SIMPLE ANALYSIS OF ANISOTROPY OF ROCK QUALITY DESIGNATION

Anisotropy is one of the most important engineering behaviours of rock mass and rock quality designation.In the paper,through analysing the sensitivity of spacing,dip angle,included angle,and the number of joint sets versus anisotropy of rock quality designation,some anisotropic patterns of rock quality designation are discussed using net simulation of joints. After this,several suggestions about how to using rock quality designation for evaluating stability of rock engineering are proposed in the light of it's application to engineering rock mass.