某隧道进口段滑坡支挡防护方案研究

Research on the Protective Scheme of the Landslide in Tunnel Entrance

为有效消除某隧道进口段滑坡的危害,结合工程实际情况,在已有详细地质资料的前提下,选定最不利的滑移断面计算剩余下滑力并进行稳定性分析。结果表明,该段滑坡附近段处于欠稳定状态,需采取有效措施进行防治。通过进一步分析,决定滑坡综合治理方案主要为清方、挡墙和抗滑桩相结合的支挡方案,同时增设排水设施并进行坡面防护。

In order to eliminate the harm of the landslide in Tunnel entrance,combined with the actual situation of the project,the most detrimental sliding face is selected and the residual glide force is calculated to analyze the stability of the landslide.The results show that the slope is in understable state and it is imminent to take steps to handle the problem.Through further analysis,the treatment measures are taken,including unloading the slope,setting anti slide piles and retaining wall,designing drainage facilities and slope protection.