摘要
提出的岩体结构面产状平面正态概率分布模型,是以极点平面投影坐标为分布变量的二维联合正态分布。与球面正态分布相比较,模型更为简单,特征参数也更易于理解,可以描述有明显走向的分布形态,可以用极点中心角距标准差椭圆或椭圆锥形象表示,也易于实现模拟观测。在圆形对称的情况下,平面正态分布模型与球面正态分布模型的分布曲线非常接近,在现实工作中可以代替球面正态分布。
For normal plane distribution model for orientation of discontinuities in rock mass presented in this paper,the normal plane distribution is a twodimensional combined normal distribution in which plane projection coordinates of a pole are taken as random variablesAs compared with using Fisher distribution,this model is further simple,has comprehensible characteristic parameters and can be used for description of distribution shape of discontinuities with obvious strikeThis model can be visually described by an ellipse or elliptic cone of polecenter angular distance standard deviationBy use of this model,the simulation of orientation data can be realized very easilyIn the case of circlesymmetric distribution,the curve of normal plane distribution is almost identical to the curve of Fisher distribution,so the normal plane distribution can replace Fisher distribution in fact
出处
《矿冶》
CAS
2003年第2期1-6,共6页
Mining And Metallurgy