西南公路设计概要——以广西北海地区地区为例

Southwest Highway Design Summary——Taking Beihai Region in Guangxi as an Example

西南地区交通线路密度低,地形地貌、气象特征显著。以广西北海地区为例,论述了西南地区交通路线设计要点,路基路面、排水防护设计概要,提出了路面材料要求,引进了生态防护理念。桥涵工程设计、隧道工程设计、交叉工程设计均结合地理环境,经济安全,运营后养护维修方便与否等因素综合考虑。

Low traffic line is low density in the Southwest,and topography,weather characteristics is significant.Taking Beihai region in Guangxi as an example,the paper deals with the design points of traffic route in the Southwest,summarys of protection design of subgrade and pavement,drainage,raiseds pavement material requirements,introduces the eco-protection concept.Engineering design,tunnel design of bridge-culvert,cross design are combined with the geographical,economic security,operation and maintenance after comprehensive consideration of factors such as convenient or not.