中文摘要：

在这份报纸，有土壤水联合的数字模拟有限元素有限的差别(FE-FD ) 分析被进行调查解决和一个堆积木排基础的过量毛孔水压力(EPWP ) 由于周期高速度(速度：300km/h ) 火车装载。在在一个月以内装载的火车下面在地面表明这数字模拟，解决和 EPWP 的表演由监视数据计算、证实，它证明解决和 EPWP 的变化能总体上被模仿很好。以便保证火车操作的安全，由断裂的 grouting 的反措施被建议。也就是，二个案例被分析在 No-4 最软的层和 No-9 堆积适用层的 grouting 分别地。在忍受层(No-9 层) 的堆积的断裂的 grouting 在减少解决上有更好的效果，这被发现。

英文摘要：

In this paper, numerical simulation with soil-water coupling finite element-finite difference（FE-FD） analysis is conducted to investigate the settlement and the excess pore water pressure（EPWP） of a piled-raft foundation due to cyclic high-speed（speed： 300km/h） train loading. To demonstrate the performance of this numerical simulation, the settlement and EPWP in the ground under the train loading within one month was calculated and confirmed by monitoring data, which shows that the change of the settlement and EPWP can be simulated well on the whole. In order to ensure the safety of train operation, countermeasure by the fracturing grouting is proposed. Two cases are analyzed, namely, grouting in No-4 softest layer and No-9 pile bearing layer respectively. It is found that fracturing grouting in the pile bearing layer（No-9 layer） has better effect on reducing the settlement.