Experimental Study on the Mechanical Characteristics of Cracked Rockmass under Lateral Constraints
Surrounding rocks of deep underground engineering are generally cracked, between which and support exists combined effect that can be reflected by the mechanical characteristics of cracked rock mass under lateral Constraints. In this paper, the strength and deformation characteristics of the cracked rock mass under lateral Constraints are investigated with methods of physical and numerical experiments. The results show that the rock mass behaves as equivalent continuum and tends to stable after deforming and re-fracturing, and has stress hardening behavior. These characteristics are obviously different from that of shearing slippage of rock samples at the residual stage of triaxial experiment.
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
L. J. Han and Y. N. He, "Experimental Study on the Mechanical Characteristics of Cracked Rockmass under Lateral Constraints ", Key Engineering Materials, Vols. 297-300, pp. 2642-2647, 2005