笏洲船闸输水系统水力学模型试验研究

Experimental study on hydraulic characteristics for filling andemptying system of Huzhou ship lock

笏洲船闸平面尺寸大、瞬时流量大、输水强度高,闸室内无消能工,闸室停泊条件有待检验,引航道采用非对称布置,易形成回流、斜流等水力学问题。通过比尺1:30的整体水工物理模型试验,对船闸输水过程水力特性、输水廊道压力特性、船舶停泊条件、进出水口及引航道水流条件等展开研究。结果表明,在闸室及出水口增设消力槛并优化其布置形式后,闸室内停泊条件和下游引航道通航水流条件明显改善。在推荐的阀门运行方式下,各项水力指标均满足规范及设计要求。研究成果可为类似工程提供参考。

Huzhou ship lock has a large plane size,large instantaneous flow,high water delivery intensity,no energy dissipation workers in the lock chamber,berth conditions in the lock chamber to be tested,and asymmetric layout of the approach channel,which is prone to reflux,oblique flow and other hydraulic problems.Through the hydraulic physical model test with a scale of 130,the hydraulic characteristics of the water conveyance process of the lock,the pressure characteristics of the water conveyance gallery,the berth conditions of the ship,the flow conditions of the inlet and outlet and the approach channel are studied.The research results show that the berthing conditions in the lock chamber and the navigable flow conditions in the downstream approach channel are obviously improved after adding the sill and optimizing its layout.Under the recommended valve operation mode,all the hydraulic indexes meet the specifications and design requirements.The research results can provide reference for similar projects.