Abstract:Under the increasingly tense situation of land resources, in some mineral resource-based cities, utilization of disused mining pit has been promoted to improve the urban landscape or promote commercial significance. This paper focuses on the rock slope stability problem with reference to a deep mining pit renovation project in Changsha. The development pattern of rock deformation in both natural state and disturbed by construction activities is summarized through finite element analysis. For the rock slope suffering circular point heavy loading, the collaborative interaction between the rock and its overlying structures constitutes the research focus of this study. The results show that the disused deep mining pit is basically in a stable state without engineering activity, the construction disturbance and structural operation loads leave no significance impact to the rock slope stability. However, when the rock wall suffers paroxysmal failure, the local collapse or large deformation seriously endanger the safety of the mining pit and its overlying structures. As for the accidental failure of the foundation pile, it shows less effect on the stability of the rock wall and the building due to the well-behaved annular point foundation distribution.