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1、英文原文搶璜怊惝韉甕釜鞴繯汞STUDYONGATEWAYBOLTINGEXCAVATEDIN回康淹詢(xún)博粽囔偽松蓿INCLINEDCOALSEAM券藜你倪罹糝圯憚赤紕(NortheasternUniversity,Shenyang110006)鞭狍梗土敦幗北垅黨跡(ChengduUniversityofTechnology.Chengdu610059)踩粗弒涸庇哂踽掛軫眨Abstract：憩巋鎂燜閻度嶙衤苫感Atypicalgatewayisanalyzedusingfully-deformablediscreteelementmethod.Thefracturedzonearoundthega
2、tewayismeasuredinfield.Basedonthemeasurementresultsandtheoreticalanalysis,acomprehensivesupportschemeadoptingboltandsteelbeltisproposed.Discreteelementmethodisusedtoassestheboltingscheme,anddisplacementmonitoringinfieldisalsocarriedout.Havingbeenputintopractice,itisprovedthattheschemeisbothsuccessfu
3、landrational.Accordingtotheoreticalanalysisandmonitoringinfiled,someimportantkeynotesthatshouldbenoticedingatewayboltingpracticearepresentedaswell.鏗昝敖壁淖痊邁信衍歡Keywords:inclinedseam;gateway;stratabehavior;bolting;discreteelementmethod悔鋒酐堇地陡喁嗥乳住Introduction畦膽锿襤蛐醣鏨絹撅識(shí)Inclinedcoalseamisgenerallyregardedas
4、seamwithadipsingle25~,whichoccupiesaconsiderableproportioninbothproductionandreservesinChina.Problemsrelatedtostratacontrolare,however,seldomstudied,andresearchesonin-seamgatewayareeven.鲇京氛彷鞏錛偈汜政廢Themaintenanceexpenseofgatewayininclinedseamisgenerally30%higherthanthatinnearlyflatandgentlyinclinedsea
5、m.Thereasonwhythereexistsasuchphenomenoniscomplicateditself,anotherpossiblereasonisthelackoftheinherentstratabehaviorlaw.羼士頹侉愛(ài)圖盟腔甬晟Atpresent,problemsrelatedtoin-seamgatewaymaintenancearehighlyemphasizedandmanystudiesonstratabehaviorandsupportofgatewayarecarried.Suchresearchesplayapositiveroleingatew
6、aymaintenance.僂跺殊楣癘姻積颶掩考Howevermostoftheresearchesarecarriedoutinflatorgentlyinclinedseams.Duetotheirlocatinginremarkablyanisotropicmediaandenvironment,gatewaysininclinedseamsareoftensubjectedtounfavorableloadsanddeformunevenly,stratamovemoreintensivelythanthatingentlyinclinedseam,andthebrokenregion
7、isalsolarge,whichmakesgatewaysupportevenmoredifficult.菥蘊(yùn)房鞋藕甄無(wú)佴磽九Inviewoftheabove-mentionedfacts,weusefullydeformablediscreteelementmethodinsimulatingstratabehaviorofgatewayininclinedseam,andtheloosedz
