摘要
The new parameters for describing damage and its evolution in rock are explored to construct damage model of rock fragmentation by blasting. The shock-induced damage experiments are carried out and the ultrasonic signals in the damaged rocks are measured. The results show that the shock-induced damage of rock is related to the attenuation coefficient of sonic wave. Considering the relationship of the attenuation of wave and damage energy dissipation, a new rock damage model is developed for rock blasting. Comparing the experiment data of light-gas gun with the simulating results by the new models, it is verified that the new model can better reveal the dynamic course of rock fragmentation by blasting.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 320-323 |
| 页数 | 4 |
| 期刊 | Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering |
| 卷 | 20 |
| 期 | 3 |
| 出版状态 | 已出版 - 5月 2001 |