路面不同层间接触条件下基层及路床的力学响应有限元分析

Finite Element Analysis on Mechanical Response of Base Course and Roadbed under Different Interlayer Contact Conditions of Pavement

以某一典型路面结构类型为例建立了路面有限元模型,对不同路面结构层间粘结不良条件下的无机结合料稳定层层底拉应力、路床顶面竖向压应变的影响进行了分析。研究结果表明,路面结构层间的粘结性不良将对路面车辙问题、反射裂缝等问题造成极大影响,因此在日常施工过程中应注意加强路面结构层间的粘结处理。

Taking the structure type of a typical pavement as an example,the finite element model of pavement is established,and the influence of the tensile stress at the bottom of the stabilized layer of inorganic binder and the vertical compressive strain at the top of roadbed under the condition of poor adhesion between layers of different pavement structures is analyzed.The research results show that,the poor adhesion between layers of pavement structure will have a great impact on the rutting and reflection cracks of pavement.Therefore,attention should be paid to strengthen the bonding treatment between layers of pavement structure in the daily construction process.