新疆土石混合料最大干密度确定方法研究

最大干密度是反映路基压实质量的标杆。因土石混合料的不均匀性，传统方法测得的最大干密度离散性大，难以真实反映路基压实状况。土石混合料最大干密度的确定需要解决两个问题：1）超粒径颗粒室内最大干密度的处理方法问题；2）因材料变异性产生的现场标准干密度修正问题。本文针对这两个问题进行分析和研究，提出适合新疆地区土石混合料最大干密度的确定方法，供其他工程参考。

Research on the Method for Determining the Maximum Dry Density of Earth - rock Mixture

The maximum dry density is the compacted standard of subgrade .And it is discrete in earth-rock mixture subgrade for the unevenness of material and the unmatched text method .There are two problems that need to be solved in getting maximum dry density of earth -rock mixture .One is how to deal with maximum dry density test of oversized earth -rock mixture in the laboratory .And the other that results in material variation is how to correct dry density on the spot .The paper studied the two problems and put forward a method to get maximum dry density which is suitable for Xinjiang region , and for other projects＇reference .