用线性规划求解工程混合料最优配料问题

公路工程混合料配合比设计是一门新的工程实用技术,它是在满足一定技术指标的前提下,以取得最大经济效益为目标来确定各种材料的最佳配方比例,从而提高工程质量并降低生产成本．它是工程建设中的一个重要环节,同时也是工程技术管理的一个重要网容．混合料配合比计算,常规方法有试算法和图解法,这两种方法主要通过手工完成,计算工作量大、出错率高、精度低,且都没有考虑生产成本问题,其计算结果虽然可以满足规范要求,但混合料总体成本却很少能达到最低。

The Using of Programming Solution in Optimal Mix Design in Highway Engineering

According to the real requirement of mix design in highway engineering,as well as considering the optimal economic problem,we build a mathematical model.The main solution steps using the tool of "Pro-gramming Solution"which is supported by Excel are introduced.Finally the estimation in technical and eco-nomic aspect about the result of the proposed model is analyzed.The main advantage is that we build a linear programming mathematical model which object function aims to obtain lower cost of mixture.The result is precise and can be obtained easily by using Excel,so the operator can have not the ability of programming.