摘要
基于沿水深方向积分的平面二维水流动量方程,在采用合理的假定条件下,推导出含渗漏因素的戗堤下游回流区长度计算公式。研究结果表明,戗堤下游回流区长度不仅与坝长、水深、糙率、河宽缩窄比等因素有关,而且与戗堤自身的渗流量有关,回流区长度与渗漏量成反比。
Based on 2D plane flow momentum equations along water depth direction integral and proper assumptions, the calculation formula for the length of backflow in the downstream of dike with seepage factor was derived. The research result showed that the length of backflow in the downstream of dike is not only related to dike length, water depth, roughness and river width contraction ratio but also is related to the seepage discharge of dike itself. The length of backflow is inversely proportional to the seepage discharge.
出处
《水力发电》
北大核心
2007年第9期89-90,共2页
Water Power
基金
教育部博士点基金资助项目(2006010039)
关键词
截流
双戗堤
渗漏量
回流长度
river closure
double-dike
seepage discharge
length of backflow
