中文摘要：

通过模型试验,研究了强夯夯击产生的夯坑中心点下的竖向位移和竖向应变沿深度的分布规律;基于强夯地基夯后效果的实测结果和Lukas加固效果假设,提出了夯后地面以下竖向应变沿深度分布的假设模式,用实测资料拟合了相关参数;根据一维变形条件下竖向应变与夯后有关土性指标的关系,提出了相对均质地基夯后地基内部不同深度处的孔隙比、相对密度及粘性土前期固结压力等部分土性指标的估算方法;用工程实例对方法进行了验证。结果表明,文中提出的方法有较好的实用性。

英文摘要：

Distribution of vertical displacement and vertical strain under the center of tamped points and the ground of dynamic compaction are investigated via model test results of sandy and clayey ground respectively,and the relevant parameters are obtained. The calculated formulas of soil properties,including void ratio,relative density and preconsolidation pressure,under homogeneous condition,are derived based on the relationship of vertical strain in one-dimensional deformation condition and soil properties. The practicability of the proposed methods is verified by case studies.