岩塞爆破的振动加速度反应谱分析
|
摘要
根据汾河水库水下岩塞爆破监测的加速度时程曲线,选用卷积分法和快速傅立叶变换法两种反应谱的计算方法得到爆破振动加速度反应谱曲线和相应的动力放大系数谱曲线。通过对反应谱的分析,得到岩塞爆破反应谱的结构响应特性及其影响因素,为水下岩塞爆破的抗振设计提供了可靠的依据,具有较强的实际应用价值和指导意义。
According to FenHe Reservoir underwater rock plug blasting monitoring acceleration-time curve,blasting vibration acceleration response spectrum curve and the corresponding dynamic magnification factor spectrum curves were calculated by the convolution method and fast Fourier transform of two response spectrum method of calculation.Through analysis of the response spectrum,we obtained response spectrum response of the structure and its influencing factors.the results provides a reliable basis for Anti-vibration design of the underwater rock plug blasting,and has a strong practical value and significance.
According to FenHe Reservoir underwater rock plug blasting monitoring acceleration-time curve,blasting vibration acceleration response spectrum curve and the corresponding dynamic magnification factor spectrum curves were calculated by the convolution method and fast Fourier transform of two response spectrum method of calculation.Through analysis of the response spectrum,we obtained response spectrum response of the structure and its influencing factors.the results provides a reliable basis for Anti-vibration design of the underwater rock plug blasting,and has a strong practical value and significance.
引文
[1]丁刚德.微差爆破的爆破地震反应谱分析[J].爆破,1997,14(3):24-30.
[2]王俊平.爆破地震波对周围建筑物影响的分析[D].武汉:武汉理工大学,2005.
[3]刘超英.水下岩塞爆破地震反应谱分析[J].农村水利水电,2004:54-56.
[4]李夕冰.爆破参量对爆破地震反应谱的影响[J].爆破与冲击,2004,24(5):443-447.
[5]张健.人造地震动反应谱的计算[J].河海大学学报(自然科学版),2002,30(5):91-94.
[2]王俊平.爆破地震波对周围建筑物影响的分析[D].武汉:武汉理工大学,2005.
[3]刘超英.水下岩塞爆破地震反应谱分析[J].农村水利水电,2004:54-56.
[4]李夕冰.爆破参量对爆破地震反应谱的影响[J].爆破与冲击,2004,24(5):443-447.
[5]张健.人造地震动反应谱的计算[J].河海大学学报(自然科学版),2002,30(5):91-94.
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