工程爆破

2011, v.17;No.64(02) 12-14

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爆破地震作用下地基的动力响应分析
DYNAMIC RESPONSE ANALYSIS OF THE FOUNDATION UNDER BLASTING SEISM ACTION

田岗;毕卫国;燕永峰;孔祥洋;
TIAN Gang,BI Wei-guo,YAN Yong-feng,KONG Xiang-yang (Shandong Civil Engineering and Disaster-reduction Key Laboratories (Shandong University of Science and Technology),Qingdao 266510,Shandong,China)

摘要(Abstract):

通过简化爆破荷载的形式,对爆破振动作用下地基位移方程进行了推导,在此基础上给出了爆破作用下影响地基位移的诸要素,并提出了地基位移幅值在爆破作用下的变化规律,这对结构抗震工作的开展有着重要意义。
Displacement equation of foundation under blasting vibration action was deducted through simplifying blasting load.Base on this,factors affecting the foundation displacement under blasting action were pointed out and the variation law of the foundation displacement amplitude under blasting action was put forward,which is important significance for the development of structural antiseismic work.

关键词(KeyWords): 爆破振动;地基位移;强迫振动;量纲分析;放大效应
Blasting vibration;Foundation displacement;Forced vibration;Dimensional analysis;Amplification effect

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.50878123);; 山东省土木工程防灾减灾重点实验室基金

作者(Author): 田岗;毕卫国;燕永峰;孔祥洋;
TIAN Gang,BI Wei-guo,YAN Yong-feng,KONG Xiang-yang (Shandong Civil Engineering and Disaster-reduction Key Laboratories (Shandong University of Science and Technology),Qingdao 266510,Shandong,China)

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