隧道掘进爆破振动对地表影响的小波包分析

费鸿禄 曾翔宇 杨智广

费鸿禄, 曾翔宇, 杨智广. 隧道掘进爆破振动对地表影响的小波包分析[J]. 爆炸与冲击, 2017, 37(1): 77-83. doi: 10.11883/1001-1455(2017)01-0077-07
引用本文: 费鸿禄, 曾翔宇, 杨智广. 隧道掘进爆破振动对地表影响的小波包分析[J]. 爆炸与冲击, 2017, 37(1): 77-83. doi: 10.11883/1001-1455(2017)01-0077-07
Fei Honglu, Zeng Xiangyu, Yang zhiguang. Influence of tunnel excavation blasting vibration on earth's surface based on wavelet packet analysis[J]. Explosion And Shock Waves, 2017, 37(1): 77-83. doi: 10.11883/1001-1455(2017)01-0077-07
Citation: Fei Honglu, Zeng Xiangyu, Yang zhiguang. Influence of tunnel excavation blasting vibration on earth's surface based on wavelet packet analysis[J]. Explosion And Shock Waves, 2017, 37(1): 77-83. doi: 10.11883/1001-1455(2017)01-0077-07

隧道掘进爆破振动对地表影响的小波包分析

doi: 10.11883/1001-1455(2017)01-0077-07
详细信息
    通讯作者:

    费鸿禄(1963—),男,博士,教授,feihonglu@163.com

  • 中图分类号: O383

Influence of tunnel excavation blasting vibration on earth's surface based on wavelet packet analysis

  • 摘要: 基于现场实测隧道掘进爆破振动信号数据,采用小波包分析技术对振动信号进行小波包能量谱分析,得到爆破振动信号能量在各频带上的分布。通过比较各点分析结果可以发现隧道掘进爆破地震波能量主要集中在切向与径向。在沿隧道掘进方向随着与掌子面之间距离的增大地震波的主频下降,能量主要集中频带也越来越窄,并且向低频带发展;而在垂向上地震波主频随着埋深的减小而减小,同时地震波的能量主要集中频带也越来越窄并且向低频带发展。最后从能量的角度探讨隧道掘进爆破地震波沿各个方向的衰减规律。
  • 图  1  监测点的布置

    Figure  1.  Layout of survey points

    图  2  各测点爆破振动信号能量谱分布

    Figure  2.  Energy distribution of blasting vibration signals at measuring points

    图  3  各监测点总能量与距离的关系

    Figure  3.  Relationship between energy and distance at measuring points

    图  4  各监测点主频与距离关系

    Figure  4.  Relationship between main frequency and distance at measuring points

    表  1  现场测试相关参数

    Table  1.   Site test related parameters

    监测编号 h/m H/m Q/kg q/kg n
    1 395.88 371.330 104.0 22.3 1, 3, 5, 7, 9, 11
    2 425.53 373.653 108.0 23.1 1, 3, 5, 7, 9, 11, 13
    3 422.58 374.117 115.5 24.8 1, 3, 5, 7, 9, 11, 13
    4 386.87 371.796 124.0 30.9 1, 3, 5, 7, 9, 11, 13
    5 428.87 373.188 116.0 24.9 1, 3, 5, 7, 11, 13
    下载: 导出CSV

    表  2  爆破振动信号小波包分析结果

    Table  2.   Wavelet packet analysis results of blasting vibration signals

    监测点 v/(cm·s-1) f/Hz ω/Hz E/(cm2·s-2) P/%
    A(x方向) 1.07 71.4 23.438~144.532 70.217 60.337
    A(y方向) 1.02 43.5 0~121.094 92.451 69.230
    A(z方向) 0.89 47.0 7.813~105.469 93.696 61.968
    B(x方向) 1.64 56.9 0~117.188 112.989 61.884
    B(y方向) 1.29 80.0 7.813~121.094 120.756 63.740
    B(z方向) 1.30 88.3 7.813~125.000 117.492 67.396
    C(x方向) 1.28 83.3 0~121.094 60.818 79.265
    C(y方向) 1.14 67.6 0~58.594 71.264 68.374
    C(z方向) 1.30 66.7 15.625~121.094 74.969 70.953
    D(x方向) 0.55 65.5 15.625~121.094 24.121 81.937
    D(y方向) 0.66 56.7 0~125.000 41.828 88.419
    D(z方向) 0.39 57.6 7.813~125.000 40.958 71.735
    E(x方向) 0.49 60.0 0~121.094 32.180 89.206
    E(y方向) 0.40 56.3 3.906~121.094 28.431 90.759
    E(z方向) 0.42 58.0 15.625~121.094 31.370 86.939
    F(x方向) 1.72 40.6 7.813~117.188 142.572 72.473
    F(y方向) 1.41 46.4 3.906~125.000 137.659 81.569
    F(z方向) 1.37 52.7 15.625~121.094 145.762 69.132
    下载: 导出CSV
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出版历程
  • 收稿日期:  2015-04-30
  • 修回日期:  2015-08-25
  • 刊出日期:  2017-01-25

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