Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions

摘要

Recently, attention has focused on the dynamic properties of rocks with the goal of understanding their dynamic mechanical features under different loading histories and conditions (e.g., Stavrogin and Tarasov 2001; Bagde and Petros 2009). Researchers have carried out studies on different types of rocks to examine the loading effects and loading strain rates on their strength and deformation characteristics (e.g., Zhao 2000; Cho et al. 2003; Mahm-utoglu 2006; Wang et al. 2009; Liang et al. 2010). More extensive work on cyclic loading has explored whether rocks are subject to weakening from fatigue (e.g., Burdine 1963; Prost 1988; Singh 1989; Tien et al. 1990; Li et al. 2001; Fuenkajorn and Phueakphum 2010).