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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：采矿与安全工程学报

所属单位：数学科学学院

期号：3

页面范围：349-353

ISSN号：1673-3363

摘要：In mining activities, the accumulative energy shall be released and transmitted from rock mass in the form of seismic wave under conditions of the high stress level in the mine, rock burst, water damage or other dynamic disaster, which is often accompanied by microseismic events. Based on the engineering conditions and using the advanced mining dynamic disaster monitoring equipment, microseismic monitoring system was established for real-time monitoring the continuous microruptures in the curtain region. In order to verify and predict the effect on the stability of the curtain region in Zhangmatun Iron Mine under a great hydraulic gradient and mining activities, a test by making artificial seismic source was performed to check the effects of location error, location accuracy and interference immunity of the system. The results show that the source location accuracy is very high, which is especially true for those arrays with sensors distributed. The test value is in good accordance to the monitoring result, with all the error values being acceptable. Part of the location events which are great in error can be recalculated and repositioned to make them acceptable. Some dangerous regions can be circled out and the possible water-inrush positions can be located by the distribution rule of three-dimensional microseismic location events.

备注：新增回溯数据