Knowledge Management System of Institue of Mechanics, CAS
| Characteristics of blasting vibration in presence of weak interlayers | |
Ding H(丁桦) ; Shang XJ; Bai JZ; Ding, H (reprint author), Chinese Acad Sci, Inst Mech, 15 N W Rd 4th Round, Beijing 100080, Peoples R China.
| |
| Source Publication | Computational Mechanics, Proceedings |
| 2004 | |
| Conference Name | 6th World Congress on Computational Mechanics held in conjunction with the 2nd Asian-Pacific Congress on Computational Mechanics |
| Conference Date | SEP 05-10, 2004 |
| Conference Place | Beijing, PEOPLES R CHINA |
| Abstract | A numerical model is proposed in this paper to consider the effect of thin weak layers within semi-infinite homogeneous elastic media when explosives are at different locations. Using this model, we have studied the different features of blasting vibrations generated by explosives placed at different locations and for different dimensions (different areas) of weak layers through LS_DYNA. The numerical results reveal that the longer the layer length is, the larger vibration amplitude is and the less the characteristic frequencies of vibration signals are. The amplitude of vibration signals has a maximum value when blasting source is in the weak layer, and will decrease when the blasting source go away from the weak layer. There is a significant shading effect when the dimension of weak layer is large and the relative stiffness of the weak layer compared to surrounding medium is low. These findings are helpful to identify underground weak interlayer. In-situ experiments also confirm above findings qualitatively. |
| WOS ID | WOS:000231353600037 |
| ISBN | 7-302-09343-1 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58910 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Ding, H (reprint author), Chinese Acad Sci, Inst Mech, 15 N W Rd 4th Round, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Ding H,Shang XJ,Bai JZ,et al. Characteristics of blasting vibration in presence of weak interlayers[C]Computational Mechanics, Proceedings,2004. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| CPCI-B007.pdf（520KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment