Abstract: To the thing that the No．grades and designs and optimizes with the ore query mixture，Can establish corresponding mathematics model to diferent requests that are designed and optimizing，the treating method will be designed and optimize organic combination，wm regard designing requirement as the condition of restraining，regard optimizing as the goal，designand optimize finishing in the lump．This law Can be used in the grading and is designed of all kinds of ore mixture，the asking of and the relevant model among them also have ripe calculation means or procedure that can be utilized respectively to solve，it is very convenient and suitable．

Key words: mixture is graded, standard is graded, linear progranmming, nonlinear programming, optimization design

摘要： 对于路用矿质混合料级配设计及其优化，可针对设计及其优化的不同要求创建相应的数学模型，处理办法是将设计与优化有机的结合在一起，以设计要求作为约束条件，以优化为目标，设计与优化一并完成．该法可用于各类矿质混合料的级配设计，且其中相关模型的求解亦分别有成熟的计算手段或程序可资利用，非常方便和适用．

关键词: 混合料级配, 标准级配, 线性规划, 非线性规划, 优化设计