A failure criterion for shale considering the anisotropy and hydration based on the shear slide failure model

• Published in: International journal of mining science and technology Vol. 33; no. 4; pp. 447 - 462
• Main Authors: Zhang, Qiangui, Yao, Bowei, Fan, Xiangyu, Li, Yong, Fantuzzi, Nicholas, Ma, Tianshou, Chen, Yufei, Zeng, Feitao, Li, Xing, Wang, Lizhi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2023; Elsevier
• Subjects: Anisotropy; Failure criterion; Hydration; Mechanical strength; Shale; Shear slide failure; Shear slide failure; Failure criterion; Hydration; Mechanical strength; Anisotropy; Shale

A failure criterion fully considering the anisotropy and hydration of shale is essential for shale formation stability evaluation. Thus, a novel failure criterion for hydration shale is developed by using Jaeger’s shear failure criterion to describe the anisotropy and using the shear strength reduct...