Research on Characteristic of Rockburst and Rules of Microseismic Monitoring at Headrace Tunnels in Jinping II Hydropower Station

Author

Wen-dong Zhang ; Tian-hui Ma

Author_Institution

Inst. of Rock Instability & Seismicity Res., Dalian Univ. of Technol., Dalian, China

fYear

2013

fDate

29-30 June 2013

Firstpage

1039

Lastpage

1042

Abstract

In this paper, the characteristics and laws of rockburst at headrace tunnels in Jinping II hydropower station are summarized basing on a mass of rockburst incidents recorded during tunneling, including the law of rockburst distribution with mileage, the way of failure of rock surrounding tunnel, the relationship of rockburst and distance, the laws of position of rockburst on cross section, etc. According to relationship of the microseismic incidents and rockburst, the availability of application of microseismic monitoring technique to prediction of rockburst is argued, and the accuracy and reliability of it are proved.

Keywords

condition monitoring; earthquake engineering; failure (mechanical); fracture; hydroelectric power stations; rocks; Jinping II hydropower station; headrace tunnels; microseismic monitoring rules; rock failure; rockburst characteristics; rockburst distribution; rockburst incident mass; rockburst position law; rockburst-distance relationship; Hydroelectric power generation; Monitoring; Reliability; Rocks; Stress; Tunneling; Rockburst; microseismic monitoring; prediction of rockburst;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Manufacturing and Automation (ICDMA), 2013 Fourth International Conference on

Conference_Location

Qingdao

Type

conf

DOI

10.1109/ICDMA.2013.243

Filename

6598167