低应变反射波法在桥梁工程桩检测中应用

(,,350005),,,,,,,,,,,,,,,,,,,1111Ë3Z6U1500mm,3615m,C25(,),PIT,(1),,,,,3m4m,3m,(2),,,,1121,U1200mm,36m,C25PIT,(3),11m,,,10m,,10m751GeologyofFujian:2004210204:(19532),,,©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.13Z6Fig11Diagramshowingthefirst-timereflectedwavesofdetectingtheNo13Z6foundationpile23Z6Fig12Diagramshowingthesecond-timereflectedwavesofdetectingtheNo13Z6foundationpile113Ê2+5331343C,U1300mm,4111m,C25:013m115m,É1110m1410m,Ê2218m3013m,016m210m,510m817m,,PIT,(4),35m31Fig13DiagramshowingthereflectedwavesofdetectingtheNo11foundationpile43CFig14DiagramshowingthereflectedwavesofdetectingtheNo13Cfoundationpile39130m40190m,kt(5)Ë,38149m,100%,9914%,,,,,,,,85GeologyofFujian24©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.53CFig15DiagramshowingtheultrasoundtransmittingwavesofdetectingtheNo13foundationpile2(1),(JGJ10622003)(JIOI9822002),(2),;,,,,(3),,,,,,(4),(5),,,,,,,,ApplicationoftheLow-strainReflectionMethodonDetectingPilesintheBridgeEngineeringWuJianzhong(FuzhouGeothermManagementOffice,Fuzhou,350005)AbstractThepaperfocusesontheapplicationofadynamicmeasureofthelow-strainreflectionmethodondetectinglarge2diameterdrilledandgroutedpilesinthebridgeconstruction1Someengineeringexamplesaretakenherein1Bycontrastwiththetestingresultsfromdifferentdetectionmethods,itisshownthatthelow2strainreflectionmethodisveryeffectiveondetectingfoundationpilesinthemunicipalengineering1Keywordslow2strainreflectionmethod,bridgeworkpile,detection951:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.