Effect of Dynamic Compaction on Placement of High-Road Embankment

This case history presents an application of dynamic compaction in placement of a road embankment with a height of 41 m on the Yuncheng-Sanmenxia Expressway, Shanxi Province, China. The monitoring results during the compaction and the long period after compaction are analyzed and compared with those from compaction by rolling. It is obvious that dynamic compaction has such advantages as a high degree of compaction, a wide suitable range of placement water content (7–19%), and quick construction (over 4 m lift thickness) and can be applied in many high-fill engineering projects. In addition, application of a fabric-enclosed sand drain for treatment of an overwet soft foundation for a road embankment is also introduced.