Emergency investigation of transmission tower landslide based on comprehensive remote sensing technologies: a case study in Lixian County, Sichuan Province, China

Xianghang Bu; Fan Liu; Shuqi Li; Ling Chen; Yingyuan Li; Jing Yang

doi:10.1117/12.2668068

23 February 2023 Emergency investigation of transmission tower landslide based on comprehensive remote sensing technologies: a case study in Lixian County, Sichuan Province, China

Xianghang Bu, Fan Liu, Shuqi Li, Ling Chen, Yingyuan Li, Jing Yang

Author Affiliations +

Proceedings Volume 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022); 125512I (2023) https://doi.org/10.1117/12.2668068
Event: Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 2022, Changchun, China

Abstract

In July 2020, the 11 # tower of the 220kV Mengwen transmission line in Lixian County, Sichuan Province was significantly deformed due to a landslide, which seriously threatened the operation safety of the transmission line. Satellite optical images, satellite InSAR data, UAV images, and ground survey were integrated to investigate and evaluate the landslide. The tower is located at the shoulder of the front edge of an ancient landslide and five small soil landslides with signs of deformation are developed at the front edge of the ancient landslide. The slope presents seasonal deformation characteristics. In May 2020, there was a sudden increase in the deformation rate, and the overall deformation trend increased compared with previous years. It is recommended to monitor the deformation in the rainy season, and carry out the relocation as soon as possible after the rainy season. This case study has proved the effectiveness of spaceborne optical remote sensing technology, spaceborne InSAR, airborne photography technology, and ground survey means in the detailed investigation and risk assessment of tower landslides.

Citation Download Citation

Xianghang Bu, Fan Liu, Shuqi Li, Ling Chen, Yingyuan Li, and Jing Yang "Emergency investigation of transmission tower landslide based on comprehensive remote sensing technologies: a case study in Lixian County, Sichuan Province, China", Proc. SPIE 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 125512I (23 February 2023); https://doi.org/10.1117/12.2668068

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