Formation mechanism of core discing during drilling under deep in-situ stress environment: Numerical simulation and laboratory testing - Li, Fei; Gao, Ming-zhong; Ye, Si-qi; Xie, Jing; Deng, Hu-chao; Yang, Ben-gao; Liu, Jun-jun; Yang, Zun-dong; Tang, Rui-feng (Journal of Central South University, 2023)
Keywords: Axial stress; Coring; Drilling; Energy conversion; Energy distribution; Engineering; Fractal geometry; Fracture surfaces; Laboratory tests; Metallic Materials; Sandstone; crack distribution; deep rock mass; 断面形貌; 深部岩体; 裂纹分布; discing formation mechanism; 能量演化; 原位应力; 宏观破裂特征; fracture surface morphology; in-situ stress; macroscopic failure characteristics; 饼化形成机制; energy evolution