吕淑然,胡刚,杨军
LU Shu ran,HU Gang,YANG Jun (Beijing Institute of Technology,Beijing 100081,China)

• 1:北京理工大学
• 2:北京理工大学
• 3:北京理工大学 北京100081
• 4:北京100081

摘要(Abstract)：

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
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

关键词(KeyWords)： 建筑物倒塌;触地震动;夯击震动;模拟试验
Collapsing of buildings; Vibration of touchdown; Tamping vibration; Simulating test

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吕淑然,胡刚,杨军
LU Shu ran,HU Gang,YANG Jun (Beijing Institute of Technology,Beijing 100081,China)

参考文献(References)：

• 〔1〕顾晓鲁,钱鸿缙,刘慧珊,汪时敏.地基与基础(第2版)[M],北京:中国建筑工业出版社,1993.
• 〔2〕杜力译.钢筋混凝土建筑物在爆破拆除时的振动及噪声的研究[J].爆破,1995,12(4):56-61.
• 〔3〕李守巨.爆破拆除建筑物触地引起地表振动的研究[A].工程爆破文集[C].武汉:中国地质大学出版社,1993.
• 〔4〕何憔登.地震勘探原理和方法[M ].北京:地质出版社,1996.
• 〔5〕亨利奇J .爆炸动力学及其应用[M ].北京:科学出版社,1987.