Multi-physics numerical analyses for predicting the alterations in permeability and reactive transport behavior within single rock fractures depending on temperature, stress, and fluid pH conditions

Fracture mechanism and constitutive model considering post-peak plastic deformation of marble under thermal-mechanical action

“…. It is a new topic to deal with rock engineering problems under high temperature environment (Ogata et al, 2022;Federico et al, 2019; Bijan & Lohrasb, 2019) [5][6][7] . Influenced by factors such as geological tectonics, engineering depth, fire accidents, magma and underground hot water activities (Huang et al, 2021; Wang et al, 2022; Hao et al, 2022) [8][9][10] , high temperature phenomenon of rocks is finding in many fields such as mining, energy, geology and civil engineering (Etzelmüller et al, 2022; Hu et al, 2022) [11][12] .…”

“…In the past decades, many valuable results have been achieved about temperature on rock failure and mechanics. A large number of scholars have carried out comprehensive and systematic work on physical and mechanical parameters, deformation and fracture characteristics (macro-fracture, micro-fracture and threshold temperature) of rock mass under high temperature in combination with rock mechanics tests, acoustic emission, scanning electron microscope (SEM), photometric microscope and computed tomography (CT) technology (Jansen et al, 1993;Hajpál, 2002;Tian et al, 2012;Plevová et al, 2010) [22][23][24] , and carried out corresponding theoretical work, such as fracture mechanism (Kou et al, 2022) [17] , failure criterion (Zhou et al, 2022) [3] and constitutive model (Ogata et al, 2022; Wang et al, 2022) [5,9] . For example, through Brazilian tests of gabbro and marble at 100~600℃, Zhang et al (1994) [25] found that the fracture toughness and tensile strength of rocks decreased with the increase of temperature.…”