非煤露天矿山露天边坡分区与稳定性评价研究OA

In the general survey of potential hazard-inducing factors in non-coal open-pit mines,open-pit slopes are a critical factor affecting mine safety production.Taking the Gaoloushan building stone-grade limestone quarry as a case study,this paper accurately zones the open-pit slopes of the mining area based on factors such as the combination relationship between the bedding plane of rock mass and slope orientation during the production period and the influence range of geological structures.Qualitative analysis via stereographic projection and quantitative calculation of slope stability coefficients are adopted to accurately evaluate the current safety level of slopes in each zone.The results show that no overall failure or bedding sliding failure will occur in slopes of all zones;the possibility of wedge sliding is low in slopes of Zone A and Zone C;slopes of Zone B and Zone B-1 are prone to wedge sliding failure and are in a sub-stable state.Corresponding slope protection measures are proposed according to the characteristics of slopes in each zone.