云桂线大菠萝黑1号隧道进口路堑工程滑坡整治设计

Landslide Prevention Design for at Entrance of Daboluohei No.1 Tunnel of Yun Gui Railway Line

文章针对云桂铁路现场工程滑坡问题,在分析研究该工程滑坡地形地貌特征的基础上,得出了滑坡形成的机制,明确了古老采空区导致工程滑坡的成因。滑坡整治针对该成因开展设计,采取大平台、缓边坡清方减载,采空区注浆、坡面框架锚索(杆)结合抗滑桩等综合措施确保滑坡长期稳定,可为同类工程提供借鉴和参考。

This paper aims at the landslide problem in the field engineering of Yun Gui railway,the landslide formation mechanism is obtained and the causes of engineering landslide in ancient goaf are clarified based on the study of the landslide topography and landform characteristics in this project.The protection measures such as wide platform,gentle slope,reducing earthwork and deloading,goaf grouting,anchored frame beam combined with anti-slide pile are adopted to ensure the secular stability of landslide,offers reference for the same kind of projects.