隧道围岩弹性波测试技术浅析

33,320086HighwayEngineeringVol.33,No.3Jun.,2008[]20080420[](1973),,,,,(,410015)[],,,,,[];;;;[]U451+.2[]B[]10021205(2008)03012503InitialAnalysisonElasticWaveMeasurementtoTunnelSurroundingRocksZHANGMin,HUFan(HunanCommunicationResearchInstitute,Changsha,Hunan410015,China)[Keywords]tunnel;surroundingrock;elasticwavemeasurement;crocodilecoefficient;sur2roundingrockloosecircle,,,,,,,,1,,:,();,(),,,,:P(Prima2ry),,;S(Secondary),,(P),,Vp:Vp=+2=E(1-)(1+)(1-2):E();;,22.1,,5060mm,23m,1.02.0m,,,,,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()(),25cm,25cm,222.2,,,,KK,,1K=VmVc2:Vm;Vc1K0.750.750.452030cm0.452030cm2.3,,,,,,(),,,,,VL,,(),()333,Zk188+490Zk189+160,670m;Yk188+425Yk189+184,759m621©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,1(Yk189+140)221#/m/mVp/(kms-1)/dB2.504.5356.22.254.5958.12.004.6153.71.754.5750.21.061.504.6151.41.254.6349.81.004.8660.60.754.7354.30.503.1536.70.25/(kms-1)4.48()K:Vm=4.48km/s,Vc=5.18km/sK=VmVc2=4.485.182=0.75,3431#0.750.750.452030cm30.452030cm:341#,,,,,01.0m,2(Yk189+128)4()K:Vm=4.69km/s,Vc=5.18km/sK=VmVc2=4.6951.82=0.8242#/m/mVp/(kms-1)/dB2.502.254.4968.22.004.7466.31.754.8662.81.061.504.8360.41.254.8155.11.004.7859.30.754.5356.10.504.6160.50.254.5258.3/(kms-1)4.69,5552#0.7530.750.452030cm0.452030cm:352#,,,,,,,4,,,[][1].[M].:,2002[2]JTGD702004,[S].721©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.