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                           StudyofdeterminationmethodsofrockmassmechanicalparametersI:
                                           In - situtestandquantitativeanalogy

                                                     WANGXiaogang
                                  (StateKeyLaboratoryofSimulationandRegulationofWaterCycleinRiverBasin,
                                 ChinaInstituteofWaterResourcesandHydropowerResearch,Beijing 100038,China)

                  Abstract:Aimingattheproblemofreasonabledeterminationofthemechanicalparametersofrockmassinengi
                  neering ,thesystematicresearchonin - situtesttechniques,quantitativeanalogymethodsandnumericalsimulations
                  wasconducted ,andasystem forthecomprehensivedeterminationofrockmassmechanicalparametersincluding
                  “oneequipment,onelibraryandoneplatform”wasestablished.First,thetestequipmentforevaluationofrock
                  massqualityduringdrillingprocessanddeterminationofmechanicalparametersofrockmassbasedonboreholewas
                  developedinthispaper ,andamethodtoevaluaterockmassqualitybasedonthemeasuredparameterswhiledrill
                  ingandthequantitativerelationshipbetweenthestrengthandwearresistanceofrockmassandtheparameterswhile
                  drillingwasproposed.Thetechniqueofquicklyobtainingtheshearstrengthandcomprehensiveelasticmodulusof
                  rockmassfromdifferentrockstratabyelasticmodulusandsheartestinboreholewerepresented.Then ,adatabase
                  composedoftheshearstrengthparametersofrockmassof681groupsfrom 81projectswasconstructed,andthe
                  statisticalcharacteristicsoftheshearstrengthparametersofdifferentrockmasswerestudied.BasedonBayesmeth
                  odandreliabilitytheory ,aquantitativeanalogymethodwasproposedtodeterminerockmassparametersbyuseof
                  thesampledatainthedatabaseandfewtestresultsinengineering.
                  Keywords:rockmassmechanicalparameters;rockmassqualitytestwhiledrilling;drillshearmodulustest;da
                  tabaseofshearstrengthparameters ;quantitativeanalogymethod

                                                                                    (责任编辑:李 娜)







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