Influence of the Seismic Wave Velocity of the Damage Zone on Near-Field Ground Motions

doi:10.3389/feart.2021.803522

	Influence of the Seismic Wave Velocity of the Damage Zone on Near-Field Ground Motions
	Wang, Qiankuan 4,5; Qiu, Shili 3,5; Cheng, Yao 4; Li, Ping 2; Kou, Yongyuan 1; Zhang, Shirui 3,5
刊名	FRONTIERS IN EARTH SCIENCE
	2021-12-13
卷号	9 页码:13
关键词	underground engineering seismic hazard near-field ground motion excavation damage zone excavation fracture zone finite fracturing seismic source model
DOI	10.3389/feart.2021.803522
英文摘要	In burst-prone deep underground engineering, seismic waves generated from a near-field ground motion event may play a critical role in causing localized rockburst damage. Accurate estimation of near-field ground motions around excavations is important for seismic hazard risk assessment and dynamic rock support design in underground engineering. During the excavation of an underground cavern, stress redistribution in the surrounding rock leads to the formation of damage zones, including the excavation damage zone (EDZ) and excavation fracture zone (EFZ). The poor properties of the rock in the damage zones cause the wave velocities of the rock mass to decrease and the dynamic wave interaction to change, thereby affecting the ground motions around the excavation. This paper studies the near-field ground motion behavior and reveals the control effect of the seismic wave velocity in the damage zones on the near-field ground motions by the aid of the finite fracturing source model (FFSSM). The research results provide a new knowledge of the influence of excavation disturbance on the ground motion distribution around the excavation, and provide new ideas for the seismic hazard risk assessment and prevention in underground engineering.
WOS研究方向	Geology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000742043100001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/30764]
专题	中科院武汉岩土力学所
通讯作者	Qiu, Shili
作者单位	1.Jinchuan Grp Co Ltd, Jinchang, Peoples R China 2.South Cent Univ Nationalities, Wuhan, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.China Univ Geosci, Fac Engn, Wuhan, Peoples R China 5.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qiankuan,Qiu, Shili,Cheng, Yao,et al. Influence of the Seismic Wave Velocity of the Damage Zone on Near-Field Ground Motions[J]. FRONTIERS IN EARTH SCIENCE,2021,9:13.
APA	Wang, Qiankuan,Qiu, Shili,Cheng, Yao,Li, Ping,Kou, Yongyuan,&Zhang, Shirui.(2021).Influence of the Seismic Wave Velocity of the Damage Zone on Near-Field Ground Motions.FRONTIERS IN EARTH SCIENCE,9,13.
MLA	Wang, Qiankuan,et al."Influence of the Seismic Wave Velocity of the Damage Zone on Near-Field Ground Motions".FRONTIERS IN EARTH SCIENCE 9(2021):13.