摘要
根据城镇小流域的特点,本文提出了用城市化指标β值,计算径流系数ψ和坡面汇流时τ的方法,并建立起一套较完整的适用于城市小流域洪峰流量的计算公式,即普遍公式和简化公式。通过实测资料验证,该计算方法和公式是合理可行的。
Arrcording to the characters of urban basin, this paper offersthe methods of calculating runoff coefficient ψand slope concentration time τ, with the help of urbanization index β,and stablishes two types of the formulas which are suitable to calculating the flood peak flow of urban basin, that is, general formula and simple formula. The calculation methods and formulas are wookable through the verification of tne example.
关键词
城市小流域
洪峰
汇流
urbanbasin
flood peak
concentration
