中国矿山工程

In order to ensure the slope stability in the fissure area of Heishantou open-pit coal mine, by combining the geological conditions of the open-pit slope and the development characteristics of the fissure area, FLAC^3D+SLIDE numerical simulation is used to evaluate and analyze the slope stability in the area. From the analysis results it can be seen that there is a sliding trend in the fissure area in the northeast corner, and the slope is unstable. Therefore, corresponding measures are needed for slope control. Based on the current slope control technology, slope foundation clearing is selected and the control effect is evaluated and analyzed. The results show that after the slope clearing measures are adopted in the fissure area, there is no slope sliding in the area and no such tendency in the follow-up mining of the pit, which ensures the slope stability in the fissure area of the pit.