农业机械学报2012，Vol.43Issue(z1)：311-313,338,4.DOI:10.6041/j.issn.1000-1298.2012.S0.063
压实对土壤应力分布的影响仿真分析
Simulation Analysis of Effect of Compaction on Soil Stress Distribution
摘要
Abstract
The process of wheel compacted soil was simulated by using DEM. The results showed that after the compaction, soil hardness of different depths increased and changed obviously with depth. With the frequency increased, soil particle' s contact force increased and longitudinal influence domain deepened. When wheel passed in the first three times, the increasing trend of soil' s hardness was obvious. When wheel passed more than three times, the soil' s hardness also increased. But the increasing was not obvious. When the layer deep was 15 cm, the hardness of compacted soil would increase by 155. 2% when compared with the soil without compaction, the soil compacted six times would only increase by 22. 9% when compared with the one compacted three times.关键词
土壤压实/硬度/应力分布/仿真Key words
Soil compaction/ Hardness/ Stress distribution/ Simulation分类
农业科技引用本文复制引用
赵振家,邹猛,薛龙,魏灿刚,李建桥..压实对土壤应力分布的影响仿真分析[J].农业机械学报,2012,43(z1):311-313,338,4.基金项目
高等学校博士学科点专项科研基金资助项目(20110061120050)、吉林省科技发展计划资助项目(201101024)、吉林大学基本科研业务费课题(Z201102)和工程仿生教育部重点实验室开放项目(K201206A) （20110061120050）
