龙滩第二级升船机船舶出厢过程水力特性综合研究

Comprehensive research on hydraulic characteristics of second stage ship lift of Longtan

龙滩水电站通航建筑物为两级带中间渠道的垂直升船机,设计船型为1000吨级机动驳。通过物理模型试验的方法,进行船舶出龙滩第二级升船机船厢的试验,研究船舶出厢过程中船厢内水面波动、船舶下沉量、对接锁定机构荷载等水力特性。研究结果表明:从升船机对接安全和船舶航行安全角度出发,为满足最大吃水为2.4 m的1000吨级船舶过机,船厢设计水深3.5 m,船舶出厢航速应≤0.7 m s。

The navigable building of Longtan hydropower station is a two-stage vertical ship lift with an intermediate channel,and the designed ship type is a 1000 t-class mobile barge.By the method of physical model test,the experiment of ship out of the Longtan second stage ship lift chamber is carried out to study the hydraulic characteristics such as the water surface fluctuation in the chamber,the ship squat,and the force of the docking locking mechanism.The results indicate that from the perspective of ship lift docking safety and ship navigation safety,in order to meet the requirements of 1000 t-class ship passing through the ship lift with a maximum draft of 2.4 m,the ship's speed out of the chamber should be lower than or equal to 0.7 m s when the ship chamber design water depth is 3.5 m.