Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology
The Buzhaoba open-pit mine is an important lignite production base in Yunnan Province, China. As mining activities have continued to progress, varying degrees of deformation have occurred in different areas of the Buzhaoba open-pit mine, threatening normal coal production and mine safety. To compreh...
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MDPI AG
2024-11-01
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| author | Yu Zheng Zhifang Zhao Min Zeng Dingyi Zhou Xiaotong Su Dingshuai Liu |
| author_facet | Yu Zheng Zhifang Zhao Min Zeng Dingyi Zhou Xiaotong Su Dingshuai Liu |
| author_sort | Yu Zheng |
| collection | DOAJ |
| description | The Buzhaoba open-pit mine is an important lignite production base in Yunnan Province, China. As mining activities have continued to progress, varying degrees of deformation have occurred in different areas of the Buzhaoba open-pit mine, threatening normal coal production and mine safety. To comprehensively investigate the characteristics of surface deformation and its influencing factors at the Buzhaoba open-pit mine, this study employed the following methods: first, the SBAS-InSAR technique was used to process 86 Sentinel-1A ascending and descending orbit remote sensing images from 2020 to 2023, obtaining LOS surface deformation information for the mining area; second, leveling observation data were used to validate the accuracy of the SBAS-InSAR results, and based on the principle of two-dimensional deformation decomposition, the east–west and vertical surface deformation information of the mining area was obtained; finally, the temporal variation characteristics and influencing factors of the Buzhaoba open-pit mine were analyzed. The study results indicate that (1) the maximum LOS surface deformation rates in the ascending and descending orbits of the mining area were −42.1 mm/a and −114.0 mm/a, respectively; (2) the correlation coefficient between the SBAS-InSAR monitoring results and the leveling observation results was 0.938, confirming the reliability of the SBAS-InSAR monitoring results; (3) the maximum east–west and vertical deformation rates obtained from the two-dimensional deformation decomposition were −103.4 mm/a and −189.2 mm/a, respectively, with the surface deformation in the east–west direction being more pronounced; (4) internal factors such as stratigraphic lithology and geological structures, as well as atmospheric rainfall, have a certain degree of influence on the surface deformation of the Buzhaoba open-pit mine. Therefore, the research results of this study can provide important data support and theoretical references for safety management and disaster prevention in the mining area. |
| format | Article |
| id | doaj-art-d262a126d6f24883a761703c84ddea9e |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-d262a126d6f24883a761703c84ddea9e2024-11-26T18:19:51ZengMDPI AGRemote Sensing2072-42922024-11-011622417710.3390/rs16224177Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR TechnologyYu Zheng0Zhifang Zhao1Min Zeng2Dingyi Zhou3Xiaotong Su4Dingshuai Liu5Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaSchool of Earth Sciences, Yunnan University, Kunming 650500, ChinaSchool of Earth Sciences, Yunnan University, Kunming 650500, ChinaInstitute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaInstitute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, ChinaYunnan Xiaolongtan Mining Bureau Co., Ltd., Kaiyuan 661600, ChinaThe Buzhaoba open-pit mine is an important lignite production base in Yunnan Province, China. As mining activities have continued to progress, varying degrees of deformation have occurred in different areas of the Buzhaoba open-pit mine, threatening normal coal production and mine safety. To comprehensively investigate the characteristics of surface deformation and its influencing factors at the Buzhaoba open-pit mine, this study employed the following methods: first, the SBAS-InSAR technique was used to process 86 Sentinel-1A ascending and descending orbit remote sensing images from 2020 to 2023, obtaining LOS surface deformation information for the mining area; second, leveling observation data were used to validate the accuracy of the SBAS-InSAR results, and based on the principle of two-dimensional deformation decomposition, the east–west and vertical surface deformation information of the mining area was obtained; finally, the temporal variation characteristics and influencing factors of the Buzhaoba open-pit mine were analyzed. The study results indicate that (1) the maximum LOS surface deformation rates in the ascending and descending orbits of the mining area were −42.1 mm/a and −114.0 mm/a, respectively; (2) the correlation coefficient between the SBAS-InSAR monitoring results and the leveling observation results was 0.938, confirming the reliability of the SBAS-InSAR monitoring results; (3) the maximum east–west and vertical deformation rates obtained from the two-dimensional deformation decomposition were −103.4 mm/a and −189.2 mm/a, respectively, with the surface deformation in the east–west direction being more pronounced; (4) internal factors such as stratigraphic lithology and geological structures, as well as atmospheric rainfall, have a certain degree of influence on the surface deformation of the Buzhaoba open-pit mine. Therefore, the research results of this study can provide important data support and theoretical references for safety management and disaster prevention in the mining area.https://www.mdpi.com/2072-4292/16/22/4177the Buzhaoba open-pit mineinfluencing factorsSBAS-InSARSentinel-1Atwo-dimensional deformation decomposition |
| spellingShingle | Yu Zheng Zhifang Zhao Min Zeng Dingyi Zhou Xiaotong Su Dingshuai Liu Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology Remote Sensing the Buzhaoba open-pit mine influencing factors SBAS-InSAR Sentinel-1A two-dimensional deformation decomposition |
| title | Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology |
| title_full | Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology |
| title_fullStr | Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology |
| title_full_unstemmed | Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology |
| title_short | Monitoring and Analysis of Surface Deformation in the Buzhaoba Open-Pit Mine Based on SBAS-InSAR Technology |
| title_sort | monitoring and analysis of surface deformation in the buzhaoba open pit mine based on sbas insar technology |
| topic | the Buzhaoba open-pit mine influencing factors SBAS-InSAR Sentinel-1A two-dimensional deformation decomposition |
| url | https://www.mdpi.com/2072-4292/16/22/4177 |
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