摘要
爆炸当量是描述爆炸能量的重要参数,准确快速地估算爆炸当量是开展应急救援工作的关键。随着观测技术的不断革新与地震学方法的快速发展,利用地震学方法进行估算成为爆炸当量估算的一种重要手段。本文通过收集内蒙古黑岱沟露天煤矿爆炸资料和前人研究成果,利用爆炸地震效率与震级-当量经验关系两种手段研究矿山爆炸当量的估算方法。结果表明,当矿山等爆炸事件发生后,可利用爆炸产生的地震波形记录计算地震波能量,进而通过爆炸地震效率估算爆炸当量,本文得到的矿山爆炸事件其地震转化效率约为0.02%~0.07%。此外,本文建立了适用于矿山爆炸事件的地方性震级M_(L)与炸药当量之间的经验关系,通过该关系也可以对矿山爆炸事件的炸药当量进行估算。
The explosion equivalent is a critical parameter for quantifying the energy released by an explosion,and its accurate and rapid estimation is essential for effective emergency response and rescue operations.With advances in observation technology and the rapid development of seismological methods,seismological approaches have become a key means for estimating explosion equivalents.This study investigates methods for estimating the explosion equivalent in mining areas by analyzing explosion data from the Heidaigou open-pit coal mine in Inner Mongolia and incorporating findings from previous research.Two approaches are explored:the explosion seismic efficiency method and the magnitude-equivalent empirical relationship.The results indicate that seismic wave energy generated by explosions can be derived from recorded seismic waveforms.Using the calculated seismic wave energy and explosion seismic efficiency,the explosion equivalent can be accurately estimated.The seismic conversion efficiency of mining explosions determined in this study ranges from approximately 0.-02%to 0.-07%.Additionally,an empirical relationship between the local magnitude(M_(L))and explosion equivalent,specific to mining explosion events,is established.This relationship provides an alternative method for estimating the explosion equivalent.
作者
张珂
马亮
王玥
王鑫
王勇
Zhang Ke;Ma Liang;Wang Yue;Wang Xin;Wang Yong(Earthquake Agency of Inner Mongolia Autonomous Region,Hohhot 010010,China)
出处
《中国地震》
北大核心
2024年第4期819-830,共12页
Earthquake Research in China
基金
内蒙古自治区地震局局长基金课题(2024MS02)
内蒙古自治区自然基金项目(2023LHMS04006)共同资助。
关键词
矿山爆炸
当量估算
爆炸地震效率
地方性震级M_(L)
Mining explosion
Equivalent estimation
Explosion seismic efficiency
Local magnitude M_(L)
