土压平衡盾构掘进刀具动态磨损研究

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1、北京交通大学硕士学位论文土压平衡盾构掘进刀具动态磨损研究姓名：张明富申请学位级别：硕士专业：岩土工程指导教师：袁大军20071201北京变通大学硕士学位论文ABSTRACTABS’IRACTThemaintypeBofshieldmaehhleuse,drecently缸tunnelcons腓妇afcearthpfesgu”balance(EPB)shieldmIdIJhlFryshi*ldInordertoreduceshieldcuttersV#l；al"，theadwmoemcntparameterhshieldt；onstl'uctionpr∞cssshouldbcra

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5、I'eilflⅢmdiIm％ciIgfactorsafallkindsofEPBshieldcutterswereⅫalyzed．Secondly,EPBgh-eldcutterwearwithukr鹊oni。supervisoryge盯forabrasionWiltsresearchedin1}allldycobble±ltratunlThedesignoftestisrationalandtlleresultoft∞tistrue．Thirdty,WnabrasioncodIk墒畦嚣dependentvariable,advartcementrate·totalthrust

6、，cuttttr-headrotationspeedandcuttertorque∞证dcp％妇‘variablesrespcetively．fourregressionexpressionswereestablishedarid啦htregressiongraphw∽drar,vn．Basedontheregression％pr∞s鼬∞dgraph，therationalrangeofadvancementparameterswasproposedaidthefittingexpressionofabrasiolaofshieldcu“目3toadvlmclfllentdis

7、ta∞ewasestablished．Whichmayprovidetheorybasisforredueingabrnsionofshield。uttcrsinpraoticalengineering．a甜estim{ltethelongeradVancclnentd面lan。e面s妇丑afstratumandcutters扛l七tnre．Fourthly,BasedOnthefittingexpr％slonofabr∞ionofghieldcutterstoadvanc：ement，th