Three‐dimensional finite element analysis of the interaction between tunneling and pile foundations
Three‐dimensional finite element analysis of the interaction between tunneling and pile foundations
复制标题
DOI：
10.1002/nag.194
复制
发表时间：
2002-03
影响因子：
4
通讯作者：
H. Mroueh;I. Shahrour
中科院分区：
文献类型：
--
作者：
H. Mroueh;I. Shahrour
本文主要分析城市隧道施工对邻近桩基的影响。它是使用弹塑性三维有限元模型进行的。数值模拟分两个阶段进行，分别涉及桩轴向荷载的应用和存在桩基的隧道施工。对单桩和群桩进行分析。数值模拟结果表明，隧道开挖会在相邻桩中产生显着的内力。内力的分布主要取决于桩端相对于隧道水平轴的位置以及桩轴距隧道中心的距离。对隧道掘进与一组桩之间的相互作用的分析揭示了积极的群体效应，后桩的内力大大降低。版权所有 © 2002 约翰威利父子有限公司
This paper concerns analysis of the impact of construction of urban tunnels on adjacent pile foundations. It is carried out using an elastoplastic three‐dimensional finite element modelling. Numerical simulations are performed in two stages, which concern, respectively, the application of the pile axial loading and the construction of the tunnel in presence of the pile foundations. Analysis is carried out for both single piles and groups of piles. Results of numerical simulations show that tunneling induces significant internal forces in adjacent piles. The distribution of internal forces depends mainly on the position of the pile tip regarding the tunnel horizontal axis and the distance of the pile axis from the centre of the tunnel. Analysis of the interaction between tunneling and a group of piles reveals a positive group effect with a high reduction of the internal forces in rear piles. Copyright © 2002 John Wiley & Sons, Ltd.