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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
其他任职：国际岩石力学与岩石工程学会（ISRM）中国国家小组副主席
性别：男
毕业院校：东北大学
学位：博士
所在单位：土木工程系
办公地点：综合实验四号楼330
联系方式：tca@mail.neu.edu.cn
Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves
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论文类型：期刊论文
发表时间：2008-10-01
发表刊物：JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
收录刊物：SCIE、EI、Scopus
卷号：15
期号：5
页面范围：632-638
ISSN号：1005-9784
关键字：tunnel reinforcing; numerical simulation; explosive stress wave; failure process; inhomogeneity
摘要：Based on mesoscopic damage mechanics, numerical code RFPA(2D) (dynamic edition) was developed to analyze the influence of tunnel reinforcing on failure process of surrounding rock under explosive stress waves. The results show that the propagation phenomenon of stress wave in the surrounding rock of tunnel and the failure process of surrounding rock under explosive stress waves are reproduced realistically by using numerical code RFPA(2D); from the failure process of surrounding rock, the place at which surrounding rock fractures is transferred because of tunnel reinforcing, and the rockfall and collapse caused by failure of surrounding rock are restrained by tunnel reinforcing; furthermore, the absolute values of peak values of major principal stress, and the minimal principal stress and shear stress at center point of tunnel roof are reduced because of tunnel reinforcing, and the displacement at center point of tunnel roof is reduced as well, consequently the stability of tunnel increases.