On the excavation-induced stress drop in damaged coal considering a coupled yield and failure criter

• 作 者: Dongjie Xue Jie Zhou Yintong L
• 机 构: SchoolofMechanicsandCivilEngineering,StateKeyLaboratoryofCoalMineDisasterDynamicsandControl,KeyLabor
• 出 处: 国际煤炭科学技术学报:英文版
• 发表日期: 2020年1期
• 关键词: Stress drop Abutment pressure Mohr's circle Yield line Failure line
• 基金项目: The authors gratefully acknowledge the financial support received from the National Natural Science Foundation of China(Grant Nos.51504257 and 51674266),the State Key Research Development Program of C

Investigating the stress drop of abutment pressure is the key to a deep quantitative analysis of the discontinuous stress redistribution under mining.In the present study,uniaxial and triaxial compression tests are carried out separately to determine the