Abstract：The high slope geological disaster is easily happened, and it can block the transportation and delay the disaster relief in choke points of mountainside roads. Considering site condition, construction difficulty, tunnel safety, structure reliability, convenience and waterproof, the hangar tunnel scheme was applied in the section of LongshengZiyuan road line. The finite element analysis software was used to calculate the forces of hangar tunnel structure under different situations. The results show that the force of the main parts of hangar tunnel is in safety range. The structure design with high force is optimized to enhance the safety factor of hangar tunnel. After experiencing high slope disasters of landslides and falling rocks during the operation phase, no obvious diseases are found in the arched hangar tunnel structure, and the traffic on the section is not affected.
2018, Vol. 39 
