考虑融沉的冻土地区沥青路面结构设计

地基融沉是造成冻土地区路面病害的主要原因之一,在路面设计当中需要对此进行有效考虑。在对冻土地区路面破坏模式分析的基础之上,采用力学方法和数学方法对诱发常见路面病害的冻土融沉规律进行研究,对冻土温度场与环境温度变化的相关性规律以及不同融沉条件下路面结构内部的应力应变场进行研究,并通过大量的分析计算以及实地观测,提出了考虑融沉的路面设计方法和流程。该方法能够使路面设计时有效考虑未来融沉可能对基层、面层等不同层位产生的附加应力,从而使得在路面结构设计初期能够更加有效地考虑冻土融沉的影响。

Design Method of Asphalt Pavement in Permafrost Regions Considering Thaw Settlement

Thaw settlement is the main reason of the distresses of asphalt pavement in permafrost regions,which should be considered during the pavement design.On the basis of the analysis on the destruction mode of pavement in permafrost regions,mechanics and mathematics methods are used to analyze the discipline of pavement distresses due to thaw settlement,and the stress field in pavement structure is studied.Meanwhile the method and procedure of pavement design considering thaw settlement is put forward through ob...