结合陕西省洛南至商洛高速公路柔性石笼挡土墙治理膨胀土路堑边坡塌方工程实例,分析了膨胀土路堑边坡破坏过程、土体特点、稳定性、塌方原因等,介绍了应用柔性石笼挡土墙防治膨胀土路堑边坡塌方的设计原理、施工要求、材料设备及施工质量控制,供以后类似工程参考。 Combining with the soft gabion retaining wall of Linnan-Shangluo expressway in Shaanxi Province, the paper deals with the example of collapse treatment of expansive soil cutting slope and analyzes the process of expansive soil cutting slope destruction, soil characteristics, stability and causes of landslide. The design principles, construction requirements, material and equipment, and construction quality control of the gabion retaining wall to prevent the collapse of the expansive soils are provided for the reference of similar projects later.