【摘要】 利用地基处理中夯锤对地面的冲击 ,模拟建筑物爆破倒塌触地产生的震动。推导了夯锤对地面冲击力的表达式 ,并分析了影响冲击力的因素。介绍了实测的地面质点振速及其波形 ,给出了根据实测数据拟合的振动速度公式以及本试验条件下公式中Ka、α系数的值。同时提出了减小建筑物倒塌触地震动的技术措施更多还原

【Abstract】 The impact of a tamper to the ground in foundation treatment was used to simulate the touchdown vibration on collapsing of the building demolished by blasting method An expression of impacting force of the tamper to the ground was derived and the factors of influencing the impacting force were studied The determined ground particle vibration velocities and their waveforms were introduced The formula of vibration velocity,fitted on the basis of the determined data,and the values of coefficient K a,α in the formula in present testing conditions were given At the same time,the technological measures of reducing the touchdown vibration on collapsing of buildings were presented更多还原