rockfall参数选取参考

RocscienceCoefficientofRestitutionTableRN(Normal)RT(Tangential)TypeVerificationLocationMinMaxMeanStandardMinMaxMeanStandardDeviationDeviation0.3700.4200.8700.920HardsurfacepavingTestedusingsimulatedGlenwoodCanyon,Colorado,USA0.3300.3700.8300.870Bedrockorboulderswithlittlesoilrockfallsofsimilarsizeandshapeofapreviousrockfall.orvegetation0.3000.3300.8300.870Taluswithlittlevegetation0.3000.3300.8000.830Taluswithsomevegetation0.2800.3200.8000.830Softsoilslopewithlittlevegetation0.2800.3200.7800.820Vegetatedsoilslope0.3150.0640.7120.116LimestonefaceTestedonrestoration-blastingslopesmadeoffourtypesofmaterials;blast-generatedrockfragments,partiallyvegetatedscreeonberms,uncoveredblastpiles,andvegetatedquarrywaste.LimestonequarryinEngland0.3030.0800.6150.170Partiallyvegetatedlimestonescree0.3150.0640.7120.116Uncoveredlimestoneblastpile0.2510.0290.4890.141Vegetatedcoveredlimestonepile0.2760.0790.8350.087ChalkfaceChalkquarryinEngland0.2710.0180.5960.085Vegetatedchalkscree0.3840.1330.6870.130Woodplatformslopeat45degreeswasusedasacontrolforthefieldteststheydid.TestedascontrolparametersWesternNorthCarolinaforInterstate40.0.2000.530DolomiticlimestonebouldersonrockysurfacesandontalusdespositsConsistedofhandmadethrowsandfreefalltestsbyfragmentationofrockusingexplosives,ofdolomiticlimestonebouldersonrockysurfacesandontalusdepositofthelandslidefans.Alsousedback-analysis,andinformationfromUrciuoli.Atrani,Campania,SouthernItaly0.1000.200Remoldedpyroclasticfromtheterracessituatedatthebaseofthecliff0.0000.240Impactsondetritusofthefanspresentatthefootofarockcliff0.3930.567SoilTestedbydropping3to5cmcuboidandangulargraniterockfragmentsontoslopesHongKong0.4530.737Shotcrete0.4870.910Rockslope0.5000.950BedrockReferencedfromtestscarriedoutbyBarbierietal.ItalcementiworksatCastellammarediStabia(northernslopeoftheSorrentinePeninsula),andtheareaofAtrani.0.3500.850BedrockcoveredbylargeblocksdiStabia(northernslopeoftheSorrentinePeninsula),andtheareaofAtrani.0.3000.700Debrisformedbyuniformdistributedelements0.2500.550Soilcoveredbyvegetation0.5300.990Cleanhardbedrock0.4000.900Asphaltroadway0.3500.850Bedrockoutcropswithhardsurface,largeboulders0.3200.820Taluscover0.3200.800Taluscoverwithvegetation0.3000.800Softsoil,somevegetation0.3700.420SmoothhardsurfacesandpavingDevelopedbyobservationandliteraturereviewColordado,USA0.3300.370Mostbedrockandboulderfields0.3000.330Talusandfirmsoilslopes0.2800.300Softsoilslopes0.8700.920Smoothhardsurfacessuchaspavementorsmoothbedrocksurfaces0.8300.870Mostbedrocksurfacesandtaluswithnovegetation0.8200.850Mosttalusslopeswithsomelowvegetation0.8000.830Vegetatedtalusslopesandsoilslopeswithsparesvegetation0.7800.820Brushcoveredsoilslope0.5300.0400.9900.040CleanHardBedrocka)rolledmanyrocksdowntheslopetoverifyusedvaluesb)comparisontohistoricalrockfalleventsatsiteMountainroad,nearBolzano,Sothtyrol,Italy0.3500.0400.8500.040Bedrockoutkrop0.3200.0400.8200.040Taluscover0.3200.0400.8000.040Taluswithvegetation0.4000.0400.9000.040Asphaltpaving0.5300.0400.9900.040CleanHardBedrockdefaultprogramvaluesused170mdeepopenpit,Tasmania,Australia(overallpitanglebetween55and65degrees)0.3500.0400.8500.040Bedrockoutcrop0.4800.1900.5300.170Concreteinversecalculationofpaths-standarddeviationsseemedtolargeTakamatsu,Japan0.4700.3000.5500.230WeatheredRock0.4800.0000.5300.000Concreteinversecalculationofpaths,roughnessof7.9degreesforconcrete,9.3forrock0.4700.0000.5500.000WeatheredRock0.8500.0000.5300.000Concreteinversecalculationofpaths1.0000.0000.5500.000WeatheredRock0.5300.0400.9900.040BedrockEstimation,blockdiameters10to30cmFjordvalley,StateofSognogFjordane,Norway0.5000.0600.7000.060Blockfield0.5000.0600.6500.060Blockfieldwithbushesandsmalltrees0.5000.0600.5000.060Blockfieldwithforest0.3000.0600.8000.060Top-soilwithvegetation0.4000.0400.9000.040Asphaltpaving0.3500.0400.8500.040Gravelroad0.5000.800Sparsleyforestedslopeiscoveredbyaveneerofveryfineweatheredtalusderivedfromweakshistoseunitsunderlyingthelimestonecap.CalculatedfromhistoricrockfallSunnybrae,(interiorof)BritishColombia,Canada0.5000.800Limestoneonbareuniformtalusslopeformedofbasaltfragmentswithamodalsizeof5cm.CalculatedfromhistoricrockfallHedley,(southerninteriorof)BritishColombia,Canada0.7000.900rectangularbolderofmetamorphosedtuffonbarerockandasteepsnowcoveredshelf.CalculatedfromhistoricrockfallSquamishHighway,northofVancouverBritishColombia,Canada