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north east frontier railway (tunnel 21-22)

north east frontier railway (tunnel 21-22)

Scope of Work :

Scope of Work : Construction of Single Line BG Tunnel no. 21 ( App. Length 630 RM ) at Km. 39.507 to Km. 40.137 & Tunnel No. 22 (App.Length 178 RM ) at Km. 42.75 to Km. 42.930 in between Station Mualkhang & Sairang in connection with construction of New Railway Line Project Bhairabi – Sairang (Mizoram) of NF Railway (Construction)

Salient Features

Method of Tunneling : NATM
Length of Tunnel : 630 Meters & 204 Meters
Underground Excavation : 56,500 Cum (App.)
Open Excavation : 537000 Cum (App.)
Underground Shotcrete : 10,450 Cum (App.)
Underground Concrete : 13,100 Cum (App.)
Steel : 2612.00 MT (App.)

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