旁孔透射法检测混凝土桩桩身完整性研究

Research on the Detection of Concrete Pile Body Integrity by Side Hole Transmission Method

近年来,随着建设工程质量监管的不断加强,旁孔透射法已逐步开始运用于一些高架桥梁基础或旧城改造房屋基础检测,但目前仅用于检测这些基础桩基的长度,对于桩基的完整性较少涉及。鉴于桩基也有完整性检测的需求,本文系统且深入地研究旁孔透射法检测基桩完整性的原理,并结合3个工程案例,通过现场采集数据,并用低应变、声波透射法进行比对,从而验证这一方法的合理性与准确性,助力该方法后续的进一步推广。

In recent years,with the continuous strengthening of construction quality supervision,the detection of side-hole transmission method has gradually begun to be applied to the detection of some elevated bridge foundations or old city reconstruction housing foundations.However,it is currently only used to detect the length of these foundation pile foundations,and there is less involvement in the integrity of the pile foundations.Given the need for integrity testing of these pile foundations,this article will systematically and thoroughly study the principle of using the side-hole transmission method to detect the integrity of foundation piles.By combining three engineering cases,data collected on-site,and comparing it with low-strain and acoustic transmission methods,the ratio‐nality and accuracy of this method will be verified to help further promote the method.