Forecasting Major Geological Hazards about Construction Projects of Mengshan Lead-Zinc Mining

On the basis of the analysis of the Mengshan lead-zinc minings geological hazards in Wuzhou City, Guangxi province, the paper forecasts the major types of geological hazards which can be triggered are collapse, landslide as well as the goaf ground subsidence, and studies the causes and the occurrence possibility of them by the improved principle of stereographic projection and calculation method of goaf ground subsidence, which can offer a valuable reference to similar mine construction project in the future prevention of geological hazards.