【摘要】 磁测井法是检测灌注桩钢筋笼长度的常用方法，利用该检测技术可为存疑桩长或桩端部钢筋笼异常情况的判别提供重要依据。通过介绍磁测井法的基本工作原理和地下钢筋笼完整性测定方法，结合苏州某新建工程，对获取到的灌注桩钢筋笼磁异常曲线进行分析，检测结果证实了使用磁测井法在检测灌注桩钢筋笼长度领域的可行性和准确性，以及在工程监管领域的可推广性。更多还原

【Abstract】 The magnetic logging is a common method for measuring the length of steel reinforcement cage of the cast-in-place piles. The detection principle is to analyze the magnetic anomaly curve around the pile based on the distribution characteristics of the magnetic field around the pile to estimate the length of the entire steel reinforcement cage. The detection curve of the steel reinforcement cage with a good integrity is uniform and stable, and there will be reflected signals when passing through the pile bottom. Therefore, the detection method can provide an important basis for the identification of the abnormality of the steel reinforcement cage at the suspected pile length or pile end. By introducing the basic working principle of the magnetic logging method and measuring the integrity of the underground steel reinforcement cage, and combining with a new construction project in Suzhou, the magnetic anomaly curve of the steel reinforcement cage of the cast-in pile was analyzed. The test results confirmed the feasibility and accuracy of using the magnetic logging method in measuring the length of the steel reinforcement cage of the cast-in place pile, as well as its feasibility in the field of engineering testing and quality assurance.更多还原