Based on the Sangzhang to Potou section in Taijiu Expressway,combined with the existing road indexes,the distribution and utilization of structures,influences of surrounding mined-out areas,river flood control,and distribution of villages and heritage,considering the driving safety and utilization rate of old roads,this paper designed multiple reconstruction and expansion schemes for a comprehensive comparison and demonstration,and rationally determined the final scheme.This paper has a certain guiding significance for selecting the reconstruction and expansion scheme of complex road sections in mountainous expressways.
关键词
山区高速公路/改扩建方案/旧路利用率
Key words
mountainous expressway/reconstruction and expansion scheme/utilization rate of old roads