摘要
考虑土体动力滞回特性、颗粒的接触刚度及夯锤底面形状三种因素,使用颗粒流离散元数值计算方法分析了碎石土地基的动力夯实效果。分析了地基动力夯实数值模拟过程中上述三种因素对碎石土地基夯实效果产生的影响。探讨了以土体孔隙率变化为衡量标准的碎石土地基动力夯实数值模拟的可行性。
The particle flow distinct element method is used to analyze the effect of the dynamic compaction for a gravel soil foundation. The dynamic hysteretic damping, the contact stiffness of the particles and the sharp of the hammer for compaction are considered in the simulation of dynamic compaction. Based on the variation of the porosity of a gravel soil foundation, the feasibility of numerical simulation for the dynamic compaction process of a gravel soil foundation is discussed.
出处
《工程力学》
EI
CSCD
北大核心
2013年第B06期184-190,共7页
Engineering Mechanics
基金
水利部公益性行业科研专项基金项目(201201053-03)
中央财政支持地方高校发展专项资金特色重点学科项目(106-5X1205)
关键词
碎石土地基
动力夯实
颗粒流离散元
孔隙率
数值分析
gravel soil foundation
dynamic compaction
particle flow distinct element
porosity
numericalsimulation
