姜家梁隧道洞口段滑坡治理方案分析

Analysis of Treatment Scheme for Landslide at Jiangjialiang Tunnel Entrance

以姜家梁隧道洞口段滑坡为研究对象,在根据现场调查及地勘资料计算滑坡剩余下滑力的基础上,对两级抗滑桩和接长隧道明洞加抗滑桩两种治理方案进行了对比分析。结果表明:两种方案均能保证滑坡体稳定及隧道衬砌结构安全,但接长隧道明洞加抗滑桩的方案施工难度相对较小,施工人员更为安全,并节约工程造价。

Taking the landslide at Jiangjialiang tunnel entrance as the research object,based on the residual sliding force calculated as per site survey and geological exploration,the comparative analysis is made on two schemes： two-level anti-slide pile and lengthened open-cut tunnel with anti-slide pile. The results show that the two schemes can guarantee stability of the landslide and security of tunnel lining. But the scheme of lengthened open-cut tunnel with anti-slide pile is relatively easier,so the construction workers can be safer and the engineering cost is lower.