旧路路面加铺设计研究

Pavement Design of Old Roads

连霍国家高速公路郑州至洛阳段是国家规划的7918高速公路网中主干线的重要路段,是承受国家东西运输的公路大动脉,经过十多年的使用,由于交通流量的持续上升,大吨位、大流量连续荷载的作用,造成老路出现了不同程度的病害,养护任务日渐繁重,路面已临近大修。根据检测报告建立路面有效厚度模型,确定旧路面的有效厚度部分,从而根据面层设计厚度来确定铣刨加铺厚度,并对加铺后的路面进行交通量分析。

The section from Zhengzhou to Luoyang of Lian-huo National Expressway is an important part of the mainline of the 7918 national expressway network and is also the main artery of the transportation from the east to the west. After over ten years, heavy traffic and continuous large-tonnage traffic flow caused damages of various degrees, with the road surface needing general maintenance. The effective thickness of the old road surface is determined according to the model of effective thickness based on the testing reports, the thickness of pavement needing milling is determined according to the designed thickness and traffic analysis is carried out after the pavement.