湘西某高速公路滑坡分析与整治设计
Analysis of landslide of highway and treatment in western Hunan

湘西某新建高速公路通过一稳定古滑坡体,由于施工开挖导致边坡坡顶截水沟多处开裂、塌陷,地表出现纵向连续弧形裂缝,山体产生新的滑移可能;在对该滑坡进行详细勘察和滑坡失稳机制分析的基础上,利用勘察资料和参数反演分析结果,进行边坡稳定分析;最后决定采用预应力锚索桩相结合的方案进行综合整治;监测结果表明,该治理方案是稳妥可靠的。
A new-constructed highway in western Hunan went through an ancient landslide. Due to the slope excavation, cracking and subsidence appeared in intercepting drain on the top of slope and continuously curved longitudinal cracks appeared in surface, a new landslide might occur. Based on instability mechanism of slope, the stability of slope was analyzed by using survey results and the inversion parameters. Pre-stressed cables and piles were used to prevent the slide of the slope. The monitoring result indicates that this treatment is reliable and safe