基于Sigma-Optimal方法的微震监测台网设计及优化
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摘要
微震监测台网设计是系统能否成功应用的关键,直接决定了微震监测系统的应用效果。本文基于Sigma-Optimal方法对新疆大明矿业天湖铁矿的微震监测台网进行了设计及优化,使重点监测区域的定位误差较小且对较小震级事件具有较高的灵敏度。优化后微震监测台网的定位误差在9m左右,灵敏度可以达到-2.6矩震级,与现场应用情况一致,应用效果良好。
Microseismic monitoring network design is the key to successful application of the system,which directly determines the application effect of the microseismic monitoring system.Based on Sigma-Optimal method,the microseismic monitoring networkwas designed and optimized in Tianhu iron mine of Xinjiang Daming Mining Group Co.Ltd.The location error of the key monitoring area was small and had a higher sensitivity to smaller magnitude events.The positioning error was around 9 mand the sensitivity can reach the-2.6 moment magnitude after optimization,which was consistent with the field application,and the application effect was well.
Microseismic monitoring network design is the key to successful application of the system,which directly determines the application effect of the microseismic monitoring system.Based on Sigma-Optimal method,the microseismic monitoring networkwas designed and optimized in Tianhu iron mine of Xinjiang Daming Mining Group Co.Ltd.The location error of the key monitoring area was small and had a higher sensitivity to smaller magnitude events.The positioning error was around 9 mand the sensitivity can reach the-2.6 moment magnitude after optimization,which was consistent with the field application,and the application effect was well.
引文
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[2]陈炳瑞,冯夏庭,曾雄辉,等.深埋隧洞TBM掘金微震实时监测与特征分析[J].岩石力学与工程学报,2011,30(2):276-283.
[3]袁节平,胡静云,周爱民,等.柿竹园多通道微震监测系统的建立及应用研究[J].矿业研究与开发,2010,30(6):12-14.
[4]高永涛,吴庆良,吴顺川,等.基于D值理论的微震监测台网优化布设[J].北京科技大学学报,2013(12):1538-1545.
[5]巩思园,窦林名,曹安业,等.煤矿微震监测台网优化布设研究[J].地球物理学报,2010,53(2):457-465.
[6]刘晓明,赵嘉轩,王李管,等.基于综合评价法的矿山微震监测台网布设评价[J].中国安全生产科学技术,2016,12(5):66-72.
[7]周勇勇,李夕兵,刘志祥,等.高精度三维地下微震台网模糊优选方法[J].中国安全生产科学技术,2016,12(7):82-86.
[8]蔡永顺,张达,王平,等.某铁矿采场大直径深孔爆破对含水层稳定性的影响[J].有色金属工程,2015,5(增刊1):149-152.
[9]张苏闯,郭玉豹,蔡永顺,等.玲南金矿微震监测系统的建立及应用研究[J].矿冶,2015,24(4):5-9.
[10]胡静云,林峰,彭府华,等.香炉山钨矿残采区地压灾害微震监测技术应用分析[J].中国地质灾害与防治学报,2012,21(4):109-115.