高速铁路水准测量中正常水准面不平行及重力异常改正的必要性研究
发布时间：2018-12-21 09:08
【摘要】：根据某高速铁路隧道贯通后二等水准测量数据,分别对正常水准面不平行、重力异常未改正及改正后的数据进行闭合差统计、平差计算对比,提出了在纬差较大的高海拔山区进行两项改正的必要性。以后续的CPⅢ高程建网测量为例,验证了进行两项改正之后二等水准测量控制点高程的正确性。
[Abstract]:According to the secondary leveling data of a high speed railway tunnel, the closed difference statistics of the normal leveling plane, the uncorrected gravity anomaly and the corrected data are carried out respectively, and the adjustment calculation is compared. It is necessary to carry out two corrections in high altitude mountain areas with large latitude difference. As an example, the CP 鈪，
本文编号：2388702
[Abstract]:According to the secondary leveling data of a high speed railway tunnel, the closed difference statistics of the normal leveling plane, the uncorrected gravity anomaly and the corrected data are carried out respectively, and the adjustment calculation is compared. It is necessary to carry out two corrections in high altitude mountain areas with large latitude difference. As an example, the CP 鈪，
本文编号：2388702
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