煤矿冻结立井爆破雷管微差延时识别研究  

Research on Detonator Millisecond Delay Time Recognition in Coal Mine Freezing Vertical Shaft Blasting

作　　者：付晓强[1] 杨立云[1] 陈程[1] 陈帅志 陈岐范 

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083 [2]兖矿集团有限公司,山东邹城273500

出　　处：《煤矿安全》2017年第4期55-58,共4页Safety in Coal Mines

基　　金：国家自然科学基金面上资助项目(51274203);国家自然科学基金青年基金资助项目(51404273);国家重点研发计划资助项目(2016YFC0600903)

摘　　要：以兖矿集团万福煤矿主立井掘进工程为背景,提出了新的井筒爆破振动监测方法。并在阐述固有时间尺度分解(ITD,Intrinsic Time-Scale Decomposition)分解和小波信号抑制理论基础上,对采集到的爆破振动信号进行了雷管微差识别。结果表明:组合方法能够精确识别出立井掘进中雷管实际起爆时刻,获取各段别雷管实际微差延时间隔。同时,提高低段别雷管精度并适当延长其起爆时差很大程度上可以防止振动波的叠加。In this paper, taking Yan Kuang Group Wanfu Coal Mine main vertical shaft excavation project as the background, anew blasting vibration monitoring method is proposed. And based on the intrinsic time scale decomposition （ITD） and waveletsignal suppression theory, blasting vibration signals were collected for the detonator differential recognition. The resuhs show thatcombination method can accurately identify the actual time of detonator in vertical shaft excavation blasting, to get the actualdetonator millisecond delay interval. At the same time, improve the detonator accuracy of low segment and extend the initiationtime properly can prevent the superposition of vibration wave.

关 键 词：固有时间尺度 小波分析 立井爆破 雷管微差识别 爆破振动信号 

分 类 号：TD235.1[矿业工程—矿井建设]