Indian Standards for Tunnel Cross Section

One of the most debatable stages of a tunnel project is of fixing the tunnel profile and cross section. The cross section of a tunnel primarily depends on the purpose and demand of the project. However, the decision upon the same will take the most amount of time and will have a colossal effect on Excavation Quantity, Tunnel Supports, Electrical & Mechanical systems, and most importantly, on the Total Cost of the project. Here are some of the guidelines and their comparison for fixing the cross section. This article is written by Er. Midhun C K, Design Engineer, FGS Engineers & Innovators.