Through introducing the calculation of reinforcement cage dipole transient induced electromotive force with numerical simulation method, the spatial distribution characteristics has been analyzed and studied, the method to determine the length of the reinforcement cage by two peaks distance has been summed up. The meth- od is reliable and accurate through contrast experiment test being executed with the magnetic logging law to the model piles and engineering piles. Simultaneously it has been discovered that this method is more direct -vie- wing, easier to distinguish and and easv to promote, it has aui proved to be a kind of innovation. Because this method is economically feasible te remarkable social and acanomic hanafits%通过介绍数值模拟方法计算钢筋笼偶极瞬变感应电动势,分析研究其空间分布特征,总结出采用双峰距离确定钢筋笼长度的方法,与磁测井法对模型桩及工程桩的对比试验证明该方法准确可靠,并发现本方法更为直观、易于判别,不失为一种创新。本方法检测灌注桩钢筋笼长度经济可行,易于推广应用,社会和经济效益比较显著。
展开▼
