Numerical Simulation of fracturing process around boreholes under static-dynamic loads by coupling two FEM models and damage mechanics

The fracture propagation process around the borehole under the static-dynamic loading is simulated by considering the inhomogeneity of rock material and statistic damage mechanics, and coupling COMSOL with Matlab. For some factors such as inhomogeneity of strength, layout of holes and loading order,...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 861; no. 3; pp. 32006 - 32018
Main Authors Hwang, Ryong Hyon, Li, Yong Il, Han, Un Chol, Pak, Jang Hyok, Kim, K C
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2021
Subjects
Boreholes
Coupling
Crack propagation
Damage
damage mechanics
Dynamic loads
Finite element method
Fracture mechanics
Inhomogeneity
Mathematical models
Mechanical loading
numerical simulation
rock blasting
rock failure
Simulation
tunnel drivage
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Summary:The fracture propagation process around the borehole under the static-dynamic loading is simulated by considering the inhomogeneity of rock material and statistic damage mechanics, and coupling COMSOL with Matlab. For some factors such as inhomogeneity of strength, layout of holes and loading order, simulations are conducted. The result provides some helps for a computer aided analysis of the blasting design in tunnel drivage.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/861/3/032006