Abstract We propose a reconstruction method of three-dimensional (3D) multi-level deformation in time series. Firstly, OT DInSAR are applied to retrieve the discontinuous multi-level deformation in LOS direction. Then, the deformation prior fusion model and probability integration method are integrated to build the reconstruction model of three-dimensional multi-level deformation in mining areas. Finally, the 52303 workface in Daliuta coal area is selected as the research object to verify the feasibility and precision of the proposed method. After processing six high-resolution TerraSAR-X image pairs, we acquire the results of time series three-dimensional multi-level deformation for this workface. The monitoring results by our proposed method are consistent with the leveling results. The root-mean-square errors (RMSE) in the vertical, east-west and north-south directions are less than 0.188 0 m, 0.224 3 m and 0.207 4 m, respectively. Therefore, the proposed method can not only accurately measure the three-dimensional mining deformation, but also accurately retrieve the three-dimensional multi-level deformation characteristics with more details from the edge to the center of the subsidence basin.
ZHANG Lele,LIU Bo,JIA Shili et al. Reconstruction of Time Series Three-Dimensional Multi-Level Deformation in Mining Area Based on Single OT DInSAR Pair[J]. jgg, 2021, 41(9): 886-894.
ZHANG Lele,LIU Bo,JIA Shili et al. Reconstruction of Time Series Three-Dimensional Multi-Level Deformation in Mining Area Based on Single OT DInSAR Pair[J]. jgg, 2021, 41(9): 886-894.