TY - JOUR
TI - Mechanical properties of marble with different joint inclinations under engineering disturbance
AU - Lou Chen-Di
AU - Xie Jing
AU - Zha Er-Sheng
AU - Ru Zhang
AU - Ren Li
AU - Zhang Ze-Tian
AU - Liu Xiao-Ling
AU - Xiao Kun
JN - Thermal Science
PY - 2023
VL - 27
IS - 5
SP - 3829
EP - 3836
PT - Article
AB - This study examined the fracture morphology properties of rock cores and  studied the mechanical characteristics of jointed rock at depths of 2400 m,  with inclinations of 15°, 30°, and 60°. The results showed that jointed  rock is significantly controlled by joint weak areas, particularly when the  joint inclination exceeds 30°. Additionally, rock damage increases with  joint inclination during engineering disturbance, however, its pre-peak  plastic characteristics weaken with joint inclination. The damage stress  level is higher with a larger joint inclination, decreasing the bearing  capacity. Further, a strength criterion for jointed rock considering  engineering disturbance was established. It is found that strength exhibits  a V-shaped distribution with joint inclination, and 30° to 75° jointed rock  is significantly lower than before the disturbance.