Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns

doi:10.1155/2017/1812080

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns
	Li, XinPing 2; Huang, JunHong 3; Luo, Yi 2; Dong, Qian 3; Li, YouHua 1; Wan, Yong 1; Liu, TingTing 2,4
刊名	SHOCK AND VIBRATION
	2017
页码	-
ISSN号	1070-9622
DOI	10.1155/2017/1812080
英文摘要	Aiming at surrounding rock damage induced by dynamic disturbance from blasting excavation of rock-anchored beam in rock mass at moderate or far distance in underground cavern, numerical model of different linear charging density and crustal stress in underground cavern is established by adopting dynamic finite element software based on borehole layout, charging, and rock parameter of the actual situation of a certain hydropower station. Through comparison in vibration velocity, contour surface of rock mass excavation, and the crushing extent of excavated rock mass between calculation result and field monitoring, optimum linear charging density of blast hole is determined. Studies are also conducted on rockmass vibration in moderate or far distance to blasting source, the damage of surrounding rock in near- field to blasting source, and crushing degree of excavated rock mass under various in situ stress conditions. Results indicate that, within certain range of in situ stress, the blasting vibration is independent of in situ stress, while when in situ stress is increasing above certain value, the blasting vibration velocity will be increasing and the damage of surrounding rock and the crushing degree of excavated rock mass will be decreasing.
WOS研究方向	Acoustics ; Engineering ; Mechanics
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000400837800001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3990]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Three Gorges Construct Engn Co Ltd, China Gezhouba Grp ; 2.Wuhan Univ Technol, Hubei Key Lab Rd Bridge & Struct Engn ; 3.Wuhan Univ Technol, Sch Civil Engn & Architecture ; 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Li, XinPing,Huang, JunHong,Luo, Yi,et al. Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns[J]. SHOCK AND VIBRATION,2017:-.
APA	Li, XinPing.,Huang, JunHong.,Luo, Yi.,Dong, Qian.,Li, YouHua.,...&Liu, TingTing.(2017).Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns.SHOCK AND VIBRATION,-.
MLA	Li, XinPing,et al."Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns".SHOCK AND VIBRATION (2017):-.