Influences of Blasting Vibration on Slope Stability in the Jinfeng Gold Mine
The Jinfeng Gold Mine in Zhenfeng County,Guizhou Province is the fourth largest gold mine in Asia,which has been mined for many years,and recently,it has entered the residual mining stage and started to mine boundary pillars.However,the boundary pillars are close to the surface,and when mining them,it is easy to cause slope collapse due to blasting vibration.This article analyzes the force of the slope,establishes an equation of slope stability,and calculates the coefficient F of slope stability by substituting the calculation coefficient of blasting vibra-tion into the equation.If F is greater than 1,the slope is safe,and if F is less than 1,the slope is unstable.At the same time,it calculates the most unstable angle θ of the slope,which provides a calculation example for future slope calculations.
Jinfeng Gold MineImpact of blasting vibrationSlope stabilityCalculation coefficient
NETL
NSTL
万方数据
