摘要
采用薄层法层状半空间基本解答作为格林函数的边界元法 ,该方法可以有效的分析多层场地的动力问题 ,是解决土 -结构动力相互作用问题的一种有效工具。同时对粘弹性层状地基二维空沟主动隔振进行了详细的分析 ,提出了对于二维粘弹性层状地基屏障隔振效果的评价应综合考虑振幅衰减系数的设计标准和振幅幅值的设计标准 ,有助于空沟主动隔振的工程应用。
The BEM, for which the Green function is as fundamental solution of stratified half space obtained by Thin layered Method, is used in this paper for effective analyzing the dynamic problems in stratified foundation. It is an efficient tool for dynamic soil structure interaction problems. In this paper, the effects of active isolation of 2D open trench in stratified foundation are analyzed. A conclusion is given that the design criteria of amplitude reduction factor and amplitude magnitude should be considered synthetically, while assessing the effects of vibration isolation using open trench in 2D visco elastic layered field. The conclusion will be beneficial to application of active isolation with open trench in practice.
出处
《地下空间》
CSCD
2004年第3期391-394,401,共5页
Underground Space
基金
国家自然科学基金 (5 1 780 5 6 )
