不同微差间隔下爆破振动信号的反应谱分析
|
摘要
为研究不同微差间隔下爆破振动信号的反应谱特性,基于金堆城露天矿现场爆破振动试验数据,对不同微差间隔的两孔爆破振动信号进行了反应谱分析。首先,利用实测的爆破振动速度信号采用直接微分法获得了加速度信号,并利用EEMD分解对加速度信号进行低通滤波去噪处理,获得了准确清晰的加速度曲线。然后,利用精确法求得了不同微差间隔下爆破振动信号的速度反应谱和标准速度反应谱。分析结果表明:加速度峰值小的振动信号其速度反应谱峰值可能较大,不同微差间隔的爆破振动信号标准速度反应谱峰值对应的结构自振周期不同。因此可认为,降振合理微差的选择应结合爆破振动与建筑物的动态响应综合考虑。
In order to study the response spectrum property of basting vibration signals with different microsecond delay time,basing on monitored data on field blasting vibration in Jinduicheng open pit,the response spectrum analysis was done of two holes blasting vibration with different microsecond delay time.Firstly,the acceleration signal was obtained by direct differentiation method using monitored of VOD signal,the accurate and clear accelerating curve was gained by LPF(low pass filtering) De-noising processing using EEMD decomposition.Then,the velocity response spectrum and the standard velocity response spectrum of basting vibration signal with different microsecond delay time are given by exact methods.Analysis results show that the peak value of velocity response spectrum maybe larger the signals with less acceleration peak;the standard velocity response spectrum of blasting vibration signal with different microsecond delay time corresponded different natural vibration period.Therefore,it can be considered that choosing of reasonable delay time should comprehensive consider blasting vibration and dynamic response of construction.
In order to study the response spectrum property of basting vibration signals with different microsecond delay time,basing on monitored data on field blasting vibration in Jinduicheng open pit,the response spectrum analysis was done of two holes blasting vibration with different microsecond delay time.Firstly,the acceleration signal was obtained by direct differentiation method using monitored of VOD signal,the accurate and clear accelerating curve was gained by LPF(low pass filtering) De-noising processing using EEMD decomposition.Then,the velocity response spectrum and the standard velocity response spectrum of basting vibration signal with different microsecond delay time are given by exact methods.Analysis results show that the peak value of velocity response spectrum maybe larger the signals with less acceleration peak;the standard velocity response spectrum of blasting vibration signal with different microsecond delay time corresponded different natural vibration period.Therefore,it can be considered that choosing of reasonable delay time should comprehensive consider blasting vibration and dynamic response of construction.
引文
[1]宋光明,曾新吾,陈寿如,等.基于波形预测小波包分析模型的降振微差时间选择[J].爆炸与冲击,2003,23(2):163-168.
[2]凌同华,李夕兵,戴塔根,等.基于小波变换的时-能密度法优选微差延时时间[J].重庆建筑大学学报,2006,28(4):36-39.
[3]史秀志,田建军,王怀勇.冬瓜山矿爆破振动测试数据回归与时频分析[J].爆破,2008,25(2):77-80.
[4]FANG Ze-fa,WANG Jun-yue,ZHANG Jian-hua.Selectionof reasonable millisec on dinterval for Jinduicheng open-pit molybdenum mine[C]∥Proceeding of the 2007 Inter-national Symposium on Safety Scince and Technology:2394-2398.
[5]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.
[6]李夕兵,凌同华.爆炸参量对爆破地震反应谱的影响[J].爆炸与冲击,2004,24(5):443-447.
[7]唐鸿卿,吴新霞.频率对爆破地震反应谱的影响[J].爆破,2008,25(4):17-19.
[8]李洪涛,卢文波,舒大强.隧洞开挖爆破地震反应谱特征研究[J].爆炸与冲击,2008,28(4):331-334.
[9]荣立爽,孙建生.岩塞爆破的振动加速度反应谱分析[J].太原理工大学学报,2008,39(4):415-417.
[10]娄建武,龙源,方向,等.基于反应谱值分析的爆破震动破坏评估研究[J].爆炸与冲击,2003,23(1):41-46.
[11]丁刚德,王伟策,陈小波.微差爆破的爆破地震反应谱分析[J].爆破,1997,14(3):24-30.
[12]王凯,吴腾芳,季茂荣.微差爆破地震反应谱的研究[J].爆破,1997,14(4):1-6.
[13]张晓志,谢礼立,于海英.地震动反应谱的数值计算精度和相关问题[J].地震工程与工程振动,2004(6):15-26.
[14]中村小一郎.科学计算引论:基于MATLAB的数值分析[M].梁恒,刘晓艳,译.北京:电子工业出版社,2002.
[15]徐学勇,程康.爆破震动信号模极大值小波消噪方法的改进[J].爆炸与冲击,2009,29(3):194-198.
[16]熊正明,中国生.基于平移不变小波爆破振动信号去噪的应用研究[J].金属矿山,2006(2):12-15.
[17]李夕兵,张义平,左宇军,等.岩石爆破振动信号的EMD滤波与消噪[J].中南大学学报(自然科学版),2006,37(1):150-154.
[18]WU Zhao-hua,HUANG E.Ensemble empirical mode de-composition-a noise-assisted data analysis method[R].Calverton:Center for Ocean-Land-Atmosphere Studies,2005.
[19]曹冲锋,杨世锡,杨将新.大型旋转机械非平稳振动信号的EEMD降噪方法[J].振动与冲击,2009,28(9):33-39.
[20]李海涛,王成国,许跃生,等.基于EEMD的轨道—车辆系统垂向动力学的时频分析[J].中国铁道科学,2007,28(5):24-30.
[2]凌同华,李夕兵,戴塔根,等.基于小波变换的时-能密度法优选微差延时时间[J].重庆建筑大学学报,2006,28(4):36-39.
[3]史秀志,田建军,王怀勇.冬瓜山矿爆破振动测试数据回归与时频分析[J].爆破,2008,25(2):77-80.
[4]FANG Ze-fa,WANG Jun-yue,ZHANG Jian-hua.Selectionof reasonable millisec on dinterval for Jinduicheng open-pit molybdenum mine[C]∥Proceeding of the 2007 Inter-national Symposium on Safety Scince and Technology:2394-2398.
[5]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.
[6]李夕兵,凌同华.爆炸参量对爆破地震反应谱的影响[J].爆炸与冲击,2004,24(5):443-447.
[7]唐鸿卿,吴新霞.频率对爆破地震反应谱的影响[J].爆破,2008,25(4):17-19.
[8]李洪涛,卢文波,舒大强.隧洞开挖爆破地震反应谱特征研究[J].爆炸与冲击,2008,28(4):331-334.
[9]荣立爽,孙建生.岩塞爆破的振动加速度反应谱分析[J].太原理工大学学报,2008,39(4):415-417.
[10]娄建武,龙源,方向,等.基于反应谱值分析的爆破震动破坏评估研究[J].爆炸与冲击,2003,23(1):41-46.
[11]丁刚德,王伟策,陈小波.微差爆破的爆破地震反应谱分析[J].爆破,1997,14(3):24-30.
[12]王凯,吴腾芳,季茂荣.微差爆破地震反应谱的研究[J].爆破,1997,14(4):1-6.
[13]张晓志,谢礼立,于海英.地震动反应谱的数值计算精度和相关问题[J].地震工程与工程振动,2004(6):15-26.
[14]中村小一郎.科学计算引论:基于MATLAB的数值分析[M].梁恒,刘晓艳,译.北京:电子工业出版社,2002.
[15]徐学勇,程康.爆破震动信号模极大值小波消噪方法的改进[J].爆炸与冲击,2009,29(3):194-198.
[16]熊正明,中国生.基于平移不变小波爆破振动信号去噪的应用研究[J].金属矿山,2006(2):12-15.
[17]李夕兵,张义平,左宇军,等.岩石爆破振动信号的EMD滤波与消噪[J].中南大学学报(自然科学版),2006,37(1):150-154.
[18]WU Zhao-hua,HUANG E.Ensemble empirical mode de-composition-a noise-assisted data analysis method[R].Calverton:Center for Ocean-Land-Atmosphere Studies,2005.
[19]曹冲锋,杨世锡,杨将新.大型旋转机械非平稳振动信号的EEMD降噪方法[J].振动与冲击,2009,28(9):33-39.
[20]李海涛,王成国,许跃生,等.基于EEMD的轨道—车辆系统垂向动力学的时频分析[J].中国铁道科学,2007,28(5):24-30.
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