丁坝受力试验研究  

Distribution disciplinarian of pressure in spur dike

作　　者：路鼎 王平义[1,2] 刘怀汉 喻涛[1,2] 

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]重庆交通大学水利水运工程教育部重点实验室,重庆400074 [3]长江航道局,湖北武汉430014

出　　处：《水运工程》2014年第6期85-89,共5页Port & Waterway Engineering

基　　金：国家自然科学基金(51079165);交通运输部"黄金水道通过能力提升技术"重大专项(201132800050);西部交通建设科技项目(2009328814012)

摘　　要：通过水槽模型试验,测得不同工况下丁坝坝体动水压力和脉动压力的分布情况,并绘制出动水压力和脉动压力的分布图,得到不同水深、流量及坝长情况下动水压力和脉动压力的分布规律,并通过理论分析找到其原因。最终得出迎水面动水压力随水深、流量和坝长的增加而增加,脉动压力随着水深增加而减小、随着流量和坝长增加而增加等结论。Based on the model test, we measure the dynamic water pressure and fluctuating pressure of spur dikes under different working conditions, and draw the contour maps and scatter plots of water pressure and fluctuating pressure, through which, we get the distribution law of the dynamic water pressure and fluctuating pressure under different water depth, flow and length of dike, and find out the reason for it according to the theoretical analysis. The conclusion is drawn that the dynamic water pressure increases with water depth, flow and length of dike, and the fluctuating pressure decreases with water depth and increases with flow and length of dike.

关 键 词：丁坝 动水压力 脉动压力 

分 类 号：TV142[水利工程—水力学及河流动力学]