冲击压实技术处理高速公路湿陷性地基的应用研究

基于冲击压实技术在某高速公路工程中处理湿陷性地基的应用实践，对地基的湿陷性、干密度、孔隙比、压缩模量、影响深度以及路基的沉降变形进行了系统研究。研究表明，冲击压实技术用于湿陷性地区的路基施工不仅明显改善了地基的质量，同时对减小路基的工后沉降也有明显的效果。

APPLICATION OF IMPACT COMPACTION TECHNOLOGY IN HIGHWAY EMBANKMENT OF COLLAPSIABLE LOESS SOILS

Based on a case of a highway embankment on collapsible loess ground,an impact compaction technology for collapsible loess ground is developed. During the process of compaction,the elastic modulus, compaction degree,collapsibility,settlement and other parameters of the soil are measured and the depth of impact compaction is comprehensively studied. The results of experiment indicate that the elastic modulus and compaction degree increase and the collapsibility and settlement decrease with impact compaction,and impact compaction is effective in improving the quality of embankment and reducing the settlement after construction.