Speaker: Rui ZHANG

Affiliation: Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University

Academic title: Associate Professor

Honorary title: The Member of the Radar Remote Sensing Professional Committee in the China Remote Sensing Application Association (CARSA)

Abstract:

The geological environment of the large railway corridor is complex and variable. And geological disasters occur frequently. These hazards endanger the safety and stability of bridges, tunnels, roadbeds and tracks. They bring great threats and challenges to the safe operation of high-speed railways. Therefore, it is crucial to carry out the temporal monitoring and early warning of geologic disasters in the railway. In order to meet the requirement of InSAR disaster monitoring applications in railway projects, we focus on the problem of inconsistency in monitoring reference and accuracy among different image data. Furthermore, we have developed models and algorithms for projection correction, solving the contradiction between one-dimensional deformation observations and the accurate representation of complex ground deformation. The related outputs are widely used in the preliminary geological survey and construction-period monitoring in Beijing-Shanghai, Beijing-Tianjin, Beijing-Xiong'an, Beijing-Zhangjiakou, Sichuan-Tibet and Xian-Chengdu high-speed railways, respectively.

Biography:

Rui Zhang was a postdoctoral researcher at the Chinese University of Hong Kong from 2012 to 2014. He is currently an Associate Professor and Doctoral Supervisor at Southwest Jiaotong University, and is mainly engaged in the application of synthetic aperture radar interferometry (InSAR) for ground deformation monitoring. He has presided over the National Key R&D Program, the National Natural Science Foundation of China (NSFC), the National Railway Group's major scientific research programs, and a number of international remote sensing cooperation programs. He has published more than a hundred papers and won provincial & ministerial-level scientific and technological progress awards four times.