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1、SHENANPOLYTECHNICUNIVERSITY中英文翻译资料中英文翻译资料学院(系):安全科学与工程学院专业:安全工程学生姓名:王蛟龙学号:3110010104242014年6月4日11SHENANPOLYTECHNICUNIVERSITY中英文翻译资料英文原文STUDYONTOPCAVINGCOALMININGPARAMETERThispaperisdividedinto5parts,thefirstisintrduction,thesecondisthreekindsoftechnicalmodeoftopcavingcoal,generallymininginlow-pit
2、chedthickcoalseam,thethirdisstudyontopcavingcoallawunderconditionsoftopcavingcoal,thefourthisoptimizingparameterofcavingcoal,thefifthisconclusion.Thenucleuspartofthearticleisthefourthaimatcavinginterval,increasetherecoveryrate,theratioofcoalandsendouttopcoalbeingtheoricallyanalysed.Computersimula
3、tionoffertoyieldofworkingfaceeveryday,gettingacrossonedrawingpertworeamerisbetter.Part1:Intrduction.Part2:Threekindsoftechnicalmodeoftopcavingcoalgenerallymininginlow-pitchedthickcoalseam.Thepaperpredictdevelopinghistory、foreground、advantagesandcomingshortsaswellasafewkindsofmodesoftopcavingcoali
4、nourcountry,andintroducemodeof"Yangquan"、"Micun"、"Wulan".Part3:Studyontopcoalminingdrawinglawondrawingtopcoal,andstudyonmovingprocessofcoalandrockatdrawingopningpositionof.Whenhighoftopdrawingbodytaketurnslessthan、equalto、morethan"x0",accordingly,coalandrockbordercomeintobeingmobilefunnel、desende
5、ntfunnel、crackedfunnel,seefig1:Fig1Relationshipbetweentundishanddrawingbody11SHENANPOLYTECHNICUNIVERSITY中英文翻译资料Movementoftopcoal:Topcoaltakeadvantageofrockpressfragmentate,atfirstundertheforwarddirctionofworkingfacepress,anddeadweightofcoal,crackchangebig,topcoaldisintegrate,atlast,drawingbehinds
6、upporttangent,theshapeofcoaldrawingisapproximaterotatingellipsoid.Accordingtomoveoftopcoal,providecaculatemethodofellipsiodandputforwardmethodofreducerefusecontent:(1)Choosereasonablecavinginterval,whencavingstepintervalisshort,refusecontentisserious,recoveryislower.(2)Shaftalongtwoneibourorifice
7、approximateequaltoshortshaft.(3)Especialthickcoalseamfirstminetopcoalseam,thenminebottomseam.(4)Rockincoalseam,suggestcastingawaysub-levelcaving.Inthesameway,analyinggroundpressureoftopcavingcoalworkingface.Throughtheo
