段药量对爆破振动信号时频特性的影响研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
为研究段药量对爆破振动信号时频特性的影响,进行不同段药量的单孔爆破振动试验。基于实测数据,利用小波分析和AOK时频分布相结合的方法,对不同段药量的爆破振动信号在不同频带内展开,并以频带能量比、频带能量持续时间为指标,研究段药量对爆破振动信号时频特性的影响。结果表明,段药量对爆破振动信号时频特性影响很大:随着段药量的增加,爆破振动信号的低频能量所占总能量的比例增加且频带能量的持续时间相应延长。研究成果可揭示段药量对爆破振动信号时频特性的影响,并为从能量的角度进行抗振、降振的研究提供分析基础。
In order to study the influence of deck charge on time-frequency characteristics of blasting vibration signals,single-hole blasting tests with different deck charges were conducted.Based on the measured data,using the combined method of wavelet analysis and AOK time-frequency distribution to expand the blasting vibration signals with different deck charge in different frequency band,and using band energy ratio and band energy duration as indexes,the influence of deck charge on time-frequency characteristics of blasting vibration signals was analyzed.The results showed that deck charge has large effects on time-frequency characteristics of blasting vibration signals;with increase in deck charge,the proportion of lower frequency energy in total energy increases and band energy duration extends.The results provided a basis for studying the influence of deck charge on time-frequency characteristics of blasting vibration signals,anti-vibration and vibration reduction.
引文
[1]林大超,施惠基,白春华,等.基于小波变换的爆破振动时频特征分析[J].岩石力学与工程学报,2004,23(1):101-106.
    [2]中国生,敖丽萍,赵奎.基于小波包能量谱爆炸参量对爆破振动信号能量分布的影响[J].爆炸与冲击,2009,29(3):300-305.
    [3]张丹,段恒建,曾福洪.分段爆破地震强度的试验研究[J].爆炸与冲击,2006,26(3):279-284.
    [4]凌同华,李夕兵,王桂尧,等.爆心距对爆破振动信号频带能量分布的影响[J].重庆建筑大学学报,2007,29(2):53-55.
    [5]史秀志,田建军,王怀勇.冬瓜山矿爆破测试数据回归与时频分析[J].爆破,2008,25(2):77-80.
    [6]赵明生,张建华,易长平.基于单段波形叠加的爆破振动信号时频分析[J].煤炭学报,2010,35(8):1279-1282.
    [7]刘喜武,张宁,勾永峰,等.地震勘探信号时频分析方法对比与应用分析[J].地球物理学进展,2008,23(3):743-753.
    [8]张子瑜,陈进,史习智,等.径向高斯核函数时频分布及在故障诊断中的应用[J].振动工程学报,2001,14(1):53-59.
    [9]王晓凯,高静怀,何洋洋.基于时频自适应最优核的时频分析方法[J].系统工程与电子技术,2010,32(1):22-26.
    [10]飞思科技产品研发中心.MATLAB辅助信号处理技术与应用[M].北京:电子工业出版社,2005.
    [11]张义平,王永明.台阶表面水介质对爆破地震波传播影响研究[J].矿业研究与开发,2009,29(3):75-77.
    [12]叶海旺,石文杰,王二猛.金堆城露天矿生产爆破合理微差时间的探讨[J].爆破,2010,27(1):96-99.
    [13]费鸿禄,马诺诺.坝基开挖爆破振动频带小波能量分析[J].爆破,2010,27(3):99-104.
    [14]林键,林从谋,林丽群.爆破振动荷载作用下3~4层房屋结构响应测试研究[J].振动与冲击,2010,29(3):48-53.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心