Research on Construction Technology of Subgrade Dynamic Compaction in Collapsed Loess Area of Expressway
The subgrade engineering in collapsed loess area is faced with the problems of soil collapsible subsidence,deformation and stability,and the dynamic compaction construction technology has attracted much attention as an effective treatment method.Based on the case of the dynamic compaction construction project from the Taiyangshan Development Zone to Pengyang(Ning-Gan boundary)section of the Yinkun Expressway(G85),this paper analyzes the mechanical properties and moisture characteristics of collapsed loess,as well as subgrade engineering performance,and explores the effective ways to improve the stability and anti-collapsibility of the subgrade by combining the optimization of the dynamic compaction construction parameters and the improvement of the construction method.
expresswaycollapsed loesssubgradedynamic compaction construction technology
万方数据
维普
