Mechanical Characteristics Analysis of Surrounding Rock on Anchor Bar Reinforcement

3rd International Conference on Energy Equipment Science and Engineering

Gu, Shuan-Cheng^1 ; Zhou, Pan^1 ; Huang, Rong-Bin^1

School of Architecture and Civil Engineering, Xi'An University of Science and Technology, Xi'an

710054, China^1

关键词: 3-D numerical simulation;    Bolting supports;    Equivalent condition;    Mechanical characteristics;    Mechanical parameters;    Stability analysis;    Strength parameters;    Underground cavern;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012029/pdf
DOI  :  10.1088/1755-1315/128/1/012029

来源: IOP

【 摘 要 】

Through the homogenization method, the composite of rock and anchor bar is considered as the equivalent material of continuous, homogeneous, isotropic and strength parameter enhancement, which is defined as reinforcement body. On the basis of elasticity, the composite and the reinforcement are analyzed, Based on strengthening theory of surrounding rock and displacement equivalent conditions, the expression of reinforcement body strength parameters and mechanical parameters is deduced. The example calculation shows that the theoretical results are close to the results of the Jia-mei Gao[9], however, closer to the results of FLAC3Dnumerical simulation, it is proved that the model and surrounding rock reinforcement body theory are reasonable. the model is easy to analyze and calculate, provides a new way for determining reasonable bolt support parameters, can also provides reference for the stability analysis of underground cavern bolting support.