针对群桩墩处河床局部冲刷的复杂性，运用正态动床物理模型较好地预测了桥墩附近河床局部冲刷，并获得了现场监测结果的验证。

According to the local scouring around the pile foundation of the pylon, a normal movable-bed physical model test is conducted to predict the local scouring and is verified by the field measured data.

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主要的结论是：进一步验证了股指收益率的分布不是正态的，而是具有厚尾性；

The main conclusions are: (1)The return rate of stock index is verified further that it's not normal but with heavy tail;

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