Silkyara-Barkot tunnel latest update: The rock classification ranges from poor to very good, says Nitin Gadkari
Union Minister of Road Transport & Highways Nitin Gadkari on Wednesday informed the Parliament that the rock classification of the Silkyara-Barkot tunnel alignment ranges from poor to very good.
In a written reply to a question in the Rajya Sabha, Gadkari said the rock classification as per the geological report submitted by the Detailed Project Report (DPR) consultant concerning Silkyara-Barkot tunnel alignment ranges from poor to very fair.
To overcome the problem of weak rocks during tunnel construction, additional support such as shotcrete, fore poling, rock bolts, steel ribs, lattice girder, etc.
