CAJ | 학술논문

介绍了灌注桩钢筋笼长度检测目前常用的几种物探方法，结合场地适用条件及仪器研制情况，将磁测法作为检测项目开展的首选方法，利用混凝土、桩周岩土和钢筋笼之间的磁性差异，通过测量垂直磁场及磁梯度沿深度方向受钢筋笼影响的变化，判断了灌注桩钢筋笼长度，理论分析及工程实例表明，磁测法检测灌注桩钢筋笼长度是目前比较可靠且成熟的方法。
개소료관주장강근롱장도검측목전상용적궤충물탐방법，결합장지괄용조건급의기연제정황，장자측법작위검측항목개전적수선방법，이용혼응토、장주암토화강근롱지간적자성차이，통과측량수직자장급자제도연심도방향수강근롱영향적변화，판단료관주장강근롱장도，이론분석급공정실례표명，자측법검측관주장강근롱장도시목전비교가고차성숙적방법。
This paper introduces several geophysical prospecting methods for checking the cage length of cast-in-situ pile. According to the field condition and the development of instruments,magnetic method is selected as an effective method that the detection project carries out. Magnetic method is based on magnetic differences between concrete and reinforcement cage,rock-soil near pile to conclude the length of reinforcement cage by measuring the change of vertical magnetic field and magnetic gradient along the depth direction of reinforcement cage. Theoretical analysis and the engineering examples show that magnetic method is feasible and effective for checking the length of reinforcement cage of cast-in-situ pile.