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随着经济的快速发展,目前,我国高速公路已经进入了一个改扩建高峰期,但有关改扩建工程的相应技术规范尚不完善,有些技术性问题还需要不断的创新。在国内公路路面结构设计中,同一条公路由于两个方向车辆载重不同,出现过左右幅(上下行)不同的路面结构厚度,但同幅(同方向)路面结构按不同厚度来进行设计还是第一次。本文依托京珠国道主干线安阳至新乡段改扩建工程,对高速公路改扩建项目中路面设计原则的合理确定进行详细分析论述。
With the rapid economic development, at present, China’s expressway has entered a period of renovation and expansion. However, the relevant technical specifications for the expansion and expansion project are still not perfect, and some technical problems still require constant innovation. In the design of domestic highway pavement structure, the thickness of pavement structure with different widths (up and down) appears on the same road due to the difference of vehicle loads in two directions. However, the same (same direction) pavement structure is designed according to different thickness once. Based on the reconstruction and expansion project of Anyang-Xinxiang section of the main road of Beijing-Zhuhai National Highway, this paper analyzes and discusses in detail the reasonable determination of the design principles of pavement in the expressway reconstruction project.