证明采用低能量强夯加固软土是可行的，关键是要设置有效的排水系统。
It shows that the application of low-energy dynamic consolidation in soft ground stabilization is feasible and the key point is the placement of effective drainage system.
采用动力接触有限元法分析强夯中夯锤对地基土的冲击碰撞过程，建立动接触力与速度之间的接触关系式。
Uses dynamic contact FEM to analyze impact and collision of hammer to foundation soil in the dynamic compaction, establishes the contact relation between dynamic contact force and speed.
夯扩桩在成桩过程中会产生挤土效应。
Compacting effect is caused in forming process of ramming expanded piles.
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