声波透射法对桥基桩质量检测的判别及分析

17120033SoilEng.andFoundationVol.17No.1Mar.2003X1231(1.,430071;2.,430071;3.,457001),,,,:TU473:A:100423152(2003)01200612051(),,(),,,,,,,2,:Vp=E(1-)(1+)(1-2)(1):E;;()(),;,,31.2m,1.5m,2.0m,350mm,,,,7,(ABC),A-BA-CB-C(),,A-BA-CB-C,40mm,,10mm,(1),,X:2002-07-11©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,(),,,,,,,,,,,,,,,,,,,:,()(),,,(a)(b)(1)(c)(2)(d)14(JGJ/T93-95),K12t2,,,,,,,(2),,,,,(3)3,:(1),,;(2),,;(3),,()262003©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(1),,(1020s),;,,4,(2),(3),AB2682807,268280,272274276,270278,5,27027840mm,,,,;,,,,,4AB5654,,,,,,,:,;,;361:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,;,,,:,,;,,;,:,;,;,,,,,,,;6,,,:1.5m,C25,,7000kN:r0SRR=b(1rcRaA+1rsRgAg)(2):r0,1.2;S,7000kN;R;,0.95,Ra,C2514.5N/mm2;A;rb,0.95;rc,1.25;Rg;Ag,,A=3.141.52=1.767m2,,(6)Ra6.58N/mm2C15,,,(2)A0.80m21/2,,Z,Z4.0/=5mbEI(3):;E;C252.8104MPa;I,1.5m,I0.2485m4;m,m;b,b=0.9(d+1)=2.25m;d1.5m,S4.0/,MQ,,,,,(24mm),,,5,5,,7,,,,,,,462003©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,1[S].,1998.2[S].,1999.3.[M].,1993.DeterminationandAnalysisofSoundWavePenetrationinMonitoringPileFoundationYangMingliang1QuanYuanyuan2LiJianmin3JiangShangguo1(1.WuhanInst.ofRock&SoilMech.430071;2.HubeiTianyuEng.CostConsultantCo.Ltd430071)AbstractTheprinciple,methods,integrityanddefectandhowtocheckoutthebearingcapacityofdefectivepilesinbridgepiesfoundationsbyultrasounicpenetrationareanalyzed.Keywordsultrasonicpenetration,monitoringofpiles,pileintegrity(48),(3):,,,,1,.[M].,1981.2,.[M].,1994.3.[D].,2002.TheStressoftheAquiferofDrawdownChangesModelsZhaoQingping1DingPing(WuhanDesign&ResearchInst.ofSinocoalInter.Eng.Group.430071)AbstractThispaperanalyzedstressvariationoftheaquiferbydrawdown,andpresentedthreemodelsofstressvariationespecially,toanalyzevariationofeffectivestresspreciselyfigureoutthebydrawdown,andtheprecisiontocountorforecastgroundsettlementhasbeengreatlyincreased.KeywordsDrawdown,aquifer,stressvariation,model561:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.