshouldnotonlysupporthighertopcoalAdditionalsupportalsointheroofabovethepressureandthereforethepowerplanthaveincreased.However,thesideroofoverasoft,withaSuicollapse,notalargeoverhangtop,thestructurewillnotcollapsedowntheimpacthazard.5knotontopof12,090gunsalowloadcoalplant,located,minepressureappearedevident.thisisbecausethecoalbed"threesoft"coalbeds,pillarsinsertedatthepressureseriously,cradleseffectivenesshasnotbeenfullyexploited;Ontheotherhand,becausetheroofismuchthicker,withathen-andextractionregionfilledwithbetterresults.Inviewofthis,weshouldincreasethecoverageofasupportcutandraisethepillarsofpowerintheearlyintentiontoincreaseplantstability.Second,CoalMinegasexplosionaccidentelectricalcurrentincentivesandmeasures,mostofourcoalupwardinclinationtomoveboring,coalmakessuchapartialortotalremovalofthedumpingofthetop,thereasonistousegravitytopassoutofcoalmining.Becauseofspillovercoalminegasairmasslighterthanair,sogasgasintheairbybuoyancyrolewillbealongthestreet,dumpingflowstothetop,gatherthetopofthehighestpointinthepit（coalminingside）neara5%~15%sizethanforthegas-airmixturecanbeexplosivegas.Therefore,coal,gasgascombinedwiththedumpingpittop"sincedeterioratedrole."Atpresent,China'scoalmineventilationmethodsusedmaynotbethecompleteeliminationofthisformofburglarymixedgas,whichisoneofthemainreasonsforsuchcoalminegasexplosion.Itshouldbesaidthatafterthecoalminegasexplosionintherelevantdepartmentsandpersonneloperationsofanumberofpainfullessonslearned,whichhasalsotakensomemeasures,buttheexplosionisstillunabated,andthisshowsthatinthepreviousincidentssummedupthereasons,therearemajorunderlyingfactorsinduced.Inrecentyearsmanycasesoftheauthoroncoalgasexplosionaccidentandthecauseoftheaccidentwasannouncedincompletestatistics,theanalysisfoundthatthecoalminegasexplosionaccidentsubjectiveandobjectivefactorsaremanifold,butthemostfundamentalfactorthandirecttwomainaspects:

First,thepartiallossofgasconcentrationreachedexplosivelimits;inthepresenceofonetotwobasisofmanytypesofelectricalequipmenterrorormineoperationagainstinducedelectricalsparkorexplosiondue.Totheeliminationofoneofthepartiesconcernedhavemadefruitfuldiscussionsonthefollowingtwokeytothe