砂石垫层在水平振动下的响应分析

摘要

基于二维模拟实验，研究了在水平动荷载下砂石垫层动力的反应情况，对一个固定频率状况下颗粒响应后产生的位移及内部的耗散性能进行了分析，探讨了振动时间对散体材料结构影响及竖向深度方向下的响应规律，为更好的研究散体材料结构的减震特性提供了科学的依据。%Based on two-dimensional simulation experiment,the paper studies the dynamic response conditions of sand-gravel cushion under hori-zontal load,analyzes particle displacement and internal dissipation under a fixed frequent conditions,and explores the response law of vibration time upon discrete material structure and vertical depth,which has provided scientific basis for better studying seismic reducing properties of dis-crete material structure.