Conventional SBAS-InSAR methods are limited by their inability to capture the full dimensionality of deformation, making it difficult to effectively represent three-dimensional (3D) surface displacements in mining areas. To address this issue, this study proposes a 3D deformation inversion method that integrates ascending and descending SAR data by combining SBAS-InSAR with Offset-Tracking techniques. Using the Liuhuanggou coal mine as a case study, experiments were conducted to derive the 3D surface deformation field. The inversion results were systematically analyzed in terms of subsidence magnitude, affected area, and spatial distribution. Furthermore, leveling data were employed to compare the accuracy of the proposed 3D deformation inversion method with conventional ascending and descending SBAS-InSAR 2D deformation results. This comparison aimed to evaluate the advantages of the 3D decomposition approach over existing 2D methods. The findings indicate that the 3D inversion method aligns more closely with actual leveling data and achieves higher inversion accuracy than the 2D approach. The proposed method enhances the monitoring precision of SBAS-InSAR to a certain extent and expands its measurement dimensionality, thereby providing a novel and effective technical reference for surface deformation monitoring in mining areas.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |