城镇复杂环境下的顶管隧道爆破
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摘要
以腾冲县太极桥景区顶管隧道爆破施工为背景,设计了腾冲县顶管爆破工程掘进断面的爆破参数,并进行现场爆破试验,根据最小二乘法原理对监测到的爆破震动速度进行回归分析,得到该场地的爆破地震波传播衰减规律。通过Fourier变换进行了爆破振动的功率谱分析,得到爆破振动能量分布的优势频率。
Take the pipe-jacking blasting construction to Taiji bridge scenic area of Tengchong county as an example,the blast parameters of advancement was designed for excavation,and meeting blast test.The regression analysis of blasting vibration velocity was done by the least squares principle,and finally the law of blasting vibration propagation was obtained at this area.The lasting vibration was analyzed by Fourier transform power spectrum,and the advantages frequency of energy distribution of the blasting vibration was obtained.
Take the pipe-jacking blasting construction to Taiji bridge scenic area of Tengchong county as an example,the blast parameters of advancement was designed for excavation,and meeting blast test.The regression analysis of blasting vibration velocity was done by the least squares principle,and finally the law of blasting vibration propagation was obtained at this area.The lasting vibration was analyzed by Fourier transform power spectrum,and the advantages frequency of energy distribution of the blasting vibration was obtained.
引文
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[4]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.[4]FEI Hong-lu,MA Nuo-nuo.Wavelet energy analysis of blas-ting vibration frequency band on dam foundation excavation[J].2010,27(3):99-104.(in Chinese)
[5]耿贵刚,池恩安,刘凤钱.基于双谱时延估计的爆心距定位研究[J].爆破,2011,28(1):14-17.[5]GENG Gui-gang,CHI En-an,LIU Feng-qian.Bispectrumtime delay estimation based on localization[J].Blasting,2011,28(1):14-17.(in Chinese)
[6]庙延钢,栾龙发.爆破工程与安全技术[M].北京:化学工业出版社,2007.[6]MIAO Yan-gang,LUAN Long-fa.Blasting and safety tech-nology[M].Beijing:Chemical Industry Press,2007.(inChinese)
[7]李夕兵,张义平,刘志祥,等.爆破震动信号的小波分析与HHT变换[J].爆炸与冲击,2005,25(6):528-535.[7]LI Xi-bing,ZHANG Yi-ping,LIU Zhi-xiang,et al.Wave-let analysis of blasting vibration and HHT transform[J].Explosion and Shock Waves,2005,25(6):528-535.(inChinese)
[8]林大超,施惠基,白春华,等.爆炸地震效应的时频分析[J].爆炸与冲击,2003,23(1):31-35.[8]LIN Da-chao,SHI Hui-ji,BAI Chun-hua,et al.Explosionseismic effect of time-frequency analysis[J].Explosionand Shock Waves,2003,23(1):31-35.(in Chinese)
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