城市供水规划中人均综合用水量指标的确定方法

Determination of Per Capita Comprehensive Water Consumption Index in Urban Water Supply Plan

在城市供水规划中,用水量指标值的合理制定是预测用水量的关键步骤。根据同一城市人均综合用水量与生活用水量之间相对稳定的比例关系,得出了城市用水量指标的预测公式;该公式中的系数由城市多年的用水规律得出,而且还可根据城市发展进程和规划目标的变化作出及时调整。采用该方法对南方某城市新一轮规划的城市人均综合用水量指标进行了预测,其结果与目前居住小区规划中使用的数据相吻合,说明这一方法是比较合理的。

Water consumption index is a key to predict water consumption in the urban water supply plan. According to the relatively stable proportion relationship between per capita comprehensive water consumption and domestic water consumption in the same city, a formula of predicting the urban water consumption index was obtained. The coefficient used in the formula was derived from the multi-year urban water consumption rule and could be adjusted in time according to the urban development and the plan target variation. The formula was used to predict the per capita comprehensive water consumption index in the new plan of a south city. The result is identical with the data used in the present residential area plan, which shows that this method is relatively reasonable.