XY-4岩心钻机升降机地设计2.doc

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1、CorrelationofTBManddrillingmachineperformanceswithrockbrittlenessS.Kahraman,GeologicalEngineeringDepartment,UniversityofNide,51100Nide,TurkeyReceived3May2001; accepted19November2001. Availableonline18December2001.Referredtoby:Corrigendumto:“CorrelationofTBManddrillingmachineperformanceswithrockbrit

2、tleness”[Eng.Geol.65(2002)269–283],EngineeringGeology, Volume67,Issues3-4, January2003, Page405S.KahramanSummaryPlus

3、FullText+Links

4、PDF(35K)AbstractThecorrelationsbetweenthreedifferentmethodsofmeasuringbrittlenessandbothdrillabilityandborabilitywerestatisticallyinvestigatedusingtherawdataobtainedfr

5、omtheexperimentalworksofdifferentresearchers.Strongexponentialrelationshipsbetweenthepenetrationratesoftunnelboringmachine(TBM)andthebrittlenessofB1(theratioofcompressivestrengthtotensilestrength)andB2(theratioofcompressivestrengthminustensilestrengthtocompressivestrengthplustensilestrength)werefou

6、nd.Thereisnocorrelationbetweenthepenetrationratesofthediamonddrillingtoolandthebrittlenessvalues.StrongexponentialcorrelationsexistbetweenthepenetrationratesofrotarydrillsandthebrittlenessofB1andB2.However,nocorrelationbetweenthepenetrationrateofrotarydrillsandthebrittlenessofB3(theproductofpercent

7、ageoffinesinimpactstrengthtestandcompressivestrength)wasfound.ThepenetrationrateofpercussivedrillsdoesnotexhibitacorrelationwiththebrittlenessofB1andB2,butthepenetrationrateofpercussivedrillsisstronglycorrelatedwiththebrittlenessofB3.Itwasconcludedthateachmethodofmeasuringbrittlenesshasitsusageinro

8、ckexcavationdependingonpracticalutility.AuthorKeywords:Rockbrittleness;TBMs;Rotarydrills;PercussivedrillsArticleOutline1.Introduction2.Brittleness3.Evaluationofsomeexperimentaldata3.1.Tunnelboring3.2.Diamonddrilling3.3.Rotarydrilling3.4.Percussivedrilling4.Correlationsamongthethreedifferentmethodso

9、fmeasuringbrittleness5.ConclusionsReferences1.IntroductionRotaryandpercussiondrillingequipmentiswidelyusedinrockexcavation.Tunnelboringmachines(TBMs)areubiquitousincivilengineeringapplications.Havingsomepri