Apply the cross-hole sonic inspection method to the pile integrity test, judging the degree of the defect by the data of sonic velocity, amplitude, PSD, et al. Then conform it by pile drilling test. The result matches well with the ultrasonic testing method. By doing it this way we can combine the theory with the pragmatic work together.
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韩雨,杨伟. 声波透射法在桥梁桩基检测中的案例分析[J]. 科学技术与工程, 2011, (7): . HANYU, YANGWEI. The analysis of the case which introduce the cross-hole sonic method[J]. Science Technology and Engineering,2011,(7).