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Volume Title: ICASGE2015

DOI: ICASGE-GEO

YUE CAI; XIAODONG ZHAO and IBRAHIM DJAMALUDDIN

Although, there has been a significant development in the evaluation of methods to predict ground movement due to underground extraction in the last century, ground movement problem due to mining extraction sequence is not solved because of its time-dependence. The accurate prediction is getting more and more importance for long-term underground mining planning. In this research, a new computational system is developed to simulate ground movement by combining a stochastic theory, Knothe time-delay model and Geographic Information System (GIS) technology. All the calculations are implemented by a computational program called by MSDAS-GIS, where the components of GIS are used to fulfill the spatial-temporal analysis model. A tight coupling strategy based on Component Object Model (COM) of GIS technology is used to overcome the problems of complex three-dimensional extraction model and spatial data integration. Moreover, the implementation of computational of the interfaces of the developed tool is described. The GIS based developed tool is validated by two study cases. The developed computational tool and models are achieved within the GIS system so the effective and efficient calculation methodology can be obtained, so the simulation problems of 4D ground movement due to underground mining extraction sequence can be solved by implementation of the developed tool in GIS.

computational model; Geographic Information System (GIS); ground deformation; surface subsidence