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| FRACTAL ANALYSIS OF THREE-DIMENSIONAL TOPOGRAPHY CHARACTERISTICS OF ROCK JOINT SURFACE |
| CAO Ping，JIA Hongqiang，LIU Taoying，PU Chengzhi，FAN Xiang |
| (School of Resource and Safety Engineering，Central South University，Changsha，Hunan 410083，China) |
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Abstract The surface of joint specimen has been scanned by using 3D surface profiler Talysurf CLI 2000 and the surface shape is numerical expressed in order to implement the 3D visualization of joint surface. Then，after the analysis of 3D surface topography characteristics with fractal geometric theory，the function，connected with fractal dimension and JRC of joint profile，is put forward. By taking a single joint surface as the research object，this paper probes into the relation between the fractal dimension of joint profile，JRC and the fractal dimension of joint surface，which has important significance in introducing fractal geometric theory to research the joint surface state.
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Received: 06 December 2010
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2011, Vol. 30 
