ZHANG Fei, ZHANG Dongbin, WANG Yuwei. Numerical simulation of dynamic impact response of rock-mass with different geometric features of structural plane[J]. CHINA MINING MAGAZINE, 2021, 30(7): 211-215,220. DOI: 10.12075/j.issn.1004-4051.2021.07.010
    Citation: ZHANG Fei, ZHANG Dongbin, WANG Yuwei. Numerical simulation of dynamic impact response of rock-mass with different geometric features of structural plane[J]. CHINA MINING MAGAZINE, 2021, 30(7): 211-215,220. DOI: 10.12075/j.issn.1004-4051.2021.07.010

    Numerical simulation of dynamic impact response of rock-mass with different geometric features of structural plane

    • In order to study the dynamic response of rock-mass when the geometric features of the structural plane are different, a numerical simulation study is conducted with the help of the ABAQUS analysis platform.Three sets of plane stress state models are established to simulate the impact load and to analyze the change of the stress value on a specific path when the geometric features of the structural surface change, and the changes of stress value and strain energy.The results show that on the selected analysis path, the Mises stress value is attenuated by the fitted functional relationship.As the thickness of the structural plane increases, the stress level at the down analysis point decreases, as the length increases, the transmission of stress waves can be observed in the stress cloud, as the curvature decreases, the rate of increase of the stress value increases, and the change trend of the strain energy and stress value remains synergy.It can be seen that on the analysis path, the stress value attenuates with a specific functional relationship, the thickness and length affect the increase or decrease of the stress value at the down analysis point, curvature affects the strain energy gathering speed.
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