长江感潮段闸站工程摩阻型拦船设施应用

Application friction type ship blocking facilities in the Yangtze River tidal zone sluice gate station project

为解决传统直线型拦船设施拦截能力弱,在遭受船舶撞击后易损坏、维修难,并且在水位变幅较大时,拦河钢绳的张紧度不好控制这一工程实际问题,以江苏泰州引江河高港闸站工程为例,对感潮段闸站工程摩阻型拦船设施进行了研究,并进行了相应的力学计算,介绍了保持拦船设施适应水位变化的张拉系统设计方案.计算结果表明:基于船舶撞击钢丝绳为平面直线运动及撞击点在钢绳中点的数学模型而设计的带张拉功能的摩阻型拦船设施是可行的.该设施能保证船舶撞击钢丝绳的情况下,对船舶实施渐进加力拦截,确保船舶与钢丝绳撞击后均无损伤,方便船舶自救及拦截设施功能恢复;吊锤式恒张力张拉系统能使拦船设施适应感潮河段水位变化,使钢丝绳始终处于良好的张紧待机状态.这对于保证感潮河段闸站工程口门过往船舶及闸站工程安全运行,具有一定的理论和实际意义.

The traditional linear type ship blocking facilities are not strong in respect of interception ability, and it is easy to damage but difficult to repair after suffering a ship collision. In addition, the tension degree of steel rope to intercept the river is difficult to control when the water level variation range is large. In order to solve the above practical engineering problems, the Gaogang sluice gate sta- tion of Taizhou Yinjiang Canal was used as an example to make study of the tidal river sluice gate sta- tion friction type ship blocking facilities, conducts the corresponding mechanics calculation, and intro- duces the design of tensioning device which can keep the ship blocking facilities adapt to the water le- vel changes. The calculation results show that the ship blocking facility with belt tension function is feasible, which is designed based on the model that the ship whose impact the wire rope is a plane hi- near motion and the impact point is at the midpoint of wire rope. The research achievements can guaran-