【摘要】 地下磁性体空间分布的精确探测是地质工程领域具有挑战性的科学技术难题之一。传统的地面磁测方法由于纵向分辨率不够,往往探测精度达不到要求。文章主要分析了厚板状体模型在不同磁化方向、不同方位以及钻孔穿过磁性体时的磁场特征,研究了井中磁测判断磁性体空间位置和产状的方法。该方法在南京某矿区ZK01孔进行应用,提高了反演的准确性,为下一步地质工作提供参考。更多还原

【Abstract】 Accurate detection of spatial distribution of an underground magnetic body is one of sci-tech challenges in the field of geological engineering. Due to the lack of vertical resolution, traditional ground magnetic survey often fails to meet the detection accuracy. This paper mainly analyzes the model of a thick tabular body for its magnetic field characteristics in different magnetization directions, different orientations, and the characteristics when a borehole cuts through the magnetic body, and studies the method of judging the spatial position and occurrences of the magnetic body based on magnetic logging. Application of this method to the borehole ZK01 of a mining area in Nanjing has improved the accuracy of inversion and provided a reference for further geological work.更多还原