【作者】 陆彦；

【导师】 严忠民；

【作者基本信息】 河海大学 ， 水力学及河流动力学， 2002， 硕士

【摘要】 作为船坞闸的工作闸门和水工建筑物的检修闸门在静水中使用，浮箱门已被证明是排干船坞、渠道、水电站进水口建筑物水的一种最经济有效方法。但作为控制闸在动水中使用的浮箱门，国内外均鲜见。浮箱门在动水中运行时，由于门体和水流的耦合作用和边界条件的影响，其受力情况极其复杂，研究手段以物理模型试验为主。 本文结合常州新闸防洪控制工程水工模型试验，系统分析了浮箱门在静水和动水中的稳定性及其影响因素，指出静水稳性和动水稳性的不同特点；试验测定了浮箱门动水运行时的受力情况，给出并分析了定位过程转动力的变化过程曲线；根据浮箱门启闭速度与门体和岸墙之间撞击力大小的关系，选择合理的动力设备，为设计和工程实践提供可靠依据；分析浮箱门难以稳定上浮的原因，并给出解决方案。更多还原

【Abstract】 As dock gate and emergency gate using in standing water,the floating bulkhead has proven to be an effective method for dewatering intakes at dams,dock basin,canals,and hydro plants. But using a floating bulkhead as a door of checkgate is a new concept. Because of the complex boundary condition and the fluid-structure interaction,model testing is a very important method of researching in this field.By hydraulic modeling,this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water,and it’s hydrodynamic stability characteristics that distinguish in standing water from in flowing water;And direct measurements of the forces acting on the model floating body during floating and sinking is taken. As a result,the rotation stress curves are produced and analyzed;To provide data for optimum operation schedule analyses of the sluice,the relationship of the impact forces acting on the side wall of the gate and the running speed is studied;The reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper.更多还原