Research on the Method of Safety Monitoring of Super-long Sea-crossing Bridges
Jiang Chen-guang, He Yong, Yongbo Wang, Peng Jian-guo, Wang Zhong-hua · Hydrographic Surveying and Charting · 2005
The position fixing in construction and safety monitoring of super-long sea-crossing bridges is very difficult.RTK GPS technique has to be used.Nevertheless,RTK GPS technique is not efficacious enough in position fixing for super-long sea-crossing bridge construction.The safety monitoring precision for the super-long sea-crossing bridges is much higher than that of general construction positioning.Some techniques should be used to resolve the difficulty of structures safety monitoring.It puts forward some new ideas on reasonably setting up three-dimensional surveying control network.The problems concerning projection mode,structure of surveying control network and surveying method have all been taken into complete consideration.This paper presents the basic design and constructing of the three-dimensional surveying control system for the sea-crossing bridges building in China now.