Marmaray and Bridges, Resistant to Marmara Sea Centered Earthquakes

marmaray and bridges are resistant to earthquakes based on marmara sea
marmaray and bridges are resistant to earthquakes based on marmara sea

Turhan, 15 July Martyrs and Fatih Sultan Mehmet bridges pointed out that the seismic strengthening, said:

X Again, 2 bin 475 has been expanded from the base to prevent earthquake damage that may occur once a year, installation of anti-fall cables, replacement of existing supports, replacement of existing expansion joints, and possible damage to the deck in case of a tower collision. Within the scope of the major repair and structural reinforcement work of Fatih Sultan Mehmet Bridge, changing the suspension ropes, strengthening the towers, strengthening the box beam end diaphragms, changing the pendulum supports, changing the main cable clamps, changing the hanging plates and inspecting the main cable winding system. All necessary studies have been carried out. In short, all of our bridges are based on the Sea of ​​Marmara and have the performance and strength to meet the risks that may occur in anticipated earthquakes. ”

Turhan pointed out that giant projects such as Eurasia and Marmaray tunnels under the Sea of ​​Marmara were built to be one of the safest places in the possible earthquake in Istanbul. Han The Eurasia Tunnel is designed according to the latest international standards considering earthquake loads, tsunami effects and liquefaction. and manufactured. kul

Turhan, the tunnel, which can be in the North Anatolian fault 7,5 magnitude earthquake according to the construction of two seismic seals were realized, the system built under the Bosphorus, 500 once a year in Istanbul, even if the earthquake may be undamaged service can continue to stress undamaged.

Stating that 9 displacement sensors are placed on the 3 day 3 hours, 18 watches the 7 day Monitoring Center, where 24 units are located at the seismic connection points. told.

Erken Early warning system was installed in the immersed tube tunnel in Marmaray ”

Turhan stated that Marmaray Tube Tunnel was designed by considering very strict criteria in terms of earthquake resistance due to its proximity to the deepest underwater tunnel and active geological fault line ever built in the world.

“Marmaray 7,5 magnitude earthquake, zero security risk, minimum loss of function, immersed tunnel and water tightness of the combination was protected with the aim to escape. Flexible seismic joints were constructed to minimize load transfer and seismically isolate the two structures at each junction between the segments in the tube tunnel. An early warning system was also installed in the immersed tube tunnel in Marmaray. The system was established to prevent trains outside the tunnel from entering the tunnel during and after the earthquake, and to ensure that trains inside the tunnel were pulled to a safe location. The entrance structures of the stations against the tsunami waves were upgraded to 1,5 meters. As in the Eurasian Tunnel, Marmaray also has monitoring systems that detect seismic movements, namely 26 accelerometer, 13 inclinometer and 6 3 size displacement sensors, Train Central Control System in connection with Kandilli Early Warning System. ”

Ulusal National level communication plan is used in disaster and emergency situations ”

Minister Turhan stated that all kinds of preparations related to the communication infrastructure have been made and continue to be done and that the national level communication plan is used in coordination with solution partners in order to ensure the continuity of communication infrastructures in disaster and emergency situations, he said.

In order to provide communication in the geographical areas where GSM coverage is not available in case of emergency and to be used when necessary, Rohan-enabled mobile base stations that can be provided via transmission satellite in the 40 region have been deployed since December 2014 to be used in the administration and management of the related governorships. , floods, avalanches, such as disasters and emergencies in the field of communication to ensure disruption and additional capacity is actually used in the field. In addition, the 723 satellite phone for disaster and emergency communications has been purchased and the 55 satellite terminal has been installed. ”

Haberleşme Simultaneous communication capacity will be increased to 175 million ”

Minister Turhan, 26 September after the earthquake in Istanbul, both Istanbul and the Marmara region, very intense search traffic, reminiscent of the experienced, said:

“There was a shortage of access due to the earthquake as a GSM operator was undergoing renovation of its technology infrastructure. However, we would like to point out that such disruptions are experienced not only in our country but also in the world in the case of natural disasters. On the other hand, all GSM operators were interviewed and instructed to do whatever is necessary, including increasing the capacity, in order to prepare the communication infrastructure for any situation. In the 3 operator, a total of 118 million people have simultaneous communication capabilities. This capacity will be increased to 175 million. It is aimed to reach this capacity in a short time. ”

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