Experimental Study on Stiffness Degradation of Rock Under Uniaxial Cyclic Sinusoidal Compression Loading

Excerpt

Improvement in the field of mining, tunneling and foundation engineering demands more effective studies on rock subjected to cyclic loading. In the past three decades, much work has been reported in the literature on the weakening of rock under cyclic loading. It may be concluded from the literature that intact rock and jointed rock masses are highly influenced by cyclic loading. Many researchers such as Burdine (1963); Attewell and Farmer (1973); Haimson (1974, 1978); Peng et al. (1974); Brighenti (1979); Singh (1989); Zhenyu and Haihong (1990); Ishizuka et al. (1990); Lajtai et al. (1991); Li et al. (1992); Ray et al. (1999); Petros et al. (2003); Bagde and Petros (2005a, b), Xiao et al. (2010); Fuenkajorn and Phueakphum (2010); Momeni et al. (2015) and Zhang et al. (2015) carried out cyclic loading experiments on different types of rock and studied the effect of stress amplitude, loading frequency and mean stress on the behavior of rock. …