【摘要】 以某公路下穿京沪高铁为背景,运用有限元分析软件ABAQUS建立高铁桩基础和公路群桩整体的三维有限元模型,分析了公路施工荷载对既有高铁桩基产生的侧向位移增量、轴向应力增量、侧摩阻力增量、相对沉降增量,得出它们沿着桩长的分布规律,为完善设计和施工方案提供了技术支持、并为以后类似问题的研究提供了参考。更多还原

【Abstract】 Taking a highway beneath the Beijing-Shanghai high-speed railway as the background,finite element analysis software ABAQUS was adopted to build high-speed rail foundation and highway pile group of the whole three-dimensional finite element model.The lateral and axial displacement increment,friction stress increment and relative settlement increment on high-speed railway foundation produced by construction loads were analyzed,and their distribution law along the pile was obtained,which provide technical support for the study of similar problems,and also provide references for improving the design and construction scheme.更多还原