基于蓄水曲线的平原城市排涝模数计算方法及影响因素研究

Calculation method and influence factor of drainage modulus in plain city based on water storage curve

针对平原城市的排涝特点,提出了基于蓄水曲线法的平原城市排涝模数计算方法。以宿州市主城区为例,采用蓄水曲线法计算其排涝模数。结果表明:蓄水曲线法的结果比简化方法小。最后还得到了调蓄库容与河道断面面积和排涝面积之间的相关关系,可为城市建设和河道规划提供依据。

Aiming at the characteristics of drainage in the plain city,the paper put forward to the calculation method of drainage modulus in plain city based on water storage curve. Taking the main urban area of Suzhou as case study,it used the capacity curve method to calculate its drainage modulus. The result of water storage curve method is smaller than that of the simple method. It finally provided the relationships between water storage capacity and the area of cross- sectional and drainage. It can provide a basis for planning of city and channels.