声波透射法在桥梁基桩质量检验中的应用

:10045716(2003)013102:TU47311+6:B,,(,210096):,,:;;1,,,,,,2111;2;3;4,,,,,,,,,,(1):t2tSt,St=t+2t:t=ni=1ti/n,:t=ni=1(ti-t)2/n:n;tiitiSt,,,(2):,qqD,qD=ni=1qi/n-6:qi();nqiqD,(3)PSD:,,PSDiKi:Ki=Si(ti-ti-1)=(ti-ti-1)2Hi-Hi-1:Sii-1it-H;ti,ti-1;Hi,Hi-1,i,Ki;,Ki(ti-ti-1)2,Ki3311246m,115m,,,PSD,3123118m,66m,AC1915m2640m/s,BC1915m3200m/s,,PSD,,1915m,313115m,48m8020031WEST-CHINAEXPLORATIONENGINEERINGseriesNo.80Jan.2003©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.223172414m,28003000m/s,,PSD,,,,,314115m,4315m,1m,,PSD,,4(1)RSSTO1C,,(2),,,(3),,,,3[1]1(JGJ/T93-95)[S]1:,19951[2]1RS-STO1C[R]120001[3]1[J]1,2001,31ApplicationofUltrasonicTransmissionMethodinFoundationQualityTestingZHANGZeng-zang,LIWei,CUIJie(CollegeofCivilEngineering,SoutheastUniversity,JiangsuNanjing210096)Abstract:Thebasicprincipleisintroducedofultrasonictransmissionmethod.Thedefectsoffoundationpilesaresummarized,andanalyzedfromcasecon2structions.Keywords:ultrasonictransmissionmethod;foundationpile;test23Jan.2003No.1©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.