Study on the crack propagation between blastholes under different detonating sequence using finite element method
文献类型：期刊论文
| 作者 | Xu, Mingnan; Li, Xinping; Wang, Yang; Liu, Tingting; Guo, Yunhua; Yin, Weisong; Pei, Chenhao; Zhang, Chao |
| 刊名 | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
 |
| 出版日期 | 2023-03-11 |
| ISSN号 | 1964-8189 |
| 关键词 | Detonating sequence blasthole spacing crack propagation blasting wave interaction stress distribution |
| 英文摘要 | Detonation methods are significant to the construction efficiency, smoothness of the contour surface and the stability of the rock mass. In this work, based on dynamic finite element method, numerical models for crack initiation and propagation under different detonating sequence types were firstly established. Then parametric analysis was carried out to study the effect of the blasthole spacing and detonation delay time on the crack propagation. Finally, the effect of blasting wave interaction and stress distribution under different detonation sequence types were studied. The results show that the initial and propagation of the directional fracture is dependent on the blasthole spacing and delayed detonation time. The main cracks generated from detonation have the tendency of linear propagation along the concentric line for small spacing. Based on the wave propagation theory, the optimal range of detonation delay time can be calculated. The branch cracks generated and main cracks deviate from the concentric line if the delay time is out of the optimal range. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000968982400001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35005]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Wuhan University of Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Xu, Mingnan,Li, Xinping,Wang, Yang,et al. Study on the crack propagation between blastholes under different detonating sequence using finite element method[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2023. |
| APA | Xu, Mingnan.,Li, Xinping.,Wang, Yang.,Liu, Tingting.,Guo, Yunhua.,...&Zhang, Chao.(2023).Study on the crack propagation between blastholes under different detonating sequence using finite element method.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING. |
| MLA | Xu, Mingnan,et al."Study on the crack propagation between blastholes under different detonating sequence using finite element method".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING (2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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