安徽地质
安徽地質
안휘지질
GEOLOGY OF ANHUI
2014年
4期
294-295,320
,共3页
低应变%测桩%桩身缺陷
低應變%測樁%樁身缺陷
저응변%측장%장신결함
low strain%pile test%pile defect
低应变法检测桩身完整性，作为一种快速、经济、可靠的方法目前得以广泛应用。当桩身存在明显缺陷（缩径、扩径、离析、断桩等），传感器在接收到桩底反射信号前会记录下桩身缺陷的反射干扰，熟练掌握动测曲线的分析方法，则能够快速、准确的判断出桩身完整性。本文结合传统的行波理论知识，通过理论分析和图文说明，对低应变反射波法动测曲线常见缺陷给出理论分析，并结合工程实例加以验证。
低應變法檢測樁身完整性，作為一種快速、經濟、可靠的方法目前得以廣汎應用。噹樁身存在明顯缺陷（縮徑、擴徑、離析、斷樁等），傳感器在接收到樁底反射信號前會記錄下樁身缺陷的反射榦擾，熟練掌握動測麯線的分析方法，則能夠快速、準確的判斷齣樁身完整性。本文結閤傳統的行波理論知識，通過理論分析和圖文說明，對低應變反射波法動測麯線常見缺陷給齣理論分析，併結閤工程實例加以驗證。
저응변법검측장신완정성，작위일충쾌속、경제、가고적방법목전득이엄범응용。당장신존재명현결함（축경、확경、리석、단장등），전감기재접수도장저반사신호전회기록하장신결함적반사간우，숙련장악동측곡선적분석방법，칙능구쾌속、준학적판단출장신완정성。본문결합전통적행파이론지식，통과이론분석화도문설명，대저응변반사파법동측곡선상견결함급출이론분석，병결합공정실례가이험증。
Low-strain method for inspecting intactness of a pile is fast, economic and reliable and thus widely applied. When a pile has evident defects (hole shrinkage, hole enlargement, isolation, pile breakage, etc.), the sensor will record reflection interference from the pile defects before receiving reflected signal from pile bottom. Mastering analytical method of the dynamic test curve can decide the intactness of a pile quickly and accurately. With traditional traveling wave theory and knowledge, through theoretical analysis and graphic description, this paper theoretically analyzed common defects of the low-strain dynamic test curve and tested it with engineering example.
