Numerical simulation on mechanism of fractured rock burst in deep underground tunnels

doi:10.11883/1001-1455-(2015)03-0343-07

	Numerical simulation on mechanism of fractured rock burst in deep underground tunnels
	Zhao, Hong-Liang; Zhou, You-He
刊名	爆炸与冲击
	2015-05-25
卷号	35 期号:3 页码:343-349
关键词	爆炸力学岩爆机理离散单元法地下洞室
ISSN号	1001-1455
DOI	10.11883/1001-1455-(2015)03-0343-07
其他题名	深埋地下洞室断裂型岩爆机理的数值模拟
文献子类	Article
英文摘要	Aiming at rockburst geological disaster induced by discontinuity such as faults or joints in deep lay rock mass, numerical model is presented according to distributional characteristics and geometrical aspects of potential seismic faults in underground tunnel. Subsequently, excavation response of deep lay surrounding rock with rigid flat faults is simulated via distinct element codes, and varied features of stress state in surrounding rock are examined while excavation process approaches and then passes through fault zones. Finally, Mechanism of action is discussed on the base of stress state change induced by available faults. Energy releases sharply via rockburst under high stress, and it is revealed that faulted structure occur movement within a certain region of excavation section. Rockburst impacts on surrounding rock intensely, and the mechanism is similar to fault stick slip in earthquake process. ©, 2015, Explosion and Shock Waves. All right reserved.
学科主题	Structural Design, General ; Concrete ; Geology ; Mine And Quarry Operations ; Mathematics ; Mechanics
出版地	MIANYANG
资助项目	国家自然科学基金项目 ; 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金
项目编号	国家自然科学基金项目 ; 高等学校博士学科点专项科研基金项目 ; 中央高校基本科研业务费专项基金项目 ; 兰州大学博士后基金项目
语种	中文
CSCD记录号	CSCD:5472281
资助机构	NSFC ; MOE ; LZU
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182431]
专题	土木工程与力学学院_期刊论文
推荐引用方式 GB/T 7714	Zhao, Hong-Liang,Zhou, You-He. Numerical simulation on mechanism of fractured rock burst in deep underground tunnels[J]. 爆炸与冲击,2015,35(3):343-349.
APA	Zhao, Hong-Liang,&Zhou, You-He.(2015).Numerical simulation on mechanism of fractured rock burst in deep underground tunnels.爆炸与冲击,35(3),343-349.
MLA	Zhao, Hong-Liang,et al."Numerical simulation on mechanism of fractured rock burst in deep underground tunnels".爆炸与冲击 35.3(2015):343-349.