高等级公路路堑边坡防护方法分植物防护和工程防护两大类。工程防护主要利用圬工砌体或混凝土形成一定的结构对路堑边坡进行处治,由于其取材方便,设计施工技术较成熟,处理深层失稳堑坡安全性高,故成为公路部门长期以来一直采用的防护方法,但该法造价较高,易破坏公路沿线自然景观及生态平衡。植物防护主要通过人工创造适合草(树)籽生长的环境后,再植播草(树)籽,利用草木对堑坡进行防护,在处理堑坡浅层失稳方面,因其造价低廉、美化环境、防止水土流失、降低噪音和粉尘污染的生态效应,在国外获得广泛应用,发达国家早已设有专门设计机构和专业研究人员,我国目前尚处于试验探索阶段。在公路开发的大潮中,生态环境保 High-grade road cutting slope protection methods of plant protection and engineering protection into two categories. Engineering protection mainly uses the masonry or concrete to form a certain structure to treat the cutting slope. Due to its convenient drawing, relatively mature design and construction technology and high safety for handling deep instability, it has been adopted by the highway department for a long time The method of protection, but the high cost of the law, easy to undermine the natural landscape along the highway and ecological balance. Plant protection mainly through the artificial creation of grass (tree) seed growth environment, then sowing grass (tree) seeds, the use of vegetation and wood cutting slope protection, in dealing with shallow slope instability, because of its low cost, landscaping Environment, prevention of soil and water loss, noise reduction and dust pollution reduction. It is widely used in foreign countries. Developed countries already have specialized design institutes and professional researchers already in the field of exploration and exploration. In the tide of highway development, ecological environment protection