钻孔灌注桩声波透射法、低应变法及钻芯法检测对比应用研究

Contrast Analysis of Checking-pile Results of the Low-strain Integrity Test 、the Cross-hole Sonic Logging Test and the Coredrilling Method in Bored Piles

结合工程现场检测实例,对低应变反射波法、声波透射法及钻芯法检测在基桩完整性检测中的应用做了对比分析。由于低应变反射波法自身的局限性,对于比较复杂的检测曲线,需要结合其它方法综合判断桩身完整性。通过工程实例证明了3种检测方法的互补性,使检测结果更为准确。

Contrast analysis of checking-pile results of the low-strain integrity test,the cross-hole sonic logging test and the coredrilling method in engineering practical detection. Due to the limitation of the low strain reflected wave method,the complex measured waveform curve needs to be combined with other comprehensive method to judge pile integrity. Through the engineering examples, it can prove that the complementarity of the three detection methods, the detection result is more accurate.