Dynamic stability analysis of gravity retaining walls under impact compaction;

Researches on impact compaction test of rock-soil filled roadbed in high-grade highway;

Microstudy on roadbed loess improvement by impact compaction technology;

Discussion on investigation before application and decision of impacting compaction technique;

The quality of compaction for high-filling areas is studied by use of impacting compaction to improve particle-size distribution of broken stone,the compaction effect,and reduce deformation of high-filling.

Impacting compaction is a new method to strengthen soil mass.

This paper according to movement analysis of the impact compactor s active wheel and multi-objective optimization model for dynamical variable of it.

So scientific and accurate analysis and calculation on the requirement for traction force is necessary when the impact compactor is working.

It describes the classification,treatment principle,treatment method of the collapsible loess,and introduces the ballistic compaction method,weight strong punning method treating foundation according to the successful experiences of treating collapsible loess formation n the highway construction in loess area,which will supply reference to the collapsible loess formation design and construction.