改进的HSA算法在水利工程项目工期—成本优化中的应用研究

Application of HSA in Duration-cost Optimization of Water Conservancy Projects

为解决工期-成本综合优化问题,对和声搜索算法(Harmony search algorithm,HSA)的参数取值范围进行改进。首先分析了水利工程项目工期与成本估算的影响因素,构建了工期-成本集成管理模型,然后构建BIM模型提取工程量信息,同时对HSA的主要参数记忆库取值概率HMCR与和声微调概率PAR作了改进,使其参数范围更加适应工期—成本模型的取值,整个运行过程耗时短,精度高,模型经过改进后更易于实现运算,并借助MATLAB得到了工期-成本最优解。最后,以某水闸项目为例进行验证,为水利工程项目工期-成本优化探索了新的模式。

To solve the comprehensive optimization of duration-cost,the parameter range of Harmony Search Algorithm(HSA)is improved.Firstly,the influencing factors of construction period and cost estimation of water conservancy projects are analyzed,and the integrated management model of duration-cost is established.The BIM model to extract engineering quantity information is proposed.At the same time,the value probability HMCR of HSA s main parameter memory bank and the harmony fine-tuning probability PAR are improved,so that the parameter range is more suitable for the value of duration-cost model,and the whole operation process is short in time and high in precision.After the improvement,the model is easier to realize the calculation.The optimal solution of duration-cost is obtained with the help of MATLAB.Finally,a sluice project is taken as an example to verify,which provides a new idea on duration-cost optimization for water conservancy project.