淺談高瓦斯厚煤層綜采放頂煤工作面瓦斯治理-畢業(yè)論文外文文獻翻譯

1、附錄附錄ELEMENTARYTALKONMANAGEMENTOFTHEGASFROMWKFACEOFINTEGRATEDRELEASETOPCOALINHIGHGASTHICKCOALBEDLIliCHENzhiping(CollegeofResourcesEnvironmentalEngineeringLiaoningTechnicalUniversity)ABSTRACT:Combinationstopingtechniqueson

2、integrationreleasetopcoalanalysisofthesourcesofgascarryingoutthe12acterguidelineofgasmanagementClassificationsubsourcesmanagementofthegaschoosethespecialmeasurestocontrolToachieveasafeenvironmenthighyieldefficientfmines.

3、KEYWDS:gassourcesgasmanagementhighgasintegratedreleasetopcoal.1introductionMinegasisoneofthefivemajdisastersbutalsowiththeminefromtheabonedbuildingtothewholeprocessofcoexistenceChinasgasaccidentsfrequentlyoccuritisimpera

4、tiveGasControlthelinetobeeffective.Atpresentlargescalecoalminingintheshaftthemechanizedproductionefficientdecentralizedproductiondirection.ThethickathickseamFullycavingmethodofminingthefullrealizationofawellsideofthehigh

5、concentrationofhighyieldhighefficiencymodeofproduction.Ascomprehensivecavingfaceahighdegreeofmechanizationtheintensityofminingproductionconcentratedinhighgascoalmineproductionprocessthefaceofasingleindustrywillfocusonalo

6、tofgasemissionwillappearregularlyonthecnerbacktothegassuperMerryRestrictionswhichbecamethefaceofamajobstacletoproductionindertoensureproductionsafetygasissuesmusttakemeasurestobeaddressed.2integratedcavingminingtechnolog

7、yfeaturesShearertouseacertainhighlevelofcoalcuttinghighlydependentoncoalminingthantherestintheupperpartofthecoalmineunderpressurebrokenitsownusingintegratedcavingcoalpoweredsupptthereleasewindowthefacelengthMininggedMeik

8、uaismallermepulverizedcoalcoaltransptationfexploitationofintensityfocusonproductionresultinginminingofcoalgasemissioninthecourseofrapidincreaseincoaldustproducedalargequantity.Gaseasytoincrease.Cutinpromotingearlystagefa

9、cethegascomesmainlyfromthecoalmininggasemissionwiththefaceofadvancingthetopcoalmineunderpressureselfloadingbrokengasemissioninthefacedramaticallyTheincreasebasicstabilityinavalue.4.4minedoutareaofthegasemissionacteristic

10、sGoafgascomesmainlyfromdilapidatedcoalcoalexposedrockfaceinthefmofanattenuationcurvethemegradualdepletionCumulativegasminedoutareaofthedepthconcentrationwiththeincreasemostofthewindgatheredinthealleynearthebackoftheroofD

11、epartment.IntheinitialpressuretothefmernotthebasiclayeradjacenttotheminedoutareaoftheexploitationoftheinfluxofgascanbeconsideredoutofthemaingasbasedlayerofgasemissionWhentherooffirstrunbackwardrelievedonlyinthevicinityof

12、theminedoutareatotheinfluxofgastheinfluxofgasisconstantlyincreasingachieveastablevaluewhenthewkingfaceclosetothestoplinegasemissioninGraduallydecreased.FFullycavingminingcoalinthefaceatthetopofpromotingacertaindistancebe

13、febeginningtotakeoffbrokengasemissionincrease.Sincethereleaseofthecomprehensiveefficiencyisnothighthecoalrecoveryrateislowleftoverfromcoalminedoutareadeepminedoutareaofhighgasconcentrationingeneraloutofthemineventilation

14、minedoutareaisnotclosedtightairleakageseriousveryEasyfthegasgauge.5impactonthevolumeofgasemissionfacts(1)Minepressure.Generaltotheinitialpressureofgasemissionbefethesmallertotheinitialpressuretheroofbehindthefirsttimethe

15、volumeofgasemissionincreasesparticularlyduringtheearlyreleasethegasemissioninthereasonsfthesurgeis:Initialcavingagojustinthefaceofrecoverythistimeafterwkbefetheminepressurewithoutmajchangescoalrockarenotmobilefixedbearin

16、gpressuredestructionthatisnotanewfissuresitssurroundinggaswillbenoReliefwasoutwithalleyesintheconstructionprocessinthedisgeofgashastherefeasmallervolumeofgasemission.Aftertheinitialcavingnearthecoalface(includingtheupper

17、lowerseam)rocktobefixedmobilebearingtheimpactofpressuregeneratedalotofnewfissuresthenasharppressurereliefsothatnearbycoalfaceRockalargenumberofgasfromthesefissuresintheemissionthatisoutofthechannelasubstantialincreaseing