强夯处理高填方的现场试验与数值分析

介绍重庆江北嘉陵江防洪护岸工程高填方的强夯加固现场试验,并采用有限元方法对强夯处理高填方的过程进行了数值模拟,数值分析与现场试验结果吻合较好.研究表明,高填方经过强夯处理后,土体发生了较大的沉降变形,密实度和承载力有较大幅度提高;采用有限元方法对高填方强夯加固处理进行数值分析是可行的,能够模拟高填方地基土在强夯冲击荷载作用下的弹塑性动力响应.

Site Test and Numerical Analysis of Dynamic Consolidation Method for High Earth Fill

A site test of dynamic consolidation for high earth fill of Chongqing Jiangbei Jialing River flood embankment engineering was introduced,and the process of dynamic consolidation was simulated by FEM.The numerical analysis results are basically consistent with those of site tests.It could be seen that a biggish settlement deformation was produced in soil by dynamic consolidation,and the consistency and bearing capacity of soil advanced to a great extent.At the same time,it indicates that numerical analysis for dynamic consolidation by FEM is feasible,and it could preferably simulate the elasto-plastic dynamic response of high earth fill rammed by impact load.