Abstract
A testing machine was developed to test the creep disturbance effect and explore the creep disturbance law of geopolymer cemented coal gangue-fly ash backfill (GCGFB). A creep disturbance constitutive model of GCGFB was established by introducing a disturbance element that connects an improved fractional Burger’s model and nonlinear viscous dashpot with a strain trigger. Experimental results indicated that dynamic disturbances significantly influence the creep process of GCGFB. Increasing the disturbance impact energy increases the deformation and shortens the time to reach the failure strain. The disturbance deformation generated by GCGFB is negatively correlated with the static load stress at a low disturbance energy and positively correlated at a high disturbance energy. The calculated results of the disturbance constitutive model showed good agreement with the experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
