超声脉冲透射法在灌注桩完整性检测中的应用

Application of Ultrasonic Pulse Transmission Method to Integrity Inspection of Cast-in-Place Pile

随着灌注桩的桩长、桩径和桩的承载力的增大,过去常用静载压桩检验桩的完整性和承载力已很难实现,桩基小应变对于这样的灌注桩也难较好地进行评估。文章就店忠路马河桥桩基采用超声脉冲检验法检验灌注桩完整性作简要阐述。

With the increase of pile length, enlargement of pile diameter and the enhancement of pile bearing capacity, the dead-load pressed pile that was commonly used in the past to inspect the integrity and bearing capacity of pile is proved no longer effective, and besides the small strain at the pile foundation also makes it hard to be evaluated. This paper makes brief statement of using ultrasonic pulse transmission method to inspect the integrity of the cast-in-place pile in the pile foundation of Mahe Bridge along Dianzhong Road.