中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
DOI10.1061/(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

浏览0
下载0
收藏0
其他版本

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。