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Volume 11
Issue 19
10.3390/app11198962
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Article

Feasibility of Artificial Slope Hazards Identification in Regional Mountainous Highway Using SBAS-InSAR Technique: A Case Study in Lishui, Zhejiang

by
Zhi Hu
1,2,
Danqiang Xiao
1,2,
Wei Zhan
1,2,*,
Yang Yu
3,
Yiqiang Yu
1,2,
Xin Yan
1,2 and
Chunmei Pan
4
1
Key Laboratory of Road and Bridge Detection and Maintenance Technology Research of Zhejiang Province, Hangzhou 310023, China
2
Zhejiang Scientific Research Institute of Transport, Hangzhou 310023, China
3
Ocean College, Zhejiang University, Zhoushan 316021, China
4
Lishui Management Center, Zhejiang Communications Investment Expressway Operation Management Co., Ltd., Lishui 323000, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(19), 8962; https://doi.org/10.3390/app11198962
Submission received: 25 August 2021 / Revised: 20 September 2021 / Accepted: 24 September 2021 / Published: 26 September 2021
(This article belongs to the Section Transportation and Future Mobility)
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Abstract

Safety status of artificial slopes is significant for the operation and maintenance of highway to mitigate the risk; thus, slope hazard identification is necessary. In order to realize large-area and low-cost application for regional highway, taking the Longqing Highway (length of 55 km) as a case study, the SBAS-InSAR (Small Baseline Subset-Interferometric Synthetic Aperture Radar) technique is adopted to detect the ground deformation and conduct hazard identification based on slope dip, aspect, geological data and historical hazard record. Field survey is carried out to verify the identified potential hazards. Results show that the detected potential hazards are distributed mainly in the areas consisting of granite residual and the Quaternary soil. Six potential hazards identified by the SBAS-InSAR-based method are roughly in accordance with the on-site verification. It is suggested that the SBAS-InSAR technique has the ability to obtain the slope deformation accurately and reveal the safe condition of the slopes. The SBAS-InSAR technique can be suitable for assistance in regional highway slope inspection.
Keywords: artificial slope; hazard identification; mountainous highway; SBAS-InSAR; field verification artificial slope; hazard identification; mountainous highway; SBAS-InSAR; field verification

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MDPI and ACS Style

Hu, Z.; Xiao, D.; Zhan, W.; Yu, Y.; Yu, Y.; Yan, X.; Pan, C. Feasibility of Artificial Slope Hazards Identification in Regional Mountainous Highway Using SBAS-InSAR Technique: A Case Study in Lishui, Zhejiang. Appl. Sci. 2021, 11, 8962. https://doi.org/10.3390/app11198962

AMA Style

Hu Z, Xiao D, Zhan W, Yu Y, Yu Y, Yan X, Pan C. Feasibility of Artificial Slope Hazards Identification in Regional Mountainous Highway Using SBAS-InSAR Technique: A Case Study in Lishui, Zhejiang. Applied Sciences. 2021; 11(19):8962. https://doi.org/10.3390/app11198962

Chicago/Turabian Style

Hu, Zhi, Danqiang Xiao, Wei Zhan, Yang Yu, Yiqiang Yu, Xin Yan, and Chunmei Pan. 2021. "Feasibility of Artificial Slope Hazards Identification in Regional Mountainous Highway Using SBAS-InSAR Technique: A Case Study in Lishui, Zhejiang" Applied Sciences 11, no. 19: 8962. https://doi.org/10.3390/app11198962

APA Style

Hu, Z., Xiao, D., Zhan, W., Yu, Y., Yu, Y., Yan, X., & Pan, C. (2021). Feasibility of Artificial Slope Hazards Identification in Regional Mountainous Highway Using SBAS-InSAR Technique: A Case Study in Lishui, Zhejiang. Applied Sciences, 11(19), 8962. https://doi.org/10.3390/app11198962

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