通过数值计算、模型试验和现场观测，对通榆河与苏北灌溉总渠立交地涵的泥沙淤积进行了综合分析。

By means of numerical calculation, model test and field investigation the sedimentation of the underground culvert at the main irrigation canal in North -Jiangsu Province was analysed.

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不同改河方案在不同洪水频率下河流弯道外侧呈现出冲刷状态，而内侧则呈现淤积状态，并且弯道半径不同，局部冲刷深度也不同；

Secondly, different changes in river programs, it's outside of river bend shows erosion status in different flood frequencies. And the localscour depth is different with different bend radius.

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