Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves

IMR OpenIR

	Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves
其他题名	Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves
	Zuo Yujun 1; Tang Chunan 3; Zhu Wancheng 2; Li Diyuan 4; Li Shucai 5
	2008
发表期刊	JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
ISSN	1005-9784
卷号	15 期号:5 页码:632-638
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.
其他摘要	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 RFPAED; 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.
关键词	MODEL tunnel reinforcing numerical simulation explosive stress wave failure process inhomogeneity
收录类别	CSCD
语种	英语
资助项目	[Natural Science Foundation of China] ; [Major State Basic Research Development Program of China] ; [Postdoctoral Science Foundation of China]
CSCD记录号	CSCD:3384084
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/151108
专题	中国科学院金属研究所
作者单位	1.Dalian Univ, Res Ctr Numer Test Materials Failure, Dalian 116622, Peoples R China 2.中国科学院金属研究所 3.大连大学 4.Cent S University, Sch Resources & Safety Engn, Changsha 410083, Peoples R China 5.山东大学
推荐引用方式 GB/T 7714	Zuo Yujun,Tang Chunan,Zhu Wancheng,et al. Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,2008,15(5):632-638.
APA	Zuo Yujun,Tang Chunan,Zhu Wancheng,Li Diyuan,&Li Shucai.(2008).Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves.JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,15(5),632-638.
MLA	Zuo Yujun,et al."Numerical analysis of tunnel reinforcing influences on failure process of surrounding rock under explosive stress waves".JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY 15.5(2008):632-638.