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ARTICLE
Study on a concise and unified unstable creep model for rocks
1
College of Architectural Engineering, Tongling University, Tongling, China
2
School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, China
Submission date: 2023-10-25
Final revision date: 2024-02-06
Acceptance date: 2024-02-08
Online publication date: 2024-07-09
Publication date: 2024-07-31
Corresponding author
Liangliang Zhang
School of Civil Engineering and Architectur, Anhui University of Science and Technology, Taifeng, 232001, Huainan, China
School of Civil Engineering and Architectur, Anhui University of Science and Technology, Taifeng, 232001, Huainan, China
Journal of Theoretical and Applied Mechanics 2024;62(3):477-490
KEYWORDS
TOPICS
ABSTRACT
The unsteady creep curve of rocks is antisymmetric to the dynamic surface subsidence curve
of coal mining. Accordingly, a four-parameter unsteady creep model of rock was established
using an analogous reasoning method from the perspective of phenomenology, and a simple
method for determining the model parameters was proposed. The test curves of four different
types of rocks were in good agreement with the theoretical curves of the model. In particular,
the accelerated creep test curves with nonlinear characteristics were consistent with the
theoretical curves of the model, verifying the rationality and accuracy of the model.
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