QQ客服 官方微博 反馈留言

	Microseismic monitoring of columnar jointed basalt fracture activity: a trial at the Baihetan Hydropower Station, China
	Hu, Lian-Xing1; Chen, Bing-Rui2; Li, Qing-Peng2; Feng, Xia-Ting2; Xiao, Ya-Xun2; Feng, Guang-Liang2
刊名	JOURNAL OF SEISMOLOGY
	2014
卷号	18期号:4页码:773-793
关键词	Columnar jointed basalt Relaxation fracture Microseismic monitoring Fracture type Baihetan Hydropower Station
ISSN号	1383-4649
DOI	10.1007/s10950-014-9445-0
英文摘要	Severe stress release has occurred to the surrounding rocks of the typically columnar jointed basalt after excavation at the Baihetan Hydropower Station, Jinsha River, China, where cracking, collapse, and other types of failure may take place occasionally due to relaxation fracture. In order to understand the relaxation fracture characteristics of the columnar jointed basalt in the entire excavation process at the diversion tunnel of the Baihetan Hydropower Station, real-time microseismic monitoring tests were performed. First, the applicability of a geophone and accelerometer was analyzed in the columnar jointed basalt tunnel, and the results show that the accelerometer was more applicable to the cracking monitoring of the columnar jointed basalt. Next, the waveform characteristics of the microseismic signals were analyzed, and the microseismic signals were identified as follows: rock fracture signal, drilling signal, electrical signal, heavy vehicle passing signal, and blast signal. Then, the attenuation characteristics of the microseismic signals in the columnar jointed basalt tunnel were studied, as well as the types and characteristics of the columnar jointed basalt fracture. Finally, location analysis was conducted on the strong rock fracture events, in which four or more sensors were triggered, to obtain the temporal and spatial evolution characteristics and laws of the columnar jointed basalt relaxation fracture after excavation. The test results are not only of important reference value to the excavation and support of diversion tunnel at the Baihetan Hydropower Station, but also of great referential significance and value to the conduction of similar tests.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000342213100005
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3633]
专题	岩土力学所知识全产出_期刊论文 岩土力学所知识全产出 国家重点实验室知识产出_期刊论文
作者单位	1.China Three Gorges Corp 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
推荐引用方式 GB/T 7714	Hu, Lian-Xing,Chen, Bing-Rui,Li, Qing-Peng,et al. Microseismic monitoring of columnar jointed basalt fracture activity: a trial at the Baihetan Hydropower Station, China[J]. JOURNAL OF SEISMOLOGY,2014,18(4):773-793.
APA	Hu, Lian-Xing,Chen, Bing-Rui,Li, Qing-Peng,Feng, Xia-Ting,Xiao, Ya-Xun,&Feng, Guang-Liang.(2014).Microseismic monitoring of columnar jointed basalt fracture activity: a trial at the Baihetan Hydropower Station, China.JOURNAL OF SEISMOLOGY,18(4),773-793.
MLA	Hu, Lian-Xing,et al."Microseismic monitoring of columnar jointed basalt fracture activity: a trial at the Baihetan Hydropower Station, China".JOURNAL OF SEISMOLOGY 18.4(2014):773-793.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。