钢筋混凝土非实心圆柱体磁异常特征

GEOMAGNETIC ANOMALY FEATURES OF HOLLOW FERROCONCRETE CYLINDERS

利用磁法勘探技术中体积分方法,求出了钢筋混凝土非实心圆柱体磁异常各分量的解析表达式,画出了柱体中心垂直分量剖面图及其平面等值线图,进而获得了该类圆柱体磁异常的分布特征。然后,就其高度和位置进行了反演分析,并研究了磁测高度与该类圆柱体磁异常之间的关系;其结论对考古、工程勘查和军事目标的侦察与反侦察都具有理论与应用价值。

In this paper, the magnetic exploration technology is applied to the geomagnetic anomaly analysis of hollow ferroconcrete cylinders. By using the method of volume integral, the analytic equations of various components of the geomagnetic anomaly are formulated. And then the central section, the planar isogram and the three-dimensional map of the geomagnetic anomaly vertical component Za are drawn. Furthermore, the distribution features of the magnetic anomaly are detected. In addition, this paper has analyzed inversion problems on the height and the site of hollow ferroconcrete cylinder, and studied the relationship between the altitude of magnetic survey and the magnetic anomaly. The results are theoretically and practically useful in archaeology, engineering exploration and such military fields as the reconnaissance and anti-reconnaissance of this type of objects.