摘要：Underground pipeline detections before municipal constructions are of great significance to the modernization of urban planning and management. The main task of underground pipeline magnetic surveys is to identify anomalies contained within the total magnetic field and obtain estimations of the planimetric position and depth of the pipeline causing the anomalies. We apply a simple and fast method, magnetic tilt angle, to estimate the spatial location and depth of underground pipelines. Simulation results show that the 90°contour of the magnetic tilt angle map delineates the planimetric position of an underground pipeline whilst the depth to the pipeline is the distance between the 90°and the 0°contours. In parallel pipeline detections, the magnetic anomalies produced by the deeper pipeline are also swamped in the large anomalies produced by the shallower pipeline. Further research results show that the magnetic tilt angle can obtain the accurate estimations of the planimetric position and depth of the shallower pipeline with any ratio of the axis spacing to the total depth of parallel pipelines, but only when the ratio is greater than 1.4 can it obtain the accurate estimations of the planimetric position and depth of the deeper pipeline.
© 2019 SEG

卷、期、页：p1774-1778

发表日期：2020-01-01

收录情况：EI（工程索引）

发表期刊名称：SEG International Exposition and Annual Meeting 2019

通讯作者：李彩芳,翟颖,范佳佳

第一作者：刘得军

论文类型：会议论文

论文概要：李彩芳,刘得军,翟颖,范佳佳，Magnetic tilt angle: A simple depth estimation method for underground pipelines，SEG International Exposition and Annual Meeting 2019，2020，p1774-1778

论文题目：Magnetic tilt angle: A simple depth estimation method for underground pipelines