摘要
利用有限元分析法,比较分析了粒料基层沥青路面和半刚性基层沥青路面的力学特性,计算了34种具有代表性的粒料基层路面结构的主应力,研究结果表明:粒料基层较半刚性基层会产生更大的路表弯沉;而半刚性基层层底拉应力比粒料基层大得多,同时得到粒料基层、底基层主应力分布规律及分布范围。
The paper compares mechanical properties of the granular base asphalt pavement and semi-rigid base asphalt pavement by finite element analysis method. Besides,the paper calculates 34 kinds of representative pavement structures with granular base. The result shows that the surface deflection of granular base is larger than that of semi-rigid base. But the tensile stress below the base layer of asphalt pavement with semirigid base is much larger than that of granular base. Meanwhile,the paper provides the principal law and principal range of granular base and granular subbase.
出处
《山西建筑》
2016年第4期135-138,共4页
Shanxi Architecture
基金
国家自然科学基金(项目编号:51478288)
关键词
粒料基层
力学特性
有限元
主应力
granular base
mechanical properties
finite element
principal stress
