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The Scientific World Journal
Volume 2014, Article ID 171873, 7 pages
Research Article

Generalized Models for Rock Joint Surface Shapes

1College of Civil Engineering, Shaoxing University, Shaoxing 312000, China
2College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
3Zhejiang Industry Polytechnic College, Shaoxing 312000, China

Received 7 April 2014; Revised 12 June 2014; Accepted 30 June 2014; Published 24 July 2014

Academic Editor: Guangxiong Chen

Copyright © 2014 Shigui Du et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Generalized models of joint surface shapes are the foundation for mechanism studies on the mechanical effects of rock joint surface shapes. Based on extensive field investigations of rock joint surface shapes, generalized models for three level shapes named macroscopic outline, surface undulating shape, and microcosmic roughness were established through statistical analyses of 20,078 rock joint surface profiles. The relative amplitude of profile curves was used as a borderline for the division of different level shapes. The study results show that the macroscopic outline has three basic features such as planar, arc-shaped, and stepped; the surface undulating shape has three basic features such as planar, undulating, and stepped; and the microcosmic roughness has two basic features such as smooth and rough.