The Eurasia Tunnel, which was put into service on December 20, 2016 in order to contribute to the urban transportation target in Istanbul, has saved approximately TL 1,2 billion this year.
The Eurasia Tunnel has been in service since 20 December 2016. As of January 31, 2017, 24-hour uninterrupted operation was initiated in the tunnel built under the build-operate-transfer model in partnership with Yapı Merkezi and SK E&C. The tunnel contributed to the goal of more balanced urban transportation by sharing the traffic loads of the Martyrs, Fatih Sultan Mehmet and Yavuz Sultan Selim bridges on July 15th in Istanbul, where intensive traffic occurred especially at peak hours on the east-west axis, and played an important role in the solution of traffic density. The Eurasia Tunnel not only contributed to exceeding the traffic density, but also provided significant savings. According to the calculation, 870 million pounds from the tunnel this year time, 295 million pounds of fuel, emissions of 31 million pounds, including a total of 1 billion 196 million pounds were saved.
About Eurasia Tunnel
The Eurasia tunnel or the Bosphorus Highway Tube Crossing Project is the highway tunnel that connects the Asian and European sides laid on the date 26 February 2011 to Kumkapı on the Kennedy Street and the D-100 Highway on the D-14,6 Highway, which connects to the strait from the bottom of the sea floor on the Runway route. The total route is 100 with tunnel and connection roads. It is aimed to reduce the travel time of 5 minutes to Kumkapı and Koşuyolu.
In order to provide an alternative road crossing with three bridges and a car ferry in the Bosphorus, the project is built 1,2 km south of Marmaray and the traffic between the three bridges and the car ferry is expected to provide a more balanced urban transportation to Istanbul. . It is the second submarine tunnel after the Marmaray tube passage in Istanbul. Although the toll of the tunnel is two-way; For 2017, it was ₺ 16,60 for cars and ₺ 24,90 for minibuses. For the name of the tunnel, government officials stated that it would be determined by public vote and asked to vote by 10 December at its official address. However, on 11 December, the authorities did not disclose the voting result on the site and did not share it on the grounds that the matter was distorted. The name was not changed and the tunnel was opened on December 20 under the name of ”Eurasia Tunnel aynı.
The Eurasia Tunnel Project (Istanbul Strait Road Tube Crossing Project) connects Asian and European sides with a road tunnel passing under the sea floor. The Avrasya Tunnel, which serves in Kazlıçeşme-Göztepe line where there is a heavy traffic in Istanbul, covers a total of 14,6 kilometers.
The 5,4 kilometer section of the project consists of a two-storey tunnel constructed with a special technology under the sea floor and connection tunnels constructed with other methods, while road expansion and improvement works were carried out on a total of 9,2 kilometers in Europe and Asia. The approach roads between Sarayburnu-Kazlıçeşme and Harem-Göztepe were expanded and intersections, car underpasses and pedestrian overpasses were built.
Tunnel passage and road improvement-expansion work, a holistic structure that relieves vehicle traffic. While the journey time in Istanbul is very heavy, the journey time is significantly reduced, and it is possible to experience the privilege of a safe and comfortable journey. It also contributes to the reduction of environmental and noise pollution.
Tunnel Features of Eurasia Tunnel
Tunnel excavation and 'Lightning Bayezid' called tunneling machine (TBM); 33,3 with 2 kW / m1 cutting head power. 12 with 2 bar design pressure. and 147,3 with cutting head area 2 m6. ranks.
The 'North Anatolian Fault', which has a high seismic activity, passes near the 17 km of the Eurasia Tunnel. The seismic joints (seismic joints / gaskets), which are designed to reduce the stress and displacement of seismic activities to an acceptable level, have been carefully determined in the tunnel. The displacement limits were ± 50 mm for shear and ± 75 mm for elongation / shortening. Seismic rings were tested in laboratories and produced after their conformity and success were proven. Given the geometric dimensions and the level of seismic activity to be exposed to the bracelets, the CPC was the 'first' practice with these features in the tunneling industry.
In the design of earthquake behavior, the moment magnitude Mw = 7,25 has been accepted; 500 's "service conditions" against the earthquake that can be seen once a year and 2.500 against the earthquake that can be seen once a year "security conditions" could act without distortion. In the design phase, the seismic bracelet positions were successfully determined and the 'cutting head' torque was continuously measured during the construction of the tunnel.
440 cutting disc, 85 chisel and 475 brush were changed during excavation of tunnel. During the excavation, due to the ever-changing geological conditions, 4 had to undergo hyperbaric maintenance and repair operations by 'specially trained divers' and all were completed successfully. One of these operations, which caused total 47 day time loss, came about to the deepest point of the Tunnel. As a result of the successful completion of this repair and maintenance operation which has to be done in an untested pressure environment like the 10,8 bar, a 'first' was carried out in the world and the excavation was continued.
Build-Operate-Transfer Model to Eurasia Tunnel
The Ministry of Transport, Maritime Affairs and Communications and the General Directorate of Infrastructure Investments (AYGM) are responsible for the design, construction and operation of the Eurasia Tunnel Project. ATAŞ appointed. With the completion of the operation period, the Eurasia Tunnel will be transferred to the public.