A STUDY ON THE ANISOTROPY OF JOINT ROUGHNESS COEFFICIENT IN ROCK MASS

In this paper a new conception on the anisotropy of joint roughness coefficient and its size effect are put forward. From the result of qualitative analysis of fault surface morphology of various genesis in connection with the statistical result of 2180 measured joint roughness coefficient values in different directions, We describe the anisotropy of roughness coefficients of joint I and fault II and III and their size effect.