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1 Journal of Theoretical and Applied Mechanics

1 2023

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Research on creep-fatigue model of anchored jointed rock mass

Song Yang, Fan Bo, Li Yong-Qi, Wang He-Ping

Journal of Theoretical and Applied Mechanics

2023

Vol. 61 nr 1

163--173

To explore the mechanical response of anchored rock mass with an interaction of fatigue and creep, this paper selects the fatigue amplitude and fatigue frequency as influencing factors to carry out a fatigue-creep experiment of the anchored rock mass. Based on fractional order theory and binary perturbation theory, a new fractional order creep model is constructed. The results show that compared with the Burgers model, the newly proposed creep model can better describe the whole process of creep deformation of the anchored jointed rock mass under fatigue loading.