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EXPERIMENT ON DYNAMIC DAMAGE PROPERTY OF ROCK AND NEW
DAMAGE MODEL FOR ROCK FRAGMENTATION BY BLASTING |
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Abstract The new parameters for describing damage and it s evolution in rock are explored to const ruct damage
model of rock f ragmentation by blasting. The shock2induced damage experiment s are carried out and the ult rasonic
signals in the damaged rocks are measured. The result s show that the shock2induced damage of rock is related to
the attenuation coefficient of sonic wave. Considering the relationship of the attenuation of wave and damage ener2
gy dissipation , a new rock damage model is developed for rock blasting. Comparing the experiment data of light2
gas gun with the simulating result s by the new models , it is verified that the new model can better reveal the dy2
namic course of rock f ragmentation by blasting.
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Received: 04 November 1999
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| [1] |
LI Xinping1, 2, 3, LI Wenhao1, 2, ZHOU Zhengrong2, 4, ZHU Yingwei1, 2, QU Dengxing2*, XIAO Wenxuan2, . Mechanical size effect mechanisms in coral reef limestone based on digital rock core modeling [J]. , 2026, 45(4): 980-995. |
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