浅析公路长陡纵坡线形组合设计

Brief Analysis on Linear Combination Design of Long and Steep Longitudinal Slope of Highway

新颁布的《公路工程技术标准》(JTG B01-2014)取消了关于长陡纵坡中间设置缓和坡段的规定,这使得公路长陡纵坡设计更加灵活。从新旧《标准》的变化出发,设计不同的长陡纵坡线形组合方案,并对各个方案进行大货车运行速度计算,研究长陡纵坡线形组合设计。

The stipulation on setting up gentle slope segment in the middle of long and steep longitudinal slope is cancelled in the newly- issued Highway Engineering Standard Specifications（ JTG B01- 2014）,which makes the design of long and steep longitudinal slope of highway more flexible. Starting from the changes of new and old standards,linear combination schemes for different long and steep longitudinal slopes are designed,and truck travelling speed calculation is made for each scheme,so as to make research on the linear combination design of long and steep longitudinal slope.