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在软土地区修建高等级公路遇到的主要问题包括路基的沉降和稳定性,以及由于路基工后沉降和工后不均匀沉降过大造成的沥青路面早期损坏问题。过渡式路面能较好适应路基不均匀沉降未稳定的路况需要,但路面开裂现象在早期较为明显。通过分析不均匀沉降对路面带来的附加应力,结合现行规范的路面结构计算,提出不均匀沉降引起的附加应力在路面结构计算的计算方法。
Major problems encountered in the construction of highways in soft soil areas include the subsidence and stability of subgrade as well as the early damage of asphalt pavement caused by post-construction subsidence and uneven post-construction subsidence. Transitional pavement can better adapt to uneven subgrade settlement unsteady road conditions, but the phenomenon of pavement cracking in the early obvious. By analyzing the additional stress caused by uneven settlement on the pavement, combined with the calculation of the pavement structure of the current norms, the calculation method of additional stress caused by uneven settlement on the pavement structure calculation is proposed.