溪洛渡水电站泄洪洞事故闸门动水下门试验研究  

Experimental study on shutting of emergency gate for spillway tunnel at Xiluodu Hydropower Station under hydrodynamic condition

作　　者：张文远[1] 吴一红[1] 张东[1] 章晋雄[1] 

机构地区：[1]中国水利水电科学研究院水力学所,北京100038

出　　处：《水利水电技术》2007年第1期86-88,92,共4页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金委员会;二滩水电开发有限责任公司雅砻江水电开发联合研究(50539070)

摘　　要：溪洛渡水电站泄洪洞具有泄量大、流速高等特点,事故闸门动水下门过程中的水力学特性以及门体结构的动力性能直接关系到泄洪洞运行的技术可行性和安全可靠性。通过模型试验研究了事故闸门关闭过程中泄洪洞内的水流流态、门体的水动力荷载特性以及门槽段动水压力特性、通气孔风速,并根据试验结果分析了该闸门动水下门过程中的可靠性,通气孔风速特性和门槽段压力特性。The spillway tunnel at Xiluodu Hydropower Station has the characteristics of large discharge and high flow velocity, for which the hydraulic characteristics of the emergency gate and the dynamic properties of gate structure during shutting down under hydrodynamic condition are directly related to the technical feasibility and the safety reliability of the spillway tunnel op- eration. The flow regime inside of the tunnel, the characteristics of hydrodynamic load, the hydrodynamic pressure feature at the gate slot and the vent air speed during the shutting of the gate is studied through model test, and then the reliability of the gate, the feature of the vent air speed and the pressure at the gate slot during the shutting of the gate are analyzed based on the test result concerned.

关 键 词：事故闸门 持住力 脉动压力 泄洪洞 溪洛渡水电站 

分 类 号：TV134[水利工程—水力学及河流动力学]