【摘要】 介绍了跨孔透射法检测灌注桩桩身完整性的原理、方法和现场检测技术。通过现场检测实例,利用声波曲线判定桩身混凝土质量及缺陷的可疑位置,并采用PSD判据法进行辅助分析,从而达到判别桩身缺陷性质及范围的目的。结果表明:跨孔透射法判断基桩完整性,其检测过程简单、结果直观可靠,为桩身混凝土质量提供了一种有效的检测方法。更多还原

【Abstract】 The priciple test technology in site of ultrasonic transmission method for detecting integrity of large-diameter cast in place piles are introduced.and combining the engineering case,the qualityof pile body concrete and the possible positions of pile defects are detected by ultrasonic curve;and used the PSD criteria as aidedanalysis,the nature and range of pile defects are estimated.he result indicated:The cross hole transmission method judgment foundation pile integrity,its examination process is simple,result direct-viewing reliable.Thus,it is an effective inspection method for the quality of pile body concrete.更多还原