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低水头水闸下游消能属于低弗劳德数水跃消能,容易发生波状水跃、消能不充分等消能问题,尤其在海潮影响下,水位变幅大,消能问题更加突出。为此,结合晋江滨海新区填海造地工程~#1水闸模型试验,针对原设计一级消力池容易形成波状水跃和消能率低的问题,提出了二级消力池的消能结构,并对消力池池长、池深、尾坎高程和辅助消能措施进行了综合优化。结果表明,优化后的二级消力池消能结构,改善了水流流态,提高了消能率,研究结果可为类似工程借鉴参考。
The energy dissipated downstream of the low head sluice belongs to the low Froude number, and is prone to dissipate energy such as wavy jerk and insufficient energy dissipation. Especially under the influence of the tide, the water level fluctuates greatly and the energy dissipation problem becomes more prominent. Therefore, combining with the model test of # 1 sluice of reclamation in Jinjiang Binhai New Area, aiming at the problem that wave-shaped water jump and low energy-dissipating rate easily occur in the first-level stilling pool, the energy dissipation structure of the second- And the pool pool length, pond depth, tail ridge elevation and auxiliary energy dissipation measures were comprehensively optimized. The results show that the energy dissipation structure of the optimized two-stage stilling pool can improve the flow pattern and improve the energy dissipation rate. The research results can be used as a reference for similar projects.