On the standards and methods of improvement for liquefaction ground in expressway engineering

Based on a large amount of field tests,this paper presents the standards and methods of improvement for liquefaction ground in expressway engineering.The dynamic compaction and the cast in situ gravel piles were successfully used and many new results are put forward.The results also show that the SASW method has many advantages in detecting the effect of large scale soil stabilization and can be widely applied in expressway engineering.