采空区影响下的高边坡稳定性综合分析

首钢水厂铁矿设计露天采场范围内存在一定数量地采时留下的空区,将影响矿山的生产安全,需进行详细的调查研究。根据空区的具体特点使用探地雷达查明了空区的位置和特征,考虑空区对边坡的影响,建立单空区的边坡安全系数计算公式及基于MATLAB编制改进的遗传算法计算程序,分析单空区对边坡的影响规律,并与相应的数值模拟计算结果进行对比,验证了改进遗传算法的可靠性,给出了采空区对采场高边坡稳定性影响,为后期开采施工提供了重要的参考。

Analysis on the Stability of High Slope Effected by Mined-out Area

There are some mined-out areas in the range of the Shuichang iron open-pit which may influence production safety,and it is necessary to make the detailed investigation and research on them.With the method of Ground Penetrating Radar,mined-out areas under the slope are investigated.Considering the influence of gobs on slope stability,a formula of safety factor of the slope with sole gob is established.The slope stability is carried out by the modified genetic algorithm program which is created with Matlab and the influence of sole gob on the slope is analyzed.Results of genetic algorithm are compared with those of numerical simulation,and they are consistent.