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Abstract
Based on the GIS data platform, and taking the spatial analysis as the main means, this paper explored the impact of reclamation in coal mining subsidence area on urban spatial expansion of Huaibei City. The analysis took the time evolution of urban space development as the basis, took the sectors, circle rings and sub-district offices as the basic spatial units. From the aspects of urban expansion rate, expansion direction, function and construction intensity, it analyzed the impact of reclamation on the urban spatial expansion. In addition, it analyzed the correlation between the reclamation utilization of the subsidence area and the changes in spatial expansion. Finally, it summarized the characteristics of the impact.