行车荷载作用下沥青路面路基永久变形计算

Caculation of permanent deformation of subgrade of asphalt pavement under traffic loads

在常规路基永久变形分层应变总和预估法的基础上,考虑公路渠化交通,提出了综合考虑轮载横向分布频率的分条分层应变总和的计算方法,计算结果表明,考虑轮载横向分布频率的路基永久变形预估方法更符合实际情况。

Based on overall hierarchy stress estimation method of common permanent subgrade deformation,through considering the highway canalization traffic,the paper puts forward the calculation method of overall sub-item and hierarchy stress by comprehensively considering horizontal wheel load distribution frequency.The calculation results show that： permanent subgrade deformation estimation method by considering horizontal wheel load distribution frequency is in accordance with the actual conditions.