湘江近尾洲枢纽扩建工程一线船闸船模通航试验研究

Experimental study on ship model navigation of first ship lock of Jinweizhou hub expansion project in Xiangjiang River

为了设计出更为合理的船闸布置方案,对湘江近尾洲枢纽扩建工程一线船闸的原设计方案和修改方案的通航安全性进行试验研究。在水工模型的基础上,采用小尺度船模技术观察分析船舶在不同流量下的舵角、航速等通航参数。结果表明,修改方案布置比原设计方案布置更加合理,通航水流条件有所优化。在流量Q≤5210 m^(3)/s时,一线船闸上、下游航道的航行参数均没有超过相应限值,总体可满足1000 t自航货船(静水航速18 km/h)的通航要求。综合试验结果分析,建议一线船闸的最高限制通航流量为5210 m^(3)/s。

To design a more reasonable layout scheme of ship lock,we carry out the experimental research on the navigation safety of the original design scheme and the modified scheme of the first ship lock of the Jinweizhou hub expansion project in Xiangjiang River.Based on the hydraulic model test,we apply the small-scale ship model technology to observe and analyze navigation parameters,such as rudder angle and speed.The results show that the modified scheme layout is more reasonable than the original design scheme layout,and the navigable flow conditions are optimized.When Q≤5,210 m^(3)/s,the navigation parameters of the upstream and downstream channel of the first ship lock do not exceed the corresponding limits,which can generally meet the navigation requirements of 1,000 t self-propelled vessel(still water speed:18 km/h).From the comprehensive analysis of the study results,we suggest that the maximum restricted navigable flow of the first ship lock should be 5,210 m^(3)/s.