Influence of tunnelling on pile foundations

将研究隧道施工对现有桩基性能的影响。特别是建立隧道开挖对群桩承载力、群桩平均沉降、群桩差沉降、群桩倾斜、群桩及承台荷载和弯矩的影响预测模型，合理评估隧道开挖对建筑物的影响。由于世界上许多城市将交通基础设施置于地下的趋势日益增长，因此这项工作是重要和及时的。

The effects of tunnel construction on the behaviour of existing pile foundations will be investigated. In particular, models will be developed to predict the influence of tunnel excavation on the bearing capacity, average settlement, differential settlement and tilt of pile groups and the loads and bending moments induced in the piles of the group and the pile cap. These models will allow rational assessment of the effects on buildings undermined by tunnels. This work is significant and timely because of the growing trend to place transport infrastructure underground in many cities of the world.