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1、ComputersandGeotechnics55(2014)290–305ContentslistsavailableatScienceDirectComputersandGeotechnicsjournalhomepage:www.elsevier.com/locate/compgeoInvestigationofnaturalrockjointroughnessa,bb,⇑acYunfengGe,PinnaduwaH.S.W.Kulatilake,HuimingTang,ChengrenXiongaFacultyofEngineering,China
2、UniversityofGeosciences,Wuhan,Hubei430074,ChinabRockMassModelingandComputationalRockMechanicsLaboratories,UniversityofArizona,Tucson,AZ85721,USAcThreeGorgesResearchCenterforGeo-hazard,MinistryofEducation,ChinaUniversityofGeosciences,Wuhan,Hubei430074,ChinaarticleinfoabstractArticl
3、ehistory:ThepaperprovidesacomprehensivereviewonrockjointroughnessmeasurementandquantificationReceived23April2013procedures.SuperiorityoffractalbasedmethodsoverJRC,statisticalparametersandstatisticalfunctionsReceivedinrevisedform11August2013inquantifyingroughnessisdiscussedinthepape
4、r.TwoofthebestfractalbasedmethodologiesavailableAccepted21September2013intheliterature,themodified2-Ddividerandvariogrammethods,areusedtoquantifynaturalrockjointroughnessin3-Dand2-D,respectively.Thecapabilityofthesetwomethodsinaccuratequantificationofnaturalrockjointroughnessisshown
5、inthepaperbyapplyingtheprocedurestofournaturalrockjoints.Keywords:Agoodcomparisonhasbeenobtainedfromthevaluesobtainedthroughthetwomethods.BoththeseRockjointsmethodologieshavetwoparameterstocapturethestationaryroughness.ThefractaldimensioncapturesRoughnessQuantificationthespatialaut
6、ocorrelationofroughness;theotherparametercapturestheamplitudeofroughness.MeasurementAnisotropicroughnesshasbeenstudiedbyapplyingtwoothermethodologies:(a)atriangularplateFractalsmethodologyand(b)alightsourcemethodologytothesamefournaturalrockjoints.Areasonablygoodcomparisonhasbeeno
7、btainedthroughtheresultsofthesetwomethodologies.Allfourroughnessquan-tificationmethodologiescanbeappliedtoanysizeofsamplecoveringfromlaboratorytofieldscales.Theresultsofthetriangularplateandlightsourcemethodologiesprovidedpossibleslidingdirectionvalues(underthegravitationalloading)c
8、losetothatreportedintheliterature
