Marmaray, shown as the project of the century, was flooded with visitors before it was put into practice. Especially 15 thousand people, including scientists and academics, made observations in the area where the historical project was realized. Marmaray officials, the main lines of the project completed the world's deepest immersed in the tube tunnel, noted.
It has come to an end in Marmaray, which is shown as the project of the century. It was announced that the project, which was first considered by Sultan Abdülmecit, will be completed in October 2013. With the project that will connect the two sides of the Bosphorus Halkalı and a modern and high capacity suburban railway system between Gebze and Gebze.
IT WILL BE 105 MINUTES BETWEEN GEBZE AND HALKALI
Railway lines on both sides of the Bosphorus will be interconnected by a railway tunnel connection that will pass under the Bosphorus. The line will go underground at Kazlıçeşme; It will move along the new underground stations Yenikapı and Sirkeci, pass under the Bosphorus and connect to another new underground station, Üsküdar, and rise to the surface again in Söğütlüçeşme. Gebze with the project - Halkalı between 105 minutes, Bostancı - Bakırköy between 37 minutes, Üsküdar - Sirkeci between 4 minutes.
THE MOST DEEP SCREENING TUBE OF THE WORLD
The most curious and interesting point of the project is the immersed tube tunnel built under the Bosphorus. The 1 km-long tunnel, for which approximately 1.4 million cubic meters of sand, gravel and rock is extracted, consists of 11 fragments. The pieces carefully placed in the ditch that opens to the seabed, combine at a depth of 60 meters. The project also has the title of the world's deepest immersed tube tunnel.
15 THOUSAND VISITORS TO MARMARAY
Responding to the questions of the UAV reporter about the work carried out in Marmaray, the project officials said that they already had an influx of visitors. Noting that the project has attracted great attention from scientific circles, academicians and students since 2004, the officials said, “We had nearly 15 thousand visitors. We had visitors from many countries, universities and non-governmental organizations. This is very important both for the promotion of the project and the promotion of our country ”.
Noting that Marmaray is one of the largest transportation infrastructure projects in the world, the officials said, “The entire improved and new railway system will be approximately 76 km long. The project, main structures and systems, immersed tube tunnels, bored tunnels, cut-and-cover tunnels, level structures, 3 new underground stations, 36 above ground stations, maintenance facilities, improvement of existing lines, including a new third line to be built above ground, completely new electrical and mechanical systems and
It will consist of 4 sections that will cover the modern railway vehicles to be procured ”.
29 WILL FINISH ON OCTOBER 2013
Authorities stated that the project reached the point where it can be exited from Kazlıçeşme when entering from Ayrılıkçeşme, “Now the tunnels are completely connected. Likewise, our station buildings near our entrance point are almost finished. Rails started to be laid. These are still in progress. Currently, rail welding has started. A date that our Prime Minister has mentioned, 29 October 2013, as of this date, we are trying to keep the system running in a train ”.
TUNNELS EARTHQUAKE RESISTANT
Stating that the project was designed to be resistant to an earthquake of magnitude 7,5, the company officials said:
“There are emergency exits every 200 meters. The fire safety of the system will be built inside the tunnel and station buildings. There is currently no air flow on the construction site. However, when the system is activated, air supply units will be added to the system. These will be providing enough air in the tunnel. "
TUBE TUNNEL 11 COMPONENTS
Reminding that the most interesting point of the project is the immersed tube tunnel, the officials said, “Especially in this tunnel group, it is actually a tube chain consisting of about 11 pieces. We placed it in the ditch we dug on the sea floor and combined it. The result was a 1,4 kilo meter long tunnel. We sunk a tube tunnel 60 meters below sea level. It is an important project in terms of being the first in the world. It is a source of great pride to be involved in such a project on behalf of myself ”.
Source: News
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