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| FRACTAL DIMENSION IMPROVED ALGORITHM
OF ORIENTATION POLE DISTRIBUTION FOR JOINTS |
| SONG Lijuan1，XU Mo1，LU Shuqiang2，ZHANG Xiaochao1，YU Chengyun1，HUANG Hui1 |
(1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection，Chengdu University of Technology，
Chengdu，Sichuan 610059，China；2. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of
Ministry of Education，China Three Gorges University，Yichang，Hubei 443002，China) |
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Abstract 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.
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Received: 13 August 2012
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2013, Vol. 32 
