通梅一级公路地质不良地段路基基底的处理

Treatment of Poor Subgrade of TONGMEI First Class Highway

通梅一级公路旧路加宽多，不良土质地段多。根据此特点，该路在对软土地基的处理上．根据其物理力学性质、埋层深度、路堤高度、材料条件等因素，采取了换填、直接填筑垫层及抛石挤淤、超载预压、反压护道的处理方案，收到了较好的效果。

Considering the characteristic of TongMei first class highway, with many widen road sections and poor subgrade sections. Based on the physical and mechanical property, embedded depth, depth of fill and material behaviors, author puts forward his proposal, some treatments such as replacement method, riprap and spoil disposal, preloading method are applied. The results show that the proposed methods are practicable and valuable for constructor and designer.