龙长高速公路A9合同段K45+441～+620段左侧高边坡,自2005年4月开挖路堑以来,由于其坡体结构复杂、地质条件较差、地下水发育及多次台风暴雨的作用和影响,先后发生了多处坡面坍塌、坡体滑动变形。文章介绍了该边坡的变形历史以及采用的防护加固对策,指出了高边坡应专门分析、动态设计并合理施工,以达到安全经济的效果。 Due to the complicated slope structure, poor geological conditions, groundwater development and multiple typhoon rainstorms, since the left side slope of K45 + 441 ~ +620 section of A9 contract section of Longchang Expressway has been excavated, Effect and impact, there have been multiple slope collapse, slope sliding deformation. This article introduces the deformation history of the slope and the countermeasures of protection and reinforcement. It is pointed out that the high slope should be specially analyzed, dynamically designed and constructed reasonably in order to achieve the effect of safety and economy.