大坝爆破振动响应评估分析
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摘要
工程爆破对周围建(构)筑物造成不同程度的负面影响。结合某大坝近区隧道开挖的爆破振动监测数据,通过频谱分析获取该坝体的主振频率,利用小波多分辨率技术研究不同频率段内爆破振动能量的分布规律,利用三维有限元模型对空库和满库情况下的坝体进行模态分析,最终综合主振频率、振动能量、振动模态以及质点峰值振速作为爆破振动效应的安全判据,得出爆破振动对该大坝安全影响较小的结论。分析结果对于类似工程的爆破振动安全评估研究具有一定的指导意义。
The safety assessment for blasting vibration of the tunnel excavation near a dam is presented.Spectral analysis is performed to obtain the vibration frequencies.Wavelet multi-resolution analysis is used to extract the vibration energy in different frequency bands,and the energy distribution is also discussed.3D finite element vibration modal analysis of the dam with empty or full reservoir is conducted.Considering the safety criterion including vibration frequency,energy,structural modal parameters,and peak values of vibration velocity,we find the dam is safe under the impact of blasting vibration.The result is also helpful for the safety assessment of blasting vibration for similar projects.
The safety assessment for blasting vibration of the tunnel excavation near a dam is presented.Spectral analysis is performed to obtain the vibration frequencies.Wavelet multi-resolution analysis is used to extract the vibration energy in different frequency bands,and the energy distribution is also discussed.3D finite element vibration modal analysis of the dam with empty or full reservoir is conducted.Considering the safety criterion including vibration frequency,energy,structural modal parameters,and peak values of vibration velocity,we find the dam is safe under the impact of blasting vibration.The result is also helpful for the safety assessment of blasting vibration for similar projects.
引文
[1]阳生权,廖先葵,刘宝琛.爆破地震安全判据的缺陷与改进[J].爆炸与冲击,2001,21(3):223-227.(YANG Sheng-quan,LIAO Xian-kui,LIU Bao-chen.Default of the Judging Standard of Blasting Vibration Safe-ty[J].Journal of Vibration and Shock,2001,21(3):223-227.(in Chinese))
[2]汪旭光,于亚伦.关于爆破震动安全判据的几个问题[J].工程爆破,2001,7(2):88-92.(WANG Xu-guang,YU Ya-lun.On Several Problems of Safety Crite-rion for Blasting Vibration[J].Engineering Blasting,2001,7(2):88-92.(in Chinese))
[3]王振宇,梁旭,陈银鲁.基于输入能量的爆破震动安全评价方法研究[J].岩石力学与工程学报,2010,29(12):2492-2499.(WANG Zhen-yu,LIANG Xu,CHEN Yin-lu.Study of Safety Evaluation Method of Blas-ting Vibration Based on Input Energy[J].Chinese Jour-nal of Rock Mechanics and Engineering,2010,29(12):2492-2499.(in Chinese))
[4]娄建武,龙源,方向,等.基于反应谱值分析的爆破地震动破坏评估研究[J].爆破与冲击,2003,23(1):41-45.(LOU Jian-wu,LONG Yuan,FANGXiang,et al.Study on Blasting Vibration Damage Basedon Response Spectrum[J].Explosion and Shock Waves,2003,23(1):41-45.(in Chinese))
[5]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].岩土力学与工程学报,2004,23(1):101-105.(LIN Da-chao,SHI Hui-ji,BAIChun-hua,et al.Time-frequency Characteristic Analysisof Blasting Vibration Based on Wavelet Transform[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):101-105.(in Chinese))
[6]中国生,房营光,徐国元.基于小波变换的建(构)筑物爆破振动效应评估研究[J].振动与冲击,2008,27(8):121-125.(ZHONG Guo-sheng,FANG Ying-guang,XU Guo-yuan.Study on Blasting Vibration EffectAssessment of Structure Based on Wavelet Transform[J].Journal of Vibration and Shock,2008,27(8):121-125.(in Chinese))
[7]MALLAT S.A Theory for Multi-resolution Signal Decom-position:The Wavelet Transform[J].IEEE Transactionson Pattern Analysis and Machine Intelligence,1989,11(7):674-693.
[8]GB6722-2003,爆破安全规程[S].北京:中国标准出版社,2003.(GB6722-2003,Code of Blasting Safety[S].Beijing:Standards Press of China,2003.(in Chi-nese))
[9]杭州交通爆破工程有限公司.杭长高速鱼石岭隧道掘进爆破设计及安全防范意见[R].杭州:杭州交通爆破工程有限公司,2009.(Hangzhou Traffic Blasting En-gineering Co.,Ltd.Blasting Design and Safety Advicefor Yushiling Tunnel of Hangzhou-Changxin Expressway[R].Hangzhou:Hangzhou Traffic Blasting EngineeringCo.,Ltd,2009.(in Chinese))
[10]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2004.(YU Ya-lun.Theory and Technology ofEngineering Blasting[M].Beijing:Metallurgical IndustryPress,2004.(in Chinese))
[11]邹云屏,李潇.信号变换与处理[M].武汉:华中理工大学出版社,1993.(ZOU Yun-ping,LI Xiao.Sig-nal Conversion and Processing[M].Wuhan:HuazhongUniversity of Science and Technology Press,1993.(inChinese))
[12]葛哲学,沙威.小波分析理论与MATLAB R2007实现[M].北京:电子工业出版社,2007.(GE Zhe-xue,SHA Wei.Wavelet Analysis Theory and RealizationThrough MATLAB R2007[M].Beijing:Electronics In-dustry Press,2007.(in Chinese))
[13]王海波,李德玉.拱坝抗震设计理论与实践[M].北京:中国水利水电出版社,2006.(WANG Hai-bo,LIDe-yu.Theory and Practice of Seismic Design of ArchDam[M].Beijing:China Water Power Press,2006.(inChinese))
[2]汪旭光,于亚伦.关于爆破震动安全判据的几个问题[J].工程爆破,2001,7(2):88-92.(WANG Xu-guang,YU Ya-lun.On Several Problems of Safety Crite-rion for Blasting Vibration[J].Engineering Blasting,2001,7(2):88-92.(in Chinese))
[3]王振宇,梁旭,陈银鲁.基于输入能量的爆破震动安全评价方法研究[J].岩石力学与工程学报,2010,29(12):2492-2499.(WANG Zhen-yu,LIANG Xu,CHEN Yin-lu.Study of Safety Evaluation Method of Blas-ting Vibration Based on Input Energy[J].Chinese Jour-nal of Rock Mechanics and Engineering,2010,29(12):2492-2499.(in Chinese))
[4]娄建武,龙源,方向,等.基于反应谱值分析的爆破地震动破坏评估研究[J].爆破与冲击,2003,23(1):41-45.(LOU Jian-wu,LONG Yuan,FANGXiang,et al.Study on Blasting Vibration Damage Basedon Response Spectrum[J].Explosion and Shock Waves,2003,23(1):41-45.(in Chinese))
[5]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].岩土力学与工程学报,2004,23(1):101-105.(LIN Da-chao,SHI Hui-ji,BAIChun-hua,et al.Time-frequency Characteristic Analysisof Blasting Vibration Based on Wavelet Transform[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(1):101-105.(in Chinese))
[6]中国生,房营光,徐国元.基于小波变换的建(构)筑物爆破振动效应评估研究[J].振动与冲击,2008,27(8):121-125.(ZHONG Guo-sheng,FANG Ying-guang,XU Guo-yuan.Study on Blasting Vibration EffectAssessment of Structure Based on Wavelet Transform[J].Journal of Vibration and Shock,2008,27(8):121-125.(in Chinese))
[7]MALLAT S.A Theory for Multi-resolution Signal Decom-position:The Wavelet Transform[J].IEEE Transactionson Pattern Analysis and Machine Intelligence,1989,11(7):674-693.
[8]GB6722-2003,爆破安全规程[S].北京:中国标准出版社,2003.(GB6722-2003,Code of Blasting Safety[S].Beijing:Standards Press of China,2003.(in Chi-nese))
[9]杭州交通爆破工程有限公司.杭长高速鱼石岭隧道掘进爆破设计及安全防范意见[R].杭州:杭州交通爆破工程有限公司,2009.(Hangzhou Traffic Blasting En-gineering Co.,Ltd.Blasting Design and Safety Advicefor Yushiling Tunnel of Hangzhou-Changxin Expressway[R].Hangzhou:Hangzhou Traffic Blasting EngineeringCo.,Ltd,2009.(in Chinese))
[10]于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2004.(YU Ya-lun.Theory and Technology ofEngineering Blasting[M].Beijing:Metallurgical IndustryPress,2004.(in Chinese))
[11]邹云屏,李潇.信号变换与处理[M].武汉:华中理工大学出版社,1993.(ZOU Yun-ping,LI Xiao.Sig-nal Conversion and Processing[M].Wuhan:HuazhongUniversity of Science and Technology Press,1993.(inChinese))
[12]葛哲学,沙威.小波分析理论与MATLAB R2007实现[M].北京:电子工业出版社,2007.(GE Zhe-xue,SHA Wei.Wavelet Analysis Theory and RealizationThrough MATLAB R2007[M].Beijing:Electronics In-dustry Press,2007.(in Chinese))
[13]王海波,李德玉.拱坝抗震设计理论与实践[M].北京:中国水利水电出版社,2006.(WANG Hai-bo,LIDe-yu.Theory and Practice of Seismic Design of ArchDam[M].Beijing:China Water Power Press,2006.(inChinese))
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