横门口汇流区烂山浅滩整治方法研究

烂山浅滩是横门口多叉汇流的宽浅浅滩，水流泥沙运动相当复杂。本文在详细分析浅滩的动力、成因、演变后，提出用围筑物调整中水河槽，以枯季平均高潮位为整治水位的整治坝工与疏浚相结合的整治方案，经数模和河工模型试验，达到设计效果。

Lanshan Shoal is a wide shallow shoal reach with many tributaries in Hengmen River Mouth, at which the motion of water and sediment is very complicated. Based on the detailed analyses of the motive power, reason of forming and evolution of the shoal, the regulation scheme that “to regulate mean water river bed by cofferdam and use mean high tide of dry season as the regulated level by combining regulation structures with dredging”is put forward. It is proved that the regulation effect has reached the design requirement by mathematical model and river engineering model test.