Although different kinds of foundations have been investigated against an earthquake faulting, the interaction between pile group and dip–slip fault has not yet been fully understood. This paper investigates the interaction between piled raft and normal faulting by means of centrifuge and numerical modelling. In centrifuge test, a piled raft was simulated with a half model for a better observation of fault rupture path under the raft. The loading transfer mechanism was further examined using a three-dimensional finite difference software. The measured and computed results showed that the piled raft displaced and tilted linearly with the magnitude of faulting. The fault rupture bifurcated into two and diverted towards both edges of the raft. Two types of loading transfer mechanism were identified during faulting. Working load transferred from the raft to the underneath piles, and also from the piles on the side of the hanging wall to the piles on the footwall side, resulting in compression failure of the piles on the footwall side.

中文翻译：

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砂中正断层桩筏荷载传递机制

尽管已经针对地震断层研究了不同类型的地基，但尚未完全了解桩群与倾滑断层之间的相互作用。本文通过离心机和数值模拟研究了桩筏与正常断层之间的相互作用。在离心机试验中，为了更好地观察筏下断层破裂路径，采用半模模拟桩筏。使用三维有限差分软件进一步检查负载转移机制。实测和计算结果表明，桩筏位移和倾斜随断层大小呈线性变化。断层破裂一分为二，并转向筏板的两个边缘。在故障期间确定了两种类型的负载转移机制。