闸门止水橡皮自激振动安全监测研究

• 作 者: 陈五一 刘礼华 林建锋 欧珠光 王蒂
• 机 构: 中国水电顾问集团成都勘测设计研究院,武汉大学土木建筑工程学院,福建省水利规划院,
• 出 处: 武汉大学学报(工学版)
• 发表日期: 2009年06期
• 关键词: gate water-stop rubber self-excited vibration safety monitoring

在水电工程中,漏水射流闸门止水橡皮经常会自激振动,为保障闸门结构的安全运行,建立了闸门振动两自由度模型,从理论上分析了该类闸门振动的原因与机理,并结合某一工程实例,现场对不同闸前水位下冲沙闸闸门的动力响应进行了监测,总结了该闸门振动位移、加速度和动应力响应的大小与变化规律,对闸门的安全性进行了评价.提出了避免闸门由于止水橡皮漏水射流而产生振动的工程措施,为今后同类工程问题的处理提供了理论参考依据.

In the hydropower project, the water leakage rubber gate seal often spontaneous vibration, in order to ensure the safe operation of the gate structure, the establishment of a gate two degrees of freedom vibration model, the theoretical analysis of the reasons for the gate vibration and mechanism, combined with In an engineering example, the dynamic response of sluice gates under different sluice gate levels was monitored in situ, the size and variation of vibration displacement, acceleration and dynamic stress response were summarized, and the safety of sluice gate was evaluated. The engineering measures to prevent the gate from vibrating due to the leakage of water-proof rubber jets are put forward, which provides a theoretical reference for the handling of similar engineering problems in the future.