摘要
在合理假设桩侧摩阻力在桩尖平面应力分布的基础上,推导了桩尖附近应力场公式,得出了在桩长、桩径、桩周土内摩擦角一定的情况下,桩尖地基应力与桩顶竖向动荷载的时程反应规律。并对影响桩尖地基应力的各因素进行了敏感分析,为桩尖附近其他地下结构的验算提供依据。
On the basis of friction resistance, formulae for stress near pile tip under vertic the reasonable as foundation stress al dynamic load is sumptions of stress fields near pile tip caused by side fields near pile tip are derived. made. The relations between Time-history analysis of the maximum stress and some sensing factors are deduced. The study provides useful references to the analysis of other underground structures near pile tip.
出处
《公路》
北大核心
2007年第11期64-67,共4页
Highway
关键词
竖向动荷载
桩尖地基应力
时程反应
vertical dynamic load
stress near pile tip
time history analysis
