摘要
采用有限元方法并引入库仑摩擦模型以及温度场模型,对水泥稳定碎石基层内干温缩应力分布和收缩开裂间距进行了分析,研究了失水率、温差、基层模量、是否加铺面层等主要因素的影响,并回归得到了水泥稳定碎石基层收缩开裂间距的预估模型。
Shrinkage stress and cracking spacing are studied using finite element method in combination of Coulomb friction model and temperature field model based on the results of strength and shrinkage tests. The sensitivity analysis of water losing rate, temperature difference, base modulus and surface state are conducted. The prediction models of shrinkage cracking spacing for cement stabilized macadam base are developed by regression analysis.
出处
《公路》
北大核心
2014年第2期102-106,共5页
Highway
基金
留学人员科技活动项目择优资助经费
项目编号013050172
南京林业大学高层次留学回国人员和引进高层次人才科研基金项目
项目编号163050075
关键词
水泥稳定碎石基层
收缩开裂间距
有限元方法
基层模量
cement stabilized macadam base
shrinkage cracking spacing
finite element method
base modulus
