Journal of Rock Mechanics and Geotechnical Engineering Journal of Rock Mechanics and Geotechnical Engineering, 2021, 13 (4), pp.855-863. ⟨10.1016/j.jrmge.2021.01.002⟩ Journal of Rock Mechanics and Geotechnical Engineering, Vol 13, Iss 4, Pp 855-863 (2021)