路基强夯在旧路改造中的应用

根据320国道江西境内大城一万载段一级公路改扩建工程实例介绍,针对旧路改造工程路基加宽部分新老路基结合不紧,从而产生新路基的滑移和沉降等问题,通过采用强夯技术,选择适当参数,处理路基新老结合部位,有效地消除了以上路基病害的发生,取得了良好的效果.

Application of subgrade treated by dynamic compaction in old road rebuilding

Based on the introduction of the reconstruction and extension projects of Dacheng-Wanzai section of No.320 national road in Jiangxi,the paper effectively eliminates the subgrade defects by using the dynamic compaction technology,the appropriate selection of the parameters and treating the copula between the old and new subgrades according to the problems that the sliding and the settlement of the new subgrade are produced because the old and new subgrades do not tightly connected in the widening parts of the subgrade of the old road rebuilding,which achieves the good results.