共用引航道船闸下游引航道的平面布置

随着货运量的增大,目前我国正大规模改扩建多线船闸,受枢纽已建建筑物和地形条件限制等多因素影响,新建多线船闸多与已建船闸并排布置,共用引航道。双线船闸共用引航道时,一线船闸充泄水将会影响到另一线船闸引航道水流条件,危及另一线过闸船舶安全及船闸结构安全。结合北江飞来峡船闸水力学模型试验成果,探讨同尺度船闸共用引航道的布置及其对通航水流的影响。结果表明:船闸在错开运行时,通过增大中间辅导墙的扩散角可使水流快速扩散,减小非泄水船闸引航道回流范围和回流强度,可通过优化主辅导墙及下游消能工形式,改善双线船闸引航道水流条件。

Approach channel arrangement of ship lock with sharing approach channel

With the rapid development of shipping industry,the multi-line ship lock is expanded in China,which is restricted by the established structure and the landform.Considering the management problem,the new multi-line ship lock is mostly arranged with the established ship lock side-by-side to share the approach channel.While,the filling or drain of a line ship lock would affect the flow condition of the other lock approach channel,which may affect the ship safety and the structure of ship lock at another line.Based on the hydraulic model study of Feilaixia ship lock at the Beijiang River,we carry out the investigation on the effect of navigation flow with sharing the approach channel of ship lock at same level.The results show that the flow can diffuse rapidly with increasing the diffusion angle of the intermediate counseling wall,and the range and strength of reflux decrease.The approach channel flow condition of multi-line ship lock with sharing the approach channel can be improved by optimizing the counseling wall and the energy dissipative shape.