Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR
Bridge foundation settlement monitoring is crucial for infrastructure safety management, as uneven settlement can lead to stress redistribution, structural damage, and potentially catastrophic collapse. While traditional contact sensors provide reliable measurements, their deployment is labor-intens...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/17/2/248 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832587543568187392 |
|---|---|
| author | Kaixuan Zhang Weifo Xiao Haojie Zhu Shaowei Ning Shenjiang Huang Dongxing Jin Rong A Bhesh Raj Thapa |
| author_facet | Kaixuan Zhang Weifo Xiao Haojie Zhu Shaowei Ning Shenjiang Huang Dongxing Jin Rong A Bhesh Raj Thapa |
| author_sort | Kaixuan Zhang |
| collection | DOAJ |
| description | Bridge foundation settlement monitoring is crucial for infrastructure safety management, as uneven settlement can lead to stress redistribution, structural damage, and potentially catastrophic collapse. While traditional contact sensors provide reliable measurements, their deployment is labor-intensive and costly, especially for long-span bridges. Current remote sensing methods have not been thoroughly evaluated for their capability to detect and analyze complex foundation settlement patterns in challenging environments with multiple influencing factors. Here, we applied Small Baseline Subsets Synthetic Aperture Radar Interferometry (SBAS-InSAR) technology to monitor foundation settlement of a long-span bridge. Our analysis revealed distinct deformation patterns: uplift in the north bank approach bridge foundation and the left-side main bridge foundation (maximum rate: 36.97 mm/year), concurrent with subsidence in the right-side main bridge foundation and south bank approach bridge foundation (maximum rate: 35.59 mm/year). We then investigated the relationship between these settlement patterns and various environmental factors, including geological conditions, Sediment Transport Index (STI), Topographic Wetness Index (TWI), precipitation, and temperature. The observed settlement patterns were attributed to the combined effects of stratigraphic heterogeneity, dynamic hydrological conditions, and seasonal climate variations. These findings demonstrate that SBAS-InSAR technology can effectively capture complex bridge foundation deformation processes, offering a cost-effective alternative to traditional monitoring methods. This advancement in bridge monitoring technology could enable more widespread and frequent assessment of bridge foundation stability, ultimately improving infrastructure safety management. |
| format | Article |
| id | doaj-art-01ae012983d9417ea549ecf5bf0949b3 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-01ae012983d9417ea549ecf5bf0949b32025-01-24T13:47:51ZengMDPI AGRemote Sensing2072-42922025-01-0117224810.3390/rs17020248Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSARKaixuan Zhang0Weifo Xiao1Haojie Zhu2Shaowei Ning3Shenjiang Huang4Dongxing Jin5Rong A6Bhesh Raj Thapa7College of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaCollege of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaUniversal Engineering and Science College, Pokhara University, Lalitpur 44700, NepalBridge foundation settlement monitoring is crucial for infrastructure safety management, as uneven settlement can lead to stress redistribution, structural damage, and potentially catastrophic collapse. While traditional contact sensors provide reliable measurements, their deployment is labor-intensive and costly, especially for long-span bridges. Current remote sensing methods have not been thoroughly evaluated for their capability to detect and analyze complex foundation settlement patterns in challenging environments with multiple influencing factors. Here, we applied Small Baseline Subsets Synthetic Aperture Radar Interferometry (SBAS-InSAR) technology to monitor foundation settlement of a long-span bridge. Our analysis revealed distinct deformation patterns: uplift in the north bank approach bridge foundation and the left-side main bridge foundation (maximum rate: 36.97 mm/year), concurrent with subsidence in the right-side main bridge foundation and south bank approach bridge foundation (maximum rate: 35.59 mm/year). We then investigated the relationship between these settlement patterns and various environmental factors, including geological conditions, Sediment Transport Index (STI), Topographic Wetness Index (TWI), precipitation, and temperature. The observed settlement patterns were attributed to the combined effects of stratigraphic heterogeneity, dynamic hydrological conditions, and seasonal climate variations. These findings demonstrate that SBAS-InSAR technology can effectively capture complex bridge foundation deformation processes, offering a cost-effective alternative to traditional monitoring methods. This advancement in bridge monitoring technology could enable more widespread and frequent assessment of bridge foundation stability, ultimately improving infrastructure safety management.https://www.mdpi.com/2072-4292/17/2/248SBAS-InSARuneven settlementbridge foundationdeformation monitoring |
| spellingShingle | Kaixuan Zhang Weifo Xiao Haojie Zhu Shaowei Ning Shenjiang Huang Dongxing Jin Rong A Bhesh Raj Thapa Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR Remote Sensing SBAS-InSAR uneven settlement bridge foundation deformation monitoring |
| title | Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR |
| title_full | Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR |
| title_fullStr | Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR |
| title_full_unstemmed | Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR |
| title_short | Analysis of Uneven Settlement of Long-Span Bridge Foundations Based on SBAS-InSAR |
| title_sort | analysis of uneven settlement of long span bridge foundations based on sbas insar |
| topic | SBAS-InSAR uneven settlement bridge foundation deformation monitoring |
| url | https://www.mdpi.com/2072-4292/17/2/248 |
| work_keys_str_mv | AT kaixuanzhang analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT weifoxiao analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT haojiezhu analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT shaoweining analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT shenjianghuang analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT dongxingjin analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT ronga analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar AT bheshrajthapa analysisofunevensettlementoflongspanbridgefoundationsbasedonsbasinsar |