摘 要 本文概括了路基边坡的病害类型、原因和边坡的侵蚀机理,提出了边坡的防 护类型、特点及防护类型的选择原则。 关键词: 路基边坡 边坡病害 侵蚀机理 防护适用性 植物防护 防护区划综合防护设计 Abstract Stuedy on Side Slope Protection System of Expressway Abstract This paper analyses the types of side slope damages , reasons and principles of the damages.This paper also explain the types , characters and selecting principles of protection methods. Key words :Subgrade side slopeSide sl