综放工作面多指标耦合防冲研究
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摘要
某矿2120综放工作面具有中等冲击危险性,所采煤层具有弱冲击危险特征,所在的21采区采掘过程中大能量震动事件频繁发生,通过对该矿SOS微震和ARES-5/E地音监测系统数据分析,提出了采用多参量耦合分析预测预报大能量震动的发生,并通过Z-MAP值、A(t)值、AP值、活动度S值与G11通道声发射数据耦合,得到了多种指标与声发射之间的耦合规律,准确性达到75%以上。
A mine 2120 fully mechanized caving face has a moderate rock burst hazard,the seam has a weak rock burst risk characteristics,and large energy shock events occur frequently in 21 mining area in the mining process.Based on the data analysis from SOS microseismic and ARES-5/E ground sound monitoring system,the paper puts forward a multi-parameter coupled analysis to forecast high energy shock,and through the coupling of Z-MAP value,A(t) value,AP value,activity value S and G11 channel acoustic emission data,the paper gets the coupling rule between a variety of indicators and AE,and accuracy reaches more than 75%.
A mine 2120 fully mechanized caving face has a moderate rock burst hazard,the seam has a weak rock burst risk characteristics,and large energy shock events occur frequently in 21 mining area in the mining process.Based on the data analysis from SOS microseismic and ARES-5/E ground sound monitoring system,the paper puts forward a multi-parameter coupled analysis to forecast high energy shock,and through the coupling of Z-MAP value,A(t) value,AP value,activity value S and G11 channel acoustic emission data,the paper gets the coupling rule between a variety of indicators and AE,and accuracy reaches more than 75%.
引文
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[4]窦林名,何学秋.冲击矿压防治理论与技术[M].徐州:中国矿业大学出版社,2001.
[5]夏永学,蓝航,魏向志.基于微震和地音监测的冲击危险性综合评价技术研究[J].煤炭学报,2011(9):358-364.
[6]吕亚军,窦林名,李宁,等.矿井微震Z值同应力和声发射的耦合关系[J].金属矿山,2012(11):125-128.
[7]夏永学,康立军,齐庆新,等.基于微震监测的5个指标及其在冲击地压预测中的应用[J].煤炭学报,2010(12):2011-2015.
[2]孙文福,周元夫,焦明若,等.关于抚顺矿震活动趋势分析[J].高原地震,2002(2):45-50.
[3]窦林名,何学秋.煤矿冲击矿压的分级预测研究[J].中国矿业大学学报,2007(11):717-722.
[4]窦林名,何学秋.冲击矿压防治理论与技术[M].徐州:中国矿业大学出版社,2001.
[5]夏永学,蓝航,魏向志.基于微震和地音监测的冲击危险性综合评价技术研究[J].煤炭学报,2011(9):358-364.
[6]吕亚军,窦林名,李宁,等.矿井微震Z值同应力和声发射的耦合关系[J].金属矿山,2012(11):125-128.
[7]夏永学,康立军,齐庆新,等.基于微震监测的5个指标及其在冲击地压预测中的应用[J].煤炭学报,2010(12):2011-2015.
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