Analysis Of The Interaction Between The Tunnel And The Yang Poli Slope Of Wuguan Road

At present, the landslide at home and abroad has made remarkable progress. Regardless of the landslide mechanism, forecasting and control measures, which have done much work and have achieved a lot. However, when the tunnel is built in the landslide, the problem which clearly different from the tunnel or landslide problems. Thus both landslides and the tunnel should be considered together. The interaction between the landslide and the tunnel has been one of the core issue of the landslide tunnel. But the research of interaction between landslide and the tunnel has fewer, and also the result of it is limited relatively.Before writing this paper, we collected and analyzed a large number of domestic and international data. Firstly, the excavation of landslide and the rainfall effects are the two main factors, which affected a lot to the deformation of landslide. Therefore, the paper analyzed the law of landslide’s deformation that the tunnel is in three different parts of the landslide, using the methods of model experiment and numerical calculation. After the completion of the tunnel excavation, it discussed the rainfall effects which affected the landslide’s displacement, the trends of deformation and Rock stress.Secondly, it analyzed the role of the tunnel structure which is affected by the landslide through the large scale model experiments. In the model test, it is important to obtain the pressure on the change in the strain distribution on the tunnel linner and tunnel surrounding rock after the implementation of the rainfall by the earth pressure cells and the static strain gauge.The model test and numerical results show that when the tunnel is in the middle of the landslide, the safety factor of the landslide is the smallest. And also, the part of much larger displacement appeared at the upper of tunnel and both sides of the tunnel. Rainfall affected the whole of the landslide. At the same time, the results of numerical calculation show that tunnel have the effect of drainage. The displacement of the regional above the tunnel is relative little, but the deformation at bottom of the sliding body is much large. In this process, the tunnel lining deformed, then it would be destroyed and much more complex.