摘要
大砂沟洪道是兰州市北部片区的一条主要排洪沟道,流域面积、纵坡、流量较大。大砂沟的排洪安全直接影响着沟道两岸居民和企事业单位的安全。该文从洪水流量计算、堤顶高程确定、冲刷深度确定、堤防断面确定等几个方面进行了探讨,可供其他洪道治理参考。
Dashagou Spillway is a main spillway with the greater drainage area, longitudinal slope and flow in the north area of Lanzhou. The flood discharge safety of Dashagou directly influences the safety of the residents and enterprises at both sides of the spillway. The article discusses the flood flow calculation,embankment top elevation determination, scour depth determination and dike section determination, which can be referred for the regulating design of the similar spillways.
出处
《城市道桥与防洪》
2014年第8期179-180,195,共3页
Urban Roads Bridges & Flood Control
关键词
洪道整治
流量计算
冲刷计算
堤防设计
spillway regulating,flow calculation,scour calculation,dike design
