碎石化水泥混凝土路面加铺层结构研究与设计

Study and Design of Crushed-stone Cement Concrete Pavement Overlay Structure

该文采用有限元法建立了碎石化条件下混凝土路面二维平面应变模型,对标准轴载和超载条件下不同类型加铺层结构的力学响应进行了计算,分析了路面弯沉、层底拉应力、层底拉应变等指标,提出半刚性基层加碎石化沥青薄层结构的有关建议。

The article sets up the concrete pavement 2-dimensional plane strain model under the condition of crushed stone by the finite element method,calculates the mechanics response of the different overlay structures under the conditions of standard axial load and overload,analyzes the indexes of pavement deflection,bottom tension stress and bottom tension strain,and puts forward the suggestions related for the semi-rigid base plus crushed-stone asphalt overlap structure.