The topic under discussion has two aspects: (1) Construction of road tunnel, (2) its operation after completion of the job. It is understood that the present issue which is under examination pertains to Rohtang Pass Highway Tunnel in Himachal Pradesh whose executed diameter could be 11.5 metre, horse-shoe, or 10.0 metre diamter if done by tunnel boring machine. The tunnel starts at an elevation of 3055 metre and ends at an elevation of 3080 metre. The anticipated length of the tunnel is about 9.0 km and because of the difficult working condition at the exit of the tunnel, it may be worthwhile considering to bore the tunnel from one end. There are two alternatives: (1) Use of Drill & Blast Method, and (2) Use of Tunnel Boring Machine.
This is a premium article available exclusively for our subscribers.
If you are already a subscriber, please Login
If not, subscribe now and get access to well researched articles & reports on infrastructure construction, equipment & machinery, innovations & technology, project reports, case studies, and more. All this by simply paying just ₹200/- for a month of complete portal access, or a discounted rate of ₹1000/- for a full year of access.
