The Research On Deformation Monitoring Technology Of The Huge Highway Building

Deformation monitoring is an important measure for huge highway building to ensure their quality and security, and as an important part in the construction and management system.The new structure, new technique, new material appeared continuously, it puts forward the higher request towards deformation monitoring & control of huge highway building, not only need to monitor its outer deformation but also need to monitor its inside deformation and stress state. In domestic, there are cases that apply GPS, total station and leveler on the deformation monitoring of huge highway building. Compare with abroad, the means of the deformation monitoring is backward, the level of automation is low. Therefore, study deeply to apply high accuracy and intelligent advance instruments to collect data, solve new technique problem in practice, and set up consummate deformation monitoring system is very important.This paper associates the practice of construction monitoring & control of the main section of the Yayao overpass, carrying on a research to the key technology problem of deformation monitoring of huge highway building by applying Leica TCA2003 total station, digital leveler; vibrating wire sensor. In the first, it takes research on digital leveler and Leica TCA2003 total station in deformation monitoring, several experiment items for some concrete technique problems are designed, and some useful conclusions are obtained. It accumulates experience for deformation monitoring of huge building by applying high accuracy and intelligent advance instruments. Secondly, practical experience in install and test vibrating wire sensors is summed up. The method of data process is explored and putted into practice. It provides reference to the further analogous work. In the end, through practice of construction monitoring & control of the main section of the Yayao overpass, some technique problems in deformation monitoring is resolved, also explained that the high accuracy and intelligent instruments apply in deformation monitoring is broad prospects.We hope this paper will become the bases of the further research in the field.