特厚煤层大采高综放自动化开采技术与装备王国法

doi10.11799/ce2018010012017－12－202017YFC06030059732014CB0463021960—[e-mail]。．J．20185011－6．100013。“”“”。。、、。TD355A1671－0959201801-0001-06Automatedminingtechnologyandequipmentforfully－mechanizedcavingminingwithlargeminingheightinextra－thickcoalseamWANGGuo－faPANGYi－huiMAYingCoalMiningBranchChinaCoalＲesearchInstituteBeijing100013ChinaAbstractInviewofthetechnicaldifficultiesoffullymechanizedtopcoalcavingmininginthehardandthickseaminminingareasofwesternChinawestudiedthecouplingbetweenhydraulicsupportandsurroundingrockforfullymechanizedtopcoalcavingfacewithlargeminingheightanalyzedtheroofcoalcavingstructureandthedeterminationmethodofhydraulicsupportworkingresistancedevelopedtheintelligentsupport－rockcouplingcontrolsystemandautomatictopcoalcavingcontrolsystemrealizingautomaticminingoffullymechanizedtopcoalcavingminingfacewithlargeminingheight.Basedonthecouplingrelationshipbetweenhydraulicsupportandsurroundingrockofthefullymechanizedtopcoalcavingminingfaceinhardandultra－thickseamweestablishedtheofcantileverbeammodelforhardtopcoalcavingandthecombinedcantileverbeammodelofroofstratastructureinstabilityandthenproposedthedeterminationmethodofreasonableminingheightforhighfullymechanizedcavingfaceandreasonableworkingresistanceofhydraulicsupport.Byanalyzingthebearingcharacteristicsofthetwo－legstronghydraulicsupportweinnovativelydesignedathree－stagehighefficiencyandstrongperturbationcoalcavingmechanismwithlargeminingheightanddevelopedtheintelligentcouplingcontrolsystemofthehydraulicsupportrealizingreal－timemonitoringofsupportpostureandstressstatus.Basedonthelogicalrelationshipfortimingcontrolofautomaticcoalcavingusingmulti－windowandmulti－turncoalcavingtechnologyinthefully－mechanizedtopcoalcavingfaceanautomaticcoalcavingcontroldevicewasdevelopedtorealizethesafeefficienthighrecoveryrateandautomatedminingoffullymechanizedtopcoal1501COALENGINEEＲINGVol.50No.1cavingminingfaceinthehardandthickcoalseam.Keywordshardandextra－thickcoalseamfully－mechanizedcavingminingwithlargeminingheighttwo－legstrongcavingpoweredsupportintelligentcouplingcontrolautomatedfully－mechanizedcavingmining、、、、1－3。8.0m10m、。、、、、。3.5m。4－56－7BBＲ8－11、、、、12－14。、。、。11.1、、、、、1。。1/m3#11.16f=2.81－29.4f=3.543－5#14.5f=2.73#10.61f=2.63#11.05f=3.63#9.06mf=3.9、、、、。。、、。、、、、。151。1220181、L=h2σt+3qa23槡q－a1LmhmqN/m2qN/m2am。、2。2、、。1L＜L1。2L＜L2。、1、。。1.2“”、3163“”P=GZ+GmLZlLm·L·k2PMPaGZNGmNLzlmLmmLmk、、、Zjj=123。、。。、。“”“”4。。4320181。。22.1、、“”。。。17。ZFY18000/28/53DX5。X=r2+PEr3/Pr1－r2－PEr3/PL11－ftanλ+fH03fPkNPEkNr1、r2mr3mL1mλ、°H0m。5ZFY18000/28/53D“”“”“”。、“”。2.26。67“+”。。72.3“”“”“、”、“、”、“、”、“、”、、、420181、、8。8、。2.49、、、、、、。、。。。9、、、。X－90°～+90°、Y－90°～+90°≤±1.0%。0～60MPa≤±1.0%≤5%1s≤3s10－6。ZFY18000/28/53D3.2%0.2%1.5%1.3s。3、、、、“”。3.1、、、、、、、。γ、、、、、、、20。18、、、。、、。。3.210。ＲBF520181。10225s315s53716.4s。41、、。2“”、。3。4、。1．J．2012967－73．2．J．2002212273－279．3．J．201341738－42．4．J．201547101－48．5．J．20153217－13．6．BBＲJ．2015403487－493．7．J．201338111905－1911．8．J．201540130－34．9．J．20143981593－1601．10．M．2010．11．J．201237111777－1782．12．J．201446785－88．13．J．20164121197－1204．14．J．2007325449－452．15．J．2017424817－824．16．J．2011361145－151．17．J．200331436－38．18．J．2014409121－124．620181