CAJ | 학술논문

通过分析超声波透射法和低应变反射法这2种动测法的基本原理，探讨其各自的优缺点；结合桩基完整性检测实践，研究发现影响超声法波形数据的外部因素有：声测管偏斜、声测管接头，影响低应变法波形数据采集的外部因素有：传感器、激振方式、桩头、桩周土。根据工程实例并结合钻芯芯样对这2种方法的检测效果进行了研究，认为在条件许可的情况下，可将这2种方法结合起来进行分析以减小其检测的局限性。
통과분석초성파투사법화저응변반사법저2충동측법적기본원리，탐토기각자적우결점；결합장기완정성검측실천，연구발현영향초성법파형수거적외부인소유：성측관편사、성측관접두，영향저응변법파형수거채집적외부인소유：전감기、격진방식、장두、장주토。근거공정실례병결합찬심심양대저2충방법적검측효과진행료연구，인위재조건허가적정황하，가장저2충방법결합기래진행분석이감소기검측적국한성。
This paper analyzes basic principle of ultrasonic transmission method and low-strain reflected wave method, and studies their respective advantages and disadvantages. Based on the pile foundation integrity test, the research indicates that the external factors that influence the ultrasonic waveforms include the leaning of acoustic pipe and the joint of acoustic pipe,while the external factors that influence the low-strain reflected waveforms include detecting sensors, exciting models, pile head and soil surrounding pile. Based on the engineering project and core-drilling sample ,detection effect of the two methods is researched. The results show that combined analysis of two methods can reduce the impact of limitations of each method and have a good detection effect, when conditions permit.