A case study of micro-seismic monitoring: Goaf water-inrush dynamic hazards

被引：0

作者：

Dou, Lin-Ming ^{[1
]}

He, Jiang ^{[1
]}

Gong, Si-Yuan ^{[1
]}

Song, Yun-Fei ^{[1
]}

Liu, Hui ^{[1
]}

机构：

[1] State Key Laboratory of Coal Resources and Mine Safety, School of Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China

来源：

Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and Technology | 2012年 / 41卷 / 01期

关键词：

Hazards;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Mining safety can be improved by more effective monitoring for water inrush in the goaf. To this end, the relative effect of monitoring micro-seismic events has been analyzed. A theory of energy emission rate and energy spatial density is proposed to compensate for a deficiency of micro-seismic activities in both time and space. A monitoring method using partitioning and time sharing is proposed, which indicates reasonable monitoring and prevention measures are needed to cope with water inrush hazards and these should be based upon different periods of time and different zones in the goaf. A case study showed that warning of a pending water inrush event exists in the micro-seismic data. The total energy, the number of events, and the energy emission rate all increase before the water inrush event. The energy emission rate of micro-seismic events can be used to analyze the micro-seismic activity in time and the energy spatial density in space.

引用

页码：20 / 25