波动理论在强夯加固机理研究中的应用

The Application of Wave Theory in the Mechanism of Subgrade Reinforcement by Dynamic Compaction

介绍了强夯法加固地基的几个主要作用 ,基于波动理论推导了土层中的波动方程和超静孔压微分方程并得到通解。研究表明 ,强夯产生的震动作用使得土体的孔隙水压呈波动上升 ,砂土层液化的难易取决于埋深与地面加速度。

This paper presents several main functions of dynamic compaction method. Based on wave theory, the wave equation and pore-water pressure coeffic ient equation are deduced. The research shown that the increasing rule of pore- wa ter pressure is wavelike and liquefaction of sand is determined by depth and gro und acceleration. By using the equation, we can find out the reinforced depth of different dynamic compaction energy.