平面变形监测控制网, 边角网, GNSS网, 北斗高精度监测, 第五轮定检

The method and operation of deformation benchmark calibration are related to the reliability of monitoring results of dam surface deformation. Based on analysis of the application of calibration technology for horizontal deformation base point to more than 200 hydropower dams, this paper summarizes the main problems existing in the operation of the triangulateration network and introduces the current application of GNSS network. Moreover, combined with the development of Beidou and GNSS monitoring technology, it is suggested to prioritize the use of automated means for the development of benchmark calibration in the future. In addition to the inverted vertical lines, continuous monitoring using GNSS net and combination of GNSS and geodesy technology can also be studied.

horizontal deformation monitoring control network, triangulateration network, GNSS network, Beidou high precision monitoring, the fifth round of regular inspection