江苏苏南地区农村混合型圩区排涝流量计算方法研究

Research on calculation method of drainage dischargein rural mixed polder area in southern Jiangsu Province

江苏苏南地区农村地区普遍经济发达、人口稠密、田少人多。圩区规模小,圩内工矿企业及经济作物多,受淹损失大。较常使用的排涝模数计算方法如平均排除法得出的数据偏小,目前已经有一些学者提出了一些改进计算方法。以江阴市月城镇马甲圩为典型,采用圩内河道控制水位为主要指标,以一定频率暴雨为规划标准,通过产流、排水平衡原理的方法计算圩区排涝流量。

Rural areas in southern Jiangsu are generally economically developed,densely populated,with few fields and large numbers of people.The scale of polder area is small.There are many industrial and mining enterprises and cash crops in the polder,and the flooding losses are large.The drainage modulus calculated by commonly used calculation method such as the average elimination method was relatively small.At present,some scholars had proposed some improved calculation methods.Taking Majia polder area in Yuecheng Town of Jiangyin City as a typical case,using control water level of the river in the polder as the main indicator,taking a certain frequency of heavy rain as the planning standard,the drainage discharge of the polder was calculated by the principle of runoff generation and drainage balance.