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建筑小区雨水利用是解决水资源短缺和城市内涝等问题的重要途径,分析了各类雨水利用设施的雨水利用强度及其基本规模。在满足外排径流系数不大于开发建设前的前提下,以年成本最小为目标函数,应用非线性规划建立了建筑小区雨水利用优化设计模型。以合肥市某小区为例,对其雨水利用进行了优化,结果表明,该模型能较好地对建筑小区的雨水利用进行优化,为建筑小区雨水的合理利用提供了依据。
Rainwater utilization in construction area is an important way to solve the problems of water shortage and urban waterlogging. The utilization intensity of rainwater and its basic scale of various types of rainwater utilization facilities are analyzed. Under the premise of meeting the requirement that efflux coefficient of outflow is not more than before development and construction, taking the annual cost as the objective function, the optimal design model of rainwater utilization in building plot is established by nonlinear programming. Taking a district in Hefei as an example, the rainwater utilization was optimized. The results show that the model can optimize the rainwater utilization in the construction area and provide the basis for the rational utilization of rainwater in the construction area.