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中文摘要：
以某隧道爆破施工为背景,运用有限元程序分析了爆破震动高程放大系数K＇与爆心距R的水平投影S比值（R/S）的变化特征,由此确定了考虑高程放大效应的爆破震动衰减规律.数值模拟的计算结果指导和优化了爆破施工,现场实测也表明,数值模拟的误差在工程允许的范围内,有助于城市复杂环境下爆破震动效应的预测以及爆破震动放大效应的理论研究.
英文摘要：
By taking a shallow tunnel as the research object,the correlation between K＇（the amplification effect coefficient of blasting vibration）and ratio R/S（R is the distance to blasting center,and S is the length of horizontal projection of the distance）was simulated numerically by using a dynamic finite element method,and the blasting vibration attenuation law considering the amplification effect was obtained.The result of the study was used to optimize the support parameters and provide guidance for construction.It is observed that numerical simulation results,on the whole,agree well with those of the field tests.It has some practical significance to the forecast of vibration effect and the theoretical study on amplification effect of vibration for blasting project under complicated condition of city.
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Dynamic responses of the vibration of the raft-superstructure on the saturated soil under moving loa
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