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采取两步优化设计方法,通过分步分级的优化思路对扩建输水系统进行优化。首先,以管道建造费用为目标函数,以管道水力条件为约束条件,运用线性规划算法对长距离重力流输水系统的扩建进行优化计算,得出优化结果的可行范围。然后,以整个输水系统可靠度等为分析对象,在管道优化结果的可行范围内对系统扩建再次进行可靠性方面的研究,得出系统最优方案,并应用于工程实例。
A two-step optimization design method is adopted to optimize the expansion of water delivery system through step-by-step optimization. First, taking the pipeline construction cost as the objective function and the pipeline hydraulic conditions as constraints, the linear programming algorithm is used to optimize the expansion of the long-distance gravity flow water conveyance system, and the feasible range of the optimization result is obtained. Then, taking the reliability of the whole water delivery system as the analysis object, the reliability of the system expansion is studied again within the feasible range of the pipeline optimization results, and the optimal system solution is obtained and applied to the engineering examples.