Effect of structural planes on rockburst distribution: Case study of a deep tunnel in Southwest China

doi:10.1016/j.enggeo.2021.106250

	Effect of structural planes on rockburst distribution: Case study of a deep tunnel in Southwest China
	Wang, Jianchao 1,2; Chen, Guoqing 2; Xiao, Yaxun 1; Li, Shaojun 1; Chen, Yi 2; Qiao, Zhibin 3
刊名	ENGINEERING GEOLOGY
	2021-10-01
卷号	292 页码:14
关键词	Deep tunnel Rockburst Microseismic monitoring Geological structure Joints
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2021.106250
英文摘要	Rockburst is a type of dynamic failure and often causes considerable damage during the construction of underground engineering. Geological structures have been regarded as a crucial factor influencing rockburst distribution, and more related research is urgently needed. This paper presents microseismic monitoring information, characteristics of 151 mckbursts, and various structural planes collected in detail from a deep tunnel located in Southwest China. The results show that microseismic activity tends to increase when joints with large scale begin to appear and vanish. Rockburst risk always increases between the spandrels and around the intersection of two joint sets. The joint dip angle changes the mckburst risk. In the presence of one or two joint sets with a 70-80 degrees dip angle, mckbursts are more prone to occur. The conclusions can be interpreted with the discrete element method. When more joints are encountered, the total number of rockbursts may decrease, but the mckbursts are more likely to be strong or induce collapse, causing more damage. This research can improve the understanding of rockburst mechanisms and guide the choice of construction and support methods.
资助项目	National Natural Science Foundation of China[U1765206] ; National Natural Science Foundation of China[41972284] ; Science & Technology Research and Development Program of China Railway[P2018G045]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000692696200010
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27881]
专题	中科院武汉岩土力学所
通讯作者	Chen, Guoqing; Xiao, Yaxun
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, 1 Dongsanlu, Chengdu 610059, Sichuan, Peoples R China 3.China Railway 12 Bur Grp Co Ltd, Taiyuan 030024, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jianchao,Chen, Guoqing,Xiao, Yaxun,et al. Effect of structural planes on rockburst distribution: Case study of a deep tunnel in Southwest China[J]. ENGINEERING GEOLOGY,2021,292:14.
APA	Wang, Jianchao,Chen, Guoqing,Xiao, Yaxun,Li, Shaojun,Chen, Yi,&Qiao, Zhibin.(2021).Effect of structural planes on rockburst distribution: Case study of a deep tunnel in Southwest China.ENGINEERING GEOLOGY,292,14.
MLA	Wang, Jianchao,et al."Effect of structural planes on rockburst distribution: Case study of a deep tunnel in Southwest China".ENGINEERING GEOLOGY 292(2021):14.