阿尔及利亚东西高速公路有大量的挖方边坡位于泥灰岩地层,由于泥灰岩对水很敏感,遇水易软化,强度急剧降低,而且具有一定的膨胀性,因此阿尔及利亚已建和在建高速公路的挖方边坡出现了不少坡面冲刷拉槽和流泥破坏,也出现了少量滑坡。结合东西高速公路的设计施工情况,对泥灰岩边坡稳定分析方法、挖方边坡设计方案进行了论述,并在CCTP要求的防护方案基础上,提出了优化的边坡防护方案。 There are a lot of excavation slopes in the east-west highway in Algeria, which are located in the marl stratum. Because the marl is sensitive to water, it softens easily with water and drastically reduces strength, and has certain expansibility. Therefore, Algeria has built and built the expressway A lot of slope scouring trough and mud damage appeared, and a small amount of landslides appeared. Based on the design and construction of the East-West Expressway, the stability analysis method of slope and the design scheme of cut slope are discussed. Based on the CCTP required protection scheme, the optimized slope protection scheme is proposed.