季冻区旧路改扩建路基加宽技术分析

Analysis of the Sub-grade Widening Techniques Used for Road Reconstruction and Extension in Sectional Frost Zone

对季冻区旧路改扩建工程路基拓宽中,容易出现破坏现象的成因进行了分析,重点结合了季冻区的已建或在建的改扩建工程的施工经验,对季冻区的路基拓宽的特殊性进行了技术分析。

This paper analyzed the reasons for the frequently occurring of road damaged phenomena in sub-grade widening for the used road reconstruction and extension project in sectional frost zone. It attempted to make technological analysis on the special features in sub-grade widening in sectional frost zone, combined with the construction experience in the finished or a on-goingbuilding road reconstruction and extension project in sectional frost zone.