近距离爆破对隧道结构影响的监测和HHT分析
|
摘要
近距离爆破产生的振动对隧道的安全有着不良的影响,根据现场监测的爆破振动数据进行回归分析和HHT变换分析。结果表明:在现有的爆破药量作用下,采石场的爆破作业不会对在建和已建隧道产生影响,瞬时能量能够很好地表征结构在瞬时受到的冲击情况,同时比单一速度分析更能直观地反映爆破振动对结构的影响,对相关工程具有一定的借鉴意义。
There was a harmful effect on the safety of the tunnel by close distance blasting vibration.HHT and regression analysis were used to analyze the monitoring data of blasting vibration.The results showed that with the quantity of explosive in existence,blasting operations could not impact the tunnel which had been built or was in construction;the instantaneous energy could be well used as a characterization of the impact of the structure in the momentary,while it could more intuitively reflect the influence of blasting vibration on the structure than analysis by single speed.It has some guiding significance to related projects.
There was a harmful effect on the safety of the tunnel by close distance blasting vibration.HHT and regression analysis were used to analyze the monitoring data of blasting vibration.The results showed that with the quantity of explosive in existence,blasting operations could not impact the tunnel which had been built or was in construction;the instantaneous energy could be well used as a characterization of the impact of the structure in the momentary,while it could more intuitively reflect the influence of blasting vibration on the structure than analysis by single speed.It has some guiding significance to related projects.
引文
(1)冯叔瑜,王中黔.地铁爆破的震动问题[J].中国铁道科学,1999,20(2):30-33.
(2)凌同华,李夕兵,陈文胜.基于小波分析的爆破地震效应评估[J].振动与冲击,2007,26(2):124-126.
(3)徐国元,中国生,熊正明.基于小波变换的爆破地震安全能量分析法的应用研究[J].岩土工程学报,2006,28(1):24-27.
(4)赵东平,王明年,贾玲利.路堑边坡开挖对邻近既有隧道影响研究[J].岩土力学,2009,30(5):1439-1443.
(5)傅洪贤,赵勇,谢晋水,等.隧道爆破近区爆破振动测试研究[J].岩石力学与工程学报,2011,30(2):335-341.
(6)王后裕,刘志杰,杨铁昌,等.地下工程改扩建中施工爆破对衬砌危害的三维数值模拟研究[J].振动与冲击,2007,26(6):74-78.
(7)张国华,陈礼彪,夏祥,等.大断面隧道爆破开挖围岩损伤范围试验研究及数值计算[J].岩石力学与工程学报,2009,28(8):1610-1620.
(8)中国生.基于小波变换爆破振动分析的应用基础研究(D).长沙:中南大学,2006.
(9)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.
(10)Huang N E,Shen Z,Long S R,et al.The EmpiricalMode Decomposition and the Hilbert Spectrum forNonlinear and No Stationary Time Series Analysis[J].Proceedings of the Royal Society of London,Series A,1998,454:903-995.
(11)Shen J J,Yen W P,O’Fallon J,et al.Interpretationand Application of Hilbert-Huang Transformation forSeismic Performance Analysis[J].Technical Councilon Lifeline Earthquake Engineering Monograph,2003,25(3):657-666.
(12)中华人民共和国国家标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.
(2)凌同华,李夕兵,陈文胜.基于小波分析的爆破地震效应评估[J].振动与冲击,2007,26(2):124-126.
(3)徐国元,中国生,熊正明.基于小波变换的爆破地震安全能量分析法的应用研究[J].岩土工程学报,2006,28(1):24-27.
(4)赵东平,王明年,贾玲利.路堑边坡开挖对邻近既有隧道影响研究[J].岩土力学,2009,30(5):1439-1443.
(5)傅洪贤,赵勇,谢晋水,等.隧道爆破近区爆破振动测试研究[J].岩石力学与工程学报,2011,30(2):335-341.
(6)王后裕,刘志杰,杨铁昌,等.地下工程改扩建中施工爆破对衬砌危害的三维数值模拟研究[J].振动与冲击,2007,26(6):74-78.
(7)张国华,陈礼彪,夏祥,等.大断面隧道爆破开挖围岩损伤范围试验研究及数值计算[J].岩石力学与工程学报,2009,28(8):1610-1620.
(8)中国生.基于小波变换爆破振动分析的应用基础研究(D).长沙:中南大学,2006.
(9)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.
(10)Huang N E,Shen Z,Long S R,et al.The EmpiricalMode Decomposition and the Hilbert Spectrum forNonlinear and No Stationary Time Series Analysis[J].Proceedings of the Royal Society of London,Series A,1998,454:903-995.
(11)Shen J J,Yen W P,O’Fallon J,et al.Interpretationand Application of Hilbert-Huang Transformation forSeismic Performance Analysis[J].Technical Councilon Lifeline Earthquake Engineering Monograph,2003,25(3):657-666.
(12)中华人民共和国国家标准.爆破安全规程(GB6722-2003)[S].北京:中国标准出版社,2004.
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