Numerical Simulation of Creep Characteristic for Composite Rock Mass with Weak Interlayer

2nd International Conference on Civil Engineering and Materials Science

Li, Jian-Guang^1 ; Zhang, Zuo-Liang^1 ; Zhang, Yu-Biao^1 ; Shi, Xiu-Wen^1 ; Wei, Jian^1

College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao

266061, China^1

关键词: Creep characteristics;    Finite element software;    Layered composites;    Machining Process;    Stability problem;    Underground engineering;    Uni-axial compression;    Weak intercalation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/216/1/012043/pdf
DOI  :  10.1088/1757-899X/216/1/012043

来源: IOP

【 摘 要 】

The composite rock mass with weak interlayer is widely exist in engineering, and it's essential to research the creep behavior which could cause stability problems of rock engineering and production accidents. However, due to it is difficult to take samples, the losses and damages in delivery and machining process, we always cannot get enough natural layered composite rock mass samples, so the indirect test method has been widely used. In this paper, we used ANSYS software (a General Finite Element software produced by American ANSYS, Inc) to carry out the numerical simulation based on the uniaxial compression creep experiments of artificial composite rock mass with weak interlayer, after experimental data fitted. The results show that the laws obtained by numerical simulations and experiments are consistent. Thus confirmed that carry out numerical simulation for the creep characteristics of rock mass with ANSYS software is feasible, and this method can also be extended to other underground engineering of simulate the weak intercalations.