棱锥体结构对弯道水流的改善与布置参数优化研究

Study on the Improvement and Layout Parameter Optimization of Bend Flows with Pyramidal Structure

河道的弯道段设置相应的护岸工程,可规避复杂横向水流对河岸稳定性产生的影响。文章通过模型试验,探讨了在河流弯道段设置棱锥体对改善流态的作用。结果显示,在弯道设置三棱锥体可提高水面均匀度和水面横比降,显著改善弯道流态,具有一定的工程应用价值,增加椎体的设置数量对改善水面流态更为有利。

The corresponding bank revetment projects are set in the bend section of the river in order to avoid the influence of complex transverse flows on the bank stability.The effect of setting pyramids in the river bend section on the flow pattern improvement is discussed through model tests in the paper.The results show that triangular pyramids are set in the bend to improve the water surface uniformity and transverse gradient,and significantly improve the flow regime of the bend.It has certain engineering application value.The increase of pyramids is more beneficial to improve the water surface flow regime.