(1. School of Civil Engineering，Southwest Jiaotong University，Chengdu，Sichuan 610031，China；2. China Construction Underground Space Co.，Ltd.，Chengdu，Sichuan 610081，China)
Abstract：The self-anchored strengthening structure was put forward to solve the reinforcement issue of tunnels located in the deep landslide，in this paper，stress and deformation of the entire reinforcing structure under the interaction of landslide soil were studied. A physical and mechanical calculation model was established and the matrix transfer method was adopted to establish the calculation formulas of internal force and deformation. The internal force and displacement distribution characteristics of the reinforced structure were obtained by MTLAB programming calculation. Numerical simulation calculation and model test were carried out to verify the theoretical results. The results indicate that：(1) The anti-slide sustaining pile and anchor can control the displacement of the tunnel well and improve the stress state of the tunnel；(2) In the design， the angle between the anchor cable and horizontal plane should be minimized，and the design anchor force values in the scope of the landslide boundary should be increased；(3) The internal force and deformation results of numerical simulation calculation and physical model test are in good agreement with the theoretical calculation results，which verify the correctness of the theoretical calculation method.
曲学兵. 任胡岭隧道进口山体滑坡的治理[J]. 岩土工程界，2003，6(10)：62-64.(QU Xuebing. Control of hill landslides at the inlet of the Renhuling tunnel[J]. Geotechnical Engineering World，2003，6(10)：62-64.(in Chinese))
2016, Vol. 35 
