Tunnel 19 East, Tunnel 20 East and West, Tunnel 21 East Entrance to the Preventive Barrier against Risky Rock Masses
Risky Rock Masses Found at Tunnel 2019 East, Tunnel 261210 East and West, Tunnel 3.672.364,31 East Entrances with a limit value of 5.1 TL and an approximate cost of 58.933,92 19 TL, of the Turkish State Railways Administration YHT Regional Directorate (TCDD) with the 20/21 KIK number. 8 companies submitted bids for the Counter-Preventive Barrier Construction Work tender, and according to the unconfirmed result, PHİ YAPI İNŞAAT MÜHENDİSLİK SANAYİ VE TİC.LTD.ŞTİ. kazanIs Her.
The tender covers the construction of a Preventive Barrier against Risky Rock Masses at the 3 Tunnel Entrance. The duration of the work is 150 (one hundred and fifty) calendar days from the delivery of the place.