期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B7
页码：191-198
出版社：Copernicus Publications
摘要：Open pit mining sometimes intercepts highly permeable zones, with resulting high inflows of water into the excavation area. This remains a major problem in the mining industry and requires constant monitoring throughout the mining operation and beyond. In this paper, the environmental impact of an open-pit mining with intensive dewatering activities is assessed using Interferometric SAR. We use differential InSAR observations integrated with optical remote sensing images, groundwater pumping and site geologic and soil datasets to model and interpret hydrologically induced subsurface volume stain (volumetric shrinkage) distributions associated with the dewatering operation. Analysis of numerous DInSAR pairs spanning the period 1993 to 2001, reveals the abrupt appearance of these deformation signals to intervals of a few to several months. The ground deformation signals can be seen in all the interferograms used, thus ruling out the possibility of any atmospheric propagation changes which can be linked to a specific radar image. Along a section through the anomaly, we relate the modelled volume stain to dewatering associated changes in the groundwater levels at monitoring wells
