动静荷载作用下基础沉降规律的对比分析  

The Contrastive Analysis of Foundation Settlement Laws under Dynamic Load and Static Load

作　　者：孙世国[1] 赵瑞华[1] 赵雪芳[1] 易亚楠 崔琴焕 

机构地区：[1]北方工业大学土木工程学院,北京100144

出　　处：《公路工程》2015年第5期11-13,共3页Highway Engineering

基　　金：国家自然科学基金(41172250);国家十二五科技支撑项目(2012BAK09B06);北京市创新人才项目(PHR201006118);北京市科研基地建设-科研创新平台;科研专项(XN083;XN107)

摘　　要：以北京某混凝土路面为研究对象,应用数值模拟分析方法对静荷载、动荷载作用两者工况下基础沉降变化特点进行了对比研究。通过对两种工况下应力应变场演变规律的分析,揭示了动荷载和静荷载对基础的影响机制的不同及其关系,分别确定其影响深度及其沉降特点,从而为安全维护提供了决策依据。With a pavement in Beijing being the research object,this paper conducts the contrastive research on the characteristics of foundation settlement changes of static load and dynamic load by the method of numerical simulation analysis.Through the analysis of evolution laws of stress-strain under the two conditions,the relationship and the differences of effect mechanism of foundation under the two loads have been revealed,and the influence depth and settlement characteristics are determined respectively, which provide decision-making basis for the safe maintenance.

关 键 词：基础 沉降变化 数值模拟 动荷载 静荷载 

分 类 号：U416.1[交通运输工程—道路与铁道工程]