TEST AND NUMERICAL MODELING OF THE STABILITY OF ROCK BEDDED SLOPE

This paper presents results of a physical model of geo-model material under multi-stage excavation of the slope. The failure behavior of cutting slopes in layered rock mass is then analyzed. Based on finite element analysis, some key factors for stability of rock bedded slope are determined using the laminated model. The results of the numerical simulation show that the possibility of bedding slide of bedding stratified rock slope becomes very low when the intersecting angle between the strike direction of slope and that of strata exceeds 30o. Therefore, this kind of slope may not be defined as rock bedded slope. The relationship between the stability of rock bedded slope and the dip angle of strata or the shear strength of joint is also discussed in this paper.