摘要
通过动态分析有限元方法揭示了设置功能层的半刚性基层水泥混凝土路面结构在车辆动态荷载作用下各因素(面层厚度与模量、功能层厚度与模量、基层厚度与模量、地基模量以及行车速度)对力学响应的影响程度,采用灰色关联分析,对各因素的影响程度进行了定量分析,并通过回归分析得到了路面结构力学响应(面层弯沉差、面层底部拉应力、功能层顶部剪应力和基层底部拉应力)的计算公式,为设置功能层的水泥混凝土路面的结构设计和施工提供理论指导.
Through the finite element method,the effect of various factors（surface course thickness and modulus,functional course thickness and modulus,base thickness,soil modulus and running speed） of semi-rigid base cement concrete pavement structure with functional course under the vehicle dynamic load on the mechanical response was revealed.By using the grey relation analysis,the influence of various factors was given a quantitative analysis.Besides,the formula of the pavement structure mechanical response（surface deflection difference,tensile stress at the bottom of surface course,shear stress on the top of functional course and tensile stress at the bottom of base） were obtained by the regression analysis,which can provide theoretical direction for the structure design and construction of cement concrete with functional course.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2011年第6期13-17,共5页
Journal of Zhengzhou University（Engineering Science）
基金
国家自然科学基金资助项目(50978031)
长安大学基础研究主持计划专项基金(CHD2010ZY014)
关键词
水泥混凝土路面
层间功能层
动态荷载
半刚性基层
灰关联分析
cement concrete pavement
asphalt mixture function layer
dynamic vehicle load
semi-rigid base
grey incidence analysis
