长江科学院院报2019，Vol.36Issue(12)：102-106,5.DOI:10.11988/ckyyb.20180572
微震法岩爆监测及其在荒沟电站地下厂房区的应用分析
Rockburst Monitoring by Microseismic Method and Its Application in Underground Powerhouse of Huanggou Hydropower Station
摘要
Abstract
In recent years, rockburst induced by excavation of deep underground caverns has become increasingly prominent. Microseismic monitoring technology characterized by micro-fracture location of rock mass has been broadly utilized in rockburst monitoring and early warning of underground engineering. In this paper, a microseis-mic monitoring system for rockburst monitoring and early warning for the slight rockburst of local surrounding rock during excavation was established and adopted to analyze the microseismic activity in the first two months of the mo-nitoring period. The underground powerhouse area of Huanggou Pumped Storage Power Station was taken as a case study. Results suggest that the frequency of microseismic events is positively correlated with the intensity of blasting excavation. The upstream side arch shoulder and the intersection between lower drainage corridor and workshop in-stallation room are the potential risk areas of rockburst. The research finding offers technical support for the safe construction and stability evaluation of underground caverns.关键词
岩爆/微震法/地下厂房/荒沟电站/围岩稳定性Key words
rockburst/microseismic monitoring/underground powerhouse/Huanggou Hydropower Station/sur-rounding rock mass stability分类
建筑与水利引用本文复制引用
周朝,尹健民,周春华,艾凯..微震法岩爆监测及其在荒沟电站地下厂房区的应用分析[J].长江科学院院报,2019,36(12):102-106,5.基金项目
国家重点研发计划项目(2016YFC0401801) （2016YFC0401801）
