生态袋在黄土地区高速公路边坡防护中的应用

Application of Ecological Bags in Expressway Slope Protection in Loess Areas

针对吕梁某高速公路特殊的岩土条件及气候条件导致边坡土体不断溜滑的现状,及护面墙、混凝土喷防失效的问题,提出了采取生态袋护坡技术对高速公路边坡进行防护,并详细介绍了生态袋护坡方案的护坡机理、系统组成及施工工艺流程。由生态袋形成的新的护面结构能够稳固边坡、防止水土流失,同时为植物生长创造适宜环境,能够快速恢复植被、绿化边坡,美化环境。生态袋护坡方案加强了边坡的稳定性,适用于黄土地区公路边坡的生态防护。

Focusing on the situation of soil sliding and problems of failures of the facing wall and the concrete spray prevention on an expressway slope in Lüliang caused by the special rock,soil,and climate conditions,this paper suggested adopting the ecological bag technology to protect the expressway slopes.The slope protection mechanism,system composition,and construction process of the ecological bag scheme were introduced in detail.The new protection surface structure formed by ecological bags can stabilize the slope and prevent water and soil loss,and it also can create a suitable environment for plant growth,rapidly restore the vegetation,green the slope,and beautify the environment.The ecological bag scheme can strengthen the stability of the slope,which is suitable for the ecological protection of highway slopes in loess areas.