Study on treatment of loess subgrade disease by cement mixing pile

Affected by the difference of geological conditions, cause settlement road subgrade is different, and concealment disease strong. If it not timely maintenance, will further development disease. A finite element model established to study control technology using cement mixing pile for collapsible loess. The results showed that when loess relatively shallow penetrates loess, post-construction foundation are small, which can be controlled within limits specification. content should selected according different regions, moisture other indicators. For with particularly high organic matter content, construction determined indoor on-site test pile.