工程爆破

2009, v.15;No.58(04) 69-71+89

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临近铁路爆破对其振动影响的监测分析
VIBRATION MONITORING AND ANALYZING ON BLASTING IN THE VICINITY OF RAILWAY

李吉民;赵明生;崔正荣;
LI Ji-min1,ZHAO Ming-sheng1,CUI Zheng-rong2(1.School of Resource and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;2.Department of Mining Engineering,Sinosteel Ma′anshan Institute of Mining Research,Ma′anshan 243004,Anhui,China)

摘要(Abstract):

临近铁路开挖爆破,会引起铁路振动响应。为确保铁路安全,对爆破振动进行实时监测、对实测数据回归分析,并基于MATLAB软件信号分析处理平台对轨道处振动信号进行时-能分析;提出了不同爆心距的最大一段安全起爆药量,并增大排间毫秒延时来减少爆破振动的叠加所造成的危害。
Excavation blasting nearby railway may lead to vibration response.In order to ensure the safety of railway,based on regression analysis of the measured data from real-time monitoring of blasting vibration and analyzing time-energy for vibration signal through MATLAB,the paper proposed a safe maximum charge of one section in the different blast center distances and the idea of reducing vibrating danger from blasting vibration superposition by increasing the millisecond delay of row spacing.

关键词(KeyWords): 开挖爆破;振动测试;时-能分析;铁路安全
Blasting excavation;Vibration testing;Time-energy analysis;Railway safety

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作者(Author): 李吉民;赵明生;崔正荣;
LI Ji-min1,ZHAO Ming-sheng1,CUI Zheng-rong2(1.School of Resource and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;2.Department of Mining Engineering,Sinosteel Ma′anshan Institute of Mining Research,Ma′anshan 243004,Anhui,China)

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