摘要
定量化描述结构面产状的空间分布特征一直是研究的重点和难点,有助于判断不稳定块体的组合形式,为分析岩体稳定性提供准确、有效信息。基于陈剑平等提出的岩体节理产状极点分布分形维计算方法,从Schmidt极点图的等面积网格剖分原理入手,对其方法进行修改,直接对Dips软件形成的Schmidt产状极点图进行网格剖分,将自定义输入变量直接改为环数n,大大简化了网格剖分的编制程序。并以大岗山水电站坝区右岸拱肩槽内侧边坡测网资料为基础,计算岩体节理产状极点分布分形维D,其结论和数据与陈剑平等的方法所得基本一致,验证了修正方法的正确性和可行性,为陈剑平等方法的普遍应用起到了一定的推广作用。
Quantitative description of the structural plane spatial distribution has been the study focus and difficulty,which could help to determine the form of the combination of unstable blocks accurately,and provides accurate and valid information for analysis of rock mass stability. Following the principle of meshing Schmidt pole diagram by equal area,an improved algorithm is suggested based on Chen Jianping′s method for calculating the fractal dimension of joint orientation pole distribution. It can mesh directly the Schmidt orientation polar plot generated by Dips software,take the ring number n for self-defined input variable and greatly simplify the programming. Based on the survey grid data of the spandrel groove internal slop of right dam foundation in Dagangshan Hydropower Station,fractal dimension D of orientation pole distribution for rock mass joints is obtained. The conclusions summarized are almost the same as concluded in the paper of Chen Jianping,which verifies the correctness and feasibility of the improved algorithm and promotes the universal application of the method of Chen Jianping′s.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2013年第S2期3303-3308,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
成都理工大学地质灾害防治与地质环境保护国家重点实验室开放基金项目(SKLGP2012K032)
关键词
岩石力学
空间分布特征
环数n
产状极点分布
分形维
rock mechanics
spatial distribution
ring number n
orientation pole distribution
fractal dimension
