| Space-time effect of blasting stress wave and blasting gas on rock fracture based on a cavity charge structure | |
Ding, Chenxi1,2,4; Yang, Renshu1,2; Chen, Cheng1,2; Zhu XG(朱心广)3 ; Feng C(冯春)3; Xie, Quanmin4
| |
| 通讯作者 | Yang, Renshu(yrs@ustb.edu.cn) |
| 发表期刊 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 2022-12-01 | |
| 卷号 | 160页码:9 |
| ISSN | 1365-1609 |
| 摘要 | There are still varying opinions on the relative spatio-temporal contributions of blasting stress wave and blasting gas in the theoretical study of rock blasting due to the transient nature of the blasting process and the complexity of the blasting effect. Based on this, the study proposes a cavity charge structure entailing quantitative and differentiated research on the effects of blasting stress wave and blasting gas over time and space. The time and space action characteristics of blasting gas are regulated by changing the charge structure of the borehole and placing a cavity between the charge and borehole wall, and the "double-peak" evolution law of blasting strain is obtained. The first peak is generated by blasting stress wave, and the second peak is generated by blasting gas, with a delay between the first and second peaks. Further analysis shows that the cavity has different effects on blasting stress wave and blasting gas. Finally, the space-time effect of blasting stress wave and blasting gas can be fully utilized to achieve controllable rock fragmentation by adjusting the charge position and the cavity volume in the cavity charge structure. |
| 关键词 | Blasting stress wave Blasting gas Cavity charge structure Strain evolution Crack propagation |
| DOI | 10.1016/j.ijrmms.2022.105238 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000884859300003 |
| 关键词[WOS] | NUMERICAL-SIMULATION ; PROPAGATION |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| WOS类目 | Engineering, Geological ; Mining & Mineral Processing |
| 资助项目 | National Natural Science Foundation of China[52204085] ; National Natural Science Foundation of China[51934001] ; Interdisciplinary Research Project for Young Teachers of USTB (Fundamental Research Funds for the Central Universities)[FRF-IDRY-21-006] ; Fundamental Research Funds for the Central Universities[FRF-TP-20-044A1] ; Foundation of Hubei Key Laboratory of Blasting Engineering[BL2021-05] ; China Postdoctoral Science Foundation[2021M700386] |
| 项目资助者 | National Natural Science Foundation of China ; Interdisciplinary Research Project for Young Teachers of USTB (Fundamental Research Funds for the Central Universities) ; Fundamental Research Funds for the Central Universities ; Foundation of Hubei Key Laboratory of Blasting Engineering ; China Postdoctoral Science Foundation |
| 论文分区 | 一类 |
| 力学所作者排名 | 3+ |
| RpAuthor | Yang, Renshu |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/90823 |
| 专题 | 流固耦合系统力学重点实验室 |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China; 2.Univ Sci & Technol Beijing, Key Lab Minist Educ High Efficient Min & Safety Me, Beijing 100083, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 4.Jianghan Univ, Hubei Key Lab Blasting Engn, Wuhan 430056, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Chenxi,Yang, Renshu,Chen, Cheng,et al. Space-time effect of blasting stress wave and blasting gas on rock fracture based on a cavity charge structure[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2022,160:9. |
| APA | Ding, Chenxi,Yang, Renshu,Chen, Cheng,朱心广,冯春,&Xie, Quanmin.(2022).Space-time effect of blasting stress wave and blasting gas on rock fracture based on a cavity charge structure.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,160,9. |
| MLA | Ding, Chenxi,et al."Space-time effect of blasting stress wave and blasting gas on rock fracture based on a cavity charge structure".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 160(2022):9. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Jp2022FA049_2022_Spa（11293KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论