摘要
将冲击地压地音前兆信息识别方法建立在冲击地压机理分析的基础上,提高了冲击地压预测预报的理论依据和可靠性。通过对大量现场实测地音数据分析,获得了顶板断裂型、采动高应力型和断层活化型冲击地压的典型地音前兆模式。突变型地音模式适合于用来预测顶板断裂型冲击地压,灵敏性较高;持续稳定型则一般不会出现非稳定的突变状态,适合采动高应力引发的冲击地压预测;波动型地音模式包含类似主震-余震型和前震-主震型两种,适合于断层活化型冲击地压预测。
The method of precursor information identification of rock noise was developed on the basis of mechanism analysis of rock burst, and it improved the theoretical basis and reliability of forecast and prediction of rock burst. According to a large number of rock noise data from field measurement, three typical rock noise precursor patterns were confirmed, respectively were roof fracture type, high stressing mining type and fault activation type. Mutant type rock noise pat- tern was suitable for forecasting the rock burst of roof fracture type and it had high sensibility; the sustained and stable type was generally not a non-steady state of mutation and suitable for forecasting the rock burst caused by high stressing mining; the fluctuating type pattern contained similar mainshock-aftershock type and foreshock-mainshock, which was suitable for fault activa- tion type.
出处
《中国煤炭》
北大核心
2015年第3期49-53,共5页
China Coal
基金
国家自然科学基金项目(51304116)
国家科技支撑计划(十二五)项目(2012BAK09B01-06)
关键词
冲击地压
发生机理
地音监测
前兆信息
模式识别
rock burst, occurrence mechanism, rock noise monitoring, precursor informa-tion, pattern recognition
作者简介
夏永学（1980－），男，湖南临武人，博士，副研究员，2005年毕业于湖南科技大学资源学院，现在天地科技股份有限公司开采设计事业部从事矿山压力与顶板管理、冲击地压方面的研究工作。
