两级优化模型在长距离引水管道管径优化设计中的应用

针对单一的数学模型不能很好解决管径优化的问题,在以往给水管网管径优化设计的基础上,采用线性规划和非线性规划相结合的两级优化模型对主干管很长,支管较短的引水管道的管径进行优化来寻求管网投资最小。结合南水北调中线某段工程实例进行分析,结果表明两级优化模型的应用能有效节约管网造价,对实践具有重要的指导意义。

Application of the Two-level Optimal Design Model for the Diameter Optimization of Long-distance Pipeline

Because diameter optimizing can not be solved by a single mathematical model perfectly,based on optimization of the water distribution network in the past,the two-level optimal design is adopted which combines the nonlinear programming model with linear programming model for the long-distance pipeline optimization which has long trunk pipe and short branch to find the smallest investment.A part of the South-to-North Water Transfer Project is analyzed.The results show that the application of the two-level op...