丘陵地区高速公路路基设计要点

Expressway Subgrade Design Points in Hilly Areas

丘陵地区的高速公路路基形式多样,兼有平原区和山岭区的特点。依据丘陵地区某高速公路设计项目,结合以往类似项目经验,从边坡坡率、特殊路基处理、取弃土场、防护工程和排水工程五个方面,总结丘陵地区高速公路的路基设计要点,可为丘陵地区高速公路路基设计提供参考。

Highway subgrade types are various in hilly areas, having the features of plain areas and mountainous areas. Combining with one expressway design project, the expressway subgrade design points in hilly areas are summarized in the aspects of slope ratio, special subgrade disposal, soil field, prevention and protection engineering and drainage engineering on the basis of similar project experience. What＇s more, the subgrade design points are summarized. It can provide reference for expressway subgrade design in hilly areas.