Numerical Study of P-Waves Propagating across Deep Rock Masses Based on the Hoek-Brown Model
文献类型：期刊论文
| 作者 | Zheng, Yun2; Chen, Congxin2; Liu, Tingting1,2; Zhang, Wei2 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 20期号:2页码:9 |
| 关键词 | Deep underground engineering Rock mass Wave transmission Hoek-Brown model Numerical simulation |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001577 |
| 英文摘要 | Strong dynamic disturbances constitute an important problem threatening the safety of deep underground engineering projects. The mechanical mechanisms responsible for such disturbances in deep rock masses can be revealed by studying stress waves propagating across them. In this study, the propagation of P-waves across a deep rock mass was investigated both numerically and theoretically. The Hoek-Brown (HB) model, which is able to account for the stress state and nonlinear failure of the rock mass, was employed. In particular, the time-domain recursive method was extended to analyze the propagation of P-waves across the rock mass following the HB failure criterion. Good agreement is found between the theoretical results and simulations, which demonstrates that using the Universal Distinct Element Code (UDEC) with the HB model to study the transmission of P-waves across rock masses is eminently feasible. The effects of the disturbance factor, confining pressure, incident amplitude, and coupling of joints and rock mass quality on wave propagation were also studied using the UDEC in a systematic manner. The results show that for an incident P-wave of given amplitude, the greater the rock mass quality and smaller the disturbance factor, the greater the transmission coefficient. In addition, there is an upper limit to the effect the confining pressure has on the transmission coefficient. The amplitude of the incident wave also has an important influence on the transmission coefficient. Finally, if the quality of the rock mass is good and the disturbance slight, then the attenuation of the wave is primarily caused by the joints. |
| 资助项目 | National Natural Science Foundation of China[11602284] ; National Natural Science Foundation of China[51609183] ; National Natural Science Foundation of China[41807280] ; Open Research Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z015005] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000502794700018 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23235]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Tingting |
| 作者单位 | 1.Wuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomechan & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Yun,Chen, Congxin,Liu, Tingting,et al. Numerical Study of P-Waves Propagating across Deep Rock Masses Based on the Hoek-Brown Model[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(2):9. |
| APA | Zheng, Yun,Chen, Congxin,Liu, Tingting,&Zhang, Wei.(2020).Numerical Study of P-Waves Propagating across Deep Rock Masses Based on the Hoek-Brown Model.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(2),9. |
| MLA | Zheng, Yun,et al."Numerical Study of P-Waves Propagating across Deep Rock Masses Based on the Hoek-Brown Model".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.2(2020):9. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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