Abstract: The front face of the Dayuanbao rock rupture body has an obvious deformation due to the localized surcharge. Throughout the analysis of the surcharge process and the displacement monitoring, the deformation of the rock mass was summarized. The stability of the rock anchors is also reevaluated. Based on the long term monitoring and the reevaluation results, it is concluded that rock mass is stable under the design surcharge load.

Key words: Dayuanbao Rock Rupture, Rock Mass Deformation, Stability Analysis.