Study on the characteristics of blast-induced damage zone by using the wave velocity field inversion technique
文献类型：期刊论文
| 作者 | Fu, Shuaiyang2,3; Li, Haibo2,3 ; Liu, Liwang1; Li, Qian2,3; Li, Xiaofeng3
|
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 176页码:17 |
| 关键词 | Cracked zone Wave velocity field inversion Multistencils fast marching methods Simultaneous iterative reconstructive technique Finite-discrete element simulation |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2024.106808 |
| 英文摘要 | The rock excavation by drilling and blasting method would lead to damage around the blasting hole, which could significantly affect the long-term stability of surrounding rock mass in tunnel, slope, or bedrock. To qualify the characteristics of blast-induced damage zone, we proposed a wave velocity field inversion imaging method, which combines multistencils fast marching methods and simultaneous iterative reconstructive technique to quickly inverse and quantify the blast-induced cracked zone surrounding the borehole. The finite-discrete element method, which has advantages in simulating the fracture and fragmentation of rocks, was used to simulate the blasting process and acoustic wave testing. The ground vibrations induced by the blasting were monitored simultaneously and the acoustic waveforms are used to invert the wave velocity field before and after blasts. The inverted wave velocity field is compared with the blast-induced cracked zone, and the relationship between the radius of the crushed zone and the cracked zone under different charges was studied. It is found that the ratio of the crushed zone radius and the cracked zone radius decreases with the increasing charge. Moreover, the relationship between the peak particle velocity at 30 m away from the borehole (PPV30) PPV 30 ) and the distribution of the cracked zone was determined. |
| 资助项目 | Science Foundation of China[U22A20239] ; Fundamental Research Funds for the Central Universities[309231C8805] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001330801200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42734]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Xiaofeng |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Sch Safety Sci & Engn, Nanjing 210094, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Shuaiyang,Li, Haibo,Liu, Liwang,et al. Study on the characteristics of blast-induced damage zone by using the wave velocity field inversion technique[J]. COMPUTERS AND GEOTECHNICS,2024,176:17. |
| APA | Fu, Shuaiyang,Li, Haibo,Liu, Liwang,Li, Qian,&Li, Xiaofeng.(2024).Study on the characteristics of blast-induced damage zone by using the wave velocity field inversion technique.COMPUTERS AND GEOTECHNICS,176,17. |
| MLA | Fu, Shuaiyang,et al."Study on the characteristics of blast-induced damage zone by using the wave velocity field inversion technique".COMPUTERS AND GEOTECHNICS 176(2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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