NUMERICAL ANALYSIS OF INFLUENCE OF NEW THREE-HOLE TUNNEL CROSSING RAILWAY SUBGRADE
A practical engineering project is taken to explore the impact of three-hole tunnel crossing railway sub-grade.The numerical model has been established through three-dimensional finite element simulation calculation method.The results show that after adopting various reinforcement measures,the deformation of the railway sub-grade and track during the tunnel crossing is less than control standards,ensuring the safety of the new tunnel and existing railway subgrade,which may provide the reference for similar shallow buried tunnel crossing railway sub-grade engineering.