摘要
本文分析了岩体裂隙面倾角的概率分布模型Fisher模型的特点、使用条件和使用方法。由于Fisher模型用球面坐标表示,且与工程常用的直角坐标系存在旋转变换关系,为方便工程应用,本文推导了该模型球面坐标与直角坐标的旋转变换关系公式,并介绍了应用该模型和坐标旋转变换关系公式模拟岩体空间三维裂隙面倾角的方法。作为应用实例,结合空间裂隙面的其他参数的模拟方法,应用本文介绍的方法对某工程坝基岩体空间裂隙网络进行了成功的模拟。
This paper introduces the features,application conditions and usage of the Fisher Model,a probability distribution model of the rock fracture surface inclination.Since the Fisher Model is shown in spherical coordinates and is related to the rectangular coordinate system in terms of rotating transformation,to facilitate the engineering application,this paper deduces the rotating transformation equation of the Fisher Model between spherical coordinate system and rectangular coordinate one.Based on this relation equation, the method of simulating the three-dimensional rock fracture inclinations is presented.As an example,the three-dimensional rock fracture network of a section of dam foundation rock is successfully simulated.
出处
《中国水利水电科学研究院学报》
2010年第4期309-313,共5页
Journal of China Institute of Water Resources and Hydropower Research
基金
中国水利水电科学研究院开放研究基金项目(IWHRO2009005)
