Application of InSAR technology in auxiliary identification of expressway disasters

doi:10.13474/j.cnki.11-2246.2020.0254

Abstract

Abstract: In order to discover and identify hidden danger points of disasters as early as possible, this article takes the Kunming-Yuxi section of Kunmo expressway as an example. Firstly, based on PS-InSAR technology, and using 45 Sentinel-1 images to obtain the settlement rate map of the study area from 2018 to 2019. Then we use the method of cross-section analysis to analyze the serious settlement area, and identify the hidden trouble sections along the Kunmo expressway. Finally, this article makes some suggestions to further monitor these road sections. Studies have shown that the Kunming expressway generally shows a relatively gentle settlement trend, but there are three severe settlement areas. They are the sections in Xiejing village and Zhujing village, the junction of Kunmo expressway and Dongraocheng expressway, and the junction of Kunmo expressway and Jinxin highway. It prove that PS-InSAR technology can effectively detect hidden hazards along the highway.

Key words: PS-InSAR, surface deformation, disaster identification, highway, subsidence monitoring

CLC Number:

P237

XIONG Peng, ZUO Xiaoqing, LI Yongfa, XIE Wenbin, YOU Hong, WANG Zhihong. Application of InSAR technology in auxiliary identification of expressway disasters[J]. Bulletin of Surveying and Mapping, 2020, 0(8): 87-91.

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