High-difference Gravity Abnormal Modification is Being Applied in a Bid Section of the Sichuan-Tibet Railway
The height difference of the Sichuan-Tibet Railway fluctuates greatly,and the gravity anomalies and changes in the cross-sec-tional mountainous areas are large.The correction value of gravity anomalies is much greater than the measurement error.If the loop is closed from different levels of routes,the level surface must be corrected in parallel,including the correction of high-difference gravity anomalies.
万方数据
维普
