摘要
以某地铁线路下穿高速公路桥梁为背景,通过有限元软件Abaqus,建立三维有限元模型,并计算分析了2种施工方案下隔离桩施工引起的桥梁基础变形及桩侧摩阻力变化。计算结果表明:隔离桩施工引起的桩侧摩阻力损失不大,可忽略。合理安排施工顺序,可降低隔离桩施工对既有桥梁基础的影响。
Taking one shield tunnel passing through a bridge of a highway as a back- ground,a 3D finite element model was established by Abaqus.The deformations of the bridge foundation and variations of the frictional resistance around piles were analyzed under two construction schemes. It is indicated that the loss of frictional resistances a- round piles was small and could be ignored. Furthermore, a reasonable arrangement of the construction order can mitigate the influences of isolating piles construction on the bridge foundation.
出处
《交通科学与工程》
2016年第3期63-67,共5页
Journal of Transport Science and Engineering
关键词
隔离桩
桥梁基础
有限元
isolating piles
bridge foundation
FEM
