On exploration for some points in tunnel design of passenger special line

Taking some double-line railway passenger special line as the example,the paper sums up some points for the design of tunnel along the passenger special lines,and explores from the section contour,the structural forms of tunnel holes,the lining structure,the supporting forms,the waterproof and drainage,construction methods and the advanced geological forecasting,so as to ensure the reasonable tunnel design and the safe transportation for vehicles.