The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting
文献类型：期刊论文
| 作者 | Yue, H. Z.; Yu, C.; Li, H. B.; Zhou, C. B.; Chen, S. H.; Shao, Z. S. |
| 刊名 | SHOCK AND VIBRATION
 |
| 出版日期 | 2022-01-19 |
| 卷号 | 2022期号:-页码:- |
| ISSN号 | 1070-9622 |
| 英文摘要 | Rock damage and vibration attenuation are the basis of blasting design, which will affect rock breaking results and the safety of structures (buildings). In this paper, the effect of blast-hole arrangement, delay time, and decoupling charge on the rock damage and the vibration attenuation in multihole blasting were numerically investigated. Through dynamic analysis software ANSYS/LS-DYNA, the JOHNSON_HOLMQUIST_CONCRETE (JHC) rock model and fluid-solid coupling method were used to establish single-hole and multihole rock blasting models. Based on the analysis of single-hole rock damage and vibration, firstly, the effect of the above three factors on the rock damage characteristics of multihole blasting was analyzed. Then, the extracted peak particle velocity (PPV) data of multihole blasting were fitted to the United States Bureau of Mines (USBM) equation to obtain the blasting vibration attenuation parameters (the site constant K and alpha). It is found that the blast-hole arrangement, delay time, and decoupling charge have a much smaller effect on alpha than K. At the same time, a delay-time-dependent model of PPV correction coefficient was proposed, and its rationality was verified by field data. The results obtained in this paper have reference significance for optimizing the blasting design and improving the blasting effect. |
| 学科主题 | Acoustics ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000770836700001 |
| 出版者 | HINDAWI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35490]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China 4.College of Civil Engineering, Huaqiao University, Xiamen 361021, China 5.School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China |
| 推荐引用方式 GB/T 7714 | Yue, H. Z.,Yu, C.,Li, H. B.,et al. The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting[J]. SHOCK AND VIBRATION,2022,2022(-):-. |
| APA | Yue, H. Z.,Yu, C.,Li, H. B.,Zhou, C. B.,Chen, S. H.,&Shao, Z. S..(2022).The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting.SHOCK AND VIBRATION,2022(-),-. |
| MLA | Yue, H. Z.,et al."The Effect of Blast-Hole Arrangement, Delay Time, and Decoupling Charge on Rock Damage and Vibration Attenuation in Multihole Blasting".SHOCK AND VIBRATION 2022.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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