矿山爆炸当量估算方法分析——以内蒙古黑岱沟露天煤矿为例
Analysis of Mining Explosion Equivalent Estimation Methods——A Case of Heidaigou Open-pit Coal Mine in Inner Mongolia
张珂 1马亮 1王玥 1王鑫 1王勇1
作者信息
- 1. 内蒙古自治区地震局,呼和浩特 010010
- 折叠
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ML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.
Abstract
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(ML)and explosion equivalent,specific to mining explosion events,is established.This relationship provides an alternative method for estimating the explosion equivalent.
关键词
矿山爆炸/当量估算/爆炸地震效率/地方性震级MLKey words
Mining explosion/Equivalent estimation/Explosion seismic efficiency/Local magnitude ML引用本文复制引用
出版年
2024
NETL
NSTL
万方数据