Characteristics of heterogeneous deformation and identification model of unstable damage state in pre-existing crack sandstone#br#

Characteristics of heterogeneous deformation and identification model of unstable damage state in pre-existing crack sandstone#br# Journal of Mining and Safety Engineering . 2023, (6): 1290 -1300 . DOI: 10.13545/j.cnki.jmse.2022.0530