抛掷爆破当量与震级对应关系及波形特征研究——以黑岱沟露天煤矿为例  

Research on the Correspondence between Throwing Blasting Equivalent and Earthquake Magnitude,as well as Waveform Characteristics——Taking the Heidaigou Open-pit Coal Mine as an Example

作　　者：郭伟 刘芳[1] 范玲玲 GUO Wei;LIU Fang;FAN Lingling(Earthquake Agency of Inner Mongolia Autonomous Region,Hohhot,Inner Mongolia 010010,China)

机构地区：[1]内蒙古自治区地震局,内蒙古呼和浩特010010

出　　处：《山西地震》2024年第4期11-15,20,共6页Earthquake Research in Shanxi

基　　金：中国地震局监测、预报、科研三结合课题(3JH-202401052);内蒙古自治区地震局科技服务项目(ZNKJ-2020-5)。

摘　　要：为防范和化解矿震可能带来的重大风险,提高对矿震的预测和防范能力,开展震级和爆破当量对应关系的研究尤为必要。本文采用正交回归方法,基于2017-2022年内蒙古测震台网和邻省共计108个台站所记录的黑岱沟煤矿69次爆破事件,拟合得到震级和爆破当量的经验关系为M_(L)=0.7063lgY+0.688,可通过控制爆破当量估算震级,避免潜在的人员伤亡和煤矿因停产整改造成的经济损失,实现抛掷爆破振动控制为矿山安全、持续生产提供技术支撑,服务社会安全生产。通过对比分析黑岱沟露天煤矿天然地震和爆破波形特征,总结出天然地震和爆破的判别依据,为更好地识别天然地震和爆破提供科学参考。To further prevent and resolve the significant risks potentially caused by mine-induced seismic events,it is necessary to conduct research on the corresponding relationship between earthquake magnitude and blasting equivalent,and continuously improve the ability to predict and prevent mining earthquakes.In this paper,the orthogonal regression method is adopted.Based on the 69 blasting events recorded by the Inner Mongolia seismic network and 108 stations in neighboring provinces during 2017-2022,the empirical relationship between seismic magnitude and blasting equivalent is calculated as M_(L)=0.7063lgY+0.688,so that the magnitude can be estimated by controlling the blasting equivalent.his approach helps avoid potential casualties and economic losses from production halts for safety inspections,supporting controlled blast vibration for safe,continuous mining operations and promoting social safety in production.Additionally,by comparing the waveform characteristics of natural and blast-induced seismic events at the Heidaigou open-pit coal mine,distinguishing criteria for natural earthquakes and blasts were summarized,providing a scientific reference for better identification of natural and blast events.

关 键 词：震级 黑岱沟露天煤矿 抛掷爆破 当量 

分 类 号：P315.32[天文地球—地震学]