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根据安太堡露天矿露井联采条件下端帮裂隙的实际测量,根据裂隙的方向对裂隙进行分组,分别计算出端帮观测面上每组裂隙的平均产状、迹长等几何参数及密度函数。统计结果表明,观测面上的裂隙方向服从费舍尔分布,裂隙迹长服从对数正态分布。根据每组裂隙的数量和裂隙迹长的均值、标准差、一维密度的值,应用Monte-Carlo法原理模拟端帮三维裂隙网络。根据裂隙模型,建立了块体理论模型,分析和预测该矿的南端帮块体分布情况。
According to the actual measurements of the end-rock fracture under the conditions of open pit and open pit mining in Antaibao, the fractures are grouped according to the direction of the fractures, and the geometrical parameters and the density function. The statistical results show that the fissures on the observed surface follow the Fischer distribution and the fissure tracks obey the logarithmic normal distribution. According to the number of each group of fissures and the mean, standard deviation and one-dimensional density of the fissure track length, Monte-Carlo method was used to simulate the end-to-end three-dimensional fissure network. According to the fracture model, a theoretical model of the block is established to analyze and predict the distribution of the block in the southern tip of the mine.