Microseismic energy evolution of high rock slop during excavation and after reinforcement

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Microseismic energy evolution of high rock slop during excavation and after reinforcement
	Zhuang DY(庄端阳); Liang ZZ(梁正召); Tang CA(唐春安); Ma K(马克)
	2016
会议名称	2nd International Conference on Rock Dynamics and Applications (RocDyn)
会议日期	MAY 18-19, 2016
会议地点	Suzhou, PEOPLES R CHINA
关键词	SEISMIC ENERGY
通讯作者	Zhuang, DY (reprint author), Dalian Univ Technol, Inst Rock Instabil & Seism Res, Dalian, Liaoning, Peoples R China.
中文摘要	Rock mass is known to exchange energy with the external environment when it is under load until it fails, a destabilization phenomenon driven by energy. In order to investigate the energy evolution of high rock slope and its relation with rock mass failure of the slope during slope excavation and after reinforcement, a parameter called microseismic energy density was proposed and the relationship between microseismic energy density and the stress and strain of rock mass was discussed. Taking right bank slope of the Dagangshan Hydropower station as an example, the microseismic energy release and energy transference of rock mass during slope excavation and after reinforcement were revealed. These lead to conclusions: Firstly, not only the distribution and intensity of microseismicity but also the potential dangerous area of the slope can be determined synthetically by microseismic energy density. Secondly, the distribution of high energy release zones is closely related to the locations of the deep unloading fracture zones XL316-1 and the fault f(231) moderately dipping out of the slope. Finally, the microseismic event rate and energy density decreased significantly after reinforcing, and the relative high energy release zones transferred to the edge of anti-shear tunnels and low-threat faults, dikes in the deeper area of the slope, so its mechanical behavior was obviously improved. Conclusions can provide references for developing energy criterion and the prediction method of high rock slope failure.
收录类别	CPCI-S ; EI
会议网址	10.1201/b21378-82
会议录	ROCK DYNAMICS: FROM RESEARCH TO ENGINEERING
语种	英语
ISBN号	978-1-315-47081-8; 978-1-138-02953-8
WOS记录号	WOS:000385239400077
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60205]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Zhuang DY,Liang ZZ,Tang CA,et al. Microseismic energy evolution of high rock slop during excavation and after reinforcement[C]. 见:2nd International Conference on Rock Dynamics and Applications (RocDyn). Suzhou, PEOPLES R CHINA. MAY 18-19, 2016.10.1201/b21378-82.