- Important warning from geology engineers for the airport: Geological engineers, 3. Noting that the airport is not suitable for large airport construction due to the fact that the airport is a mine and lakes region, they warned that there might be dents.
Istanbul 3 which was built in the area between the villages of Akpınar and Yeniköy at the Arnavutköy-Göktürk-Çatalca junction near the Terkos lake. the ground of the airport is not appropriate.
Geology engineers, even if the project is completed; It suggested a possibility of lengths with 3 500 4 thousand thousand meters wide 100 60 6 meters ranging from total collapse in horizontal and vertical direction as done in the planned runway.
TMMOB Chamber of Geological Engineers Istanbul Branch, 3. completed the report on the selected area for the airport.
In the report; 3. near the lake of Durusu (Terkos) on the Black Sea coast where the airport will be built, detailed information about the area of about 7 thousand 594 hectares and works on it should be done.
“Approximately one third of the area is covered with oak and beech natural forest. The total forest area is 6 thousand 172 hectares.
The remainder is coal-fired and unexamined, uncontrolled, primitive, and often abandoned coal and sand quarries. Registered mine site 2 thousand 670 hectares.
Until recently, the landscape seen from an aircraft from these areas consists of numerous irregular hills and pits.
When the pits left from mining enterprises filled with water over time, they turned into artificial lakes; and the heaps of coal and sand operating wastes have been turned into hills by afforestation.
Large and small 66 lakes have been identified in this region. Only one of the lakes found in the region is a natural lake.
Landslide hazard
The geology and tectonic structure of the area selected for the airport offers or provides alarms that show that this region is not suitable for airport construction.
Some of the data that even a non-expert can see are: artificially formed lakes and hills in abandoned coal fields; excessive excavation and filling to be done to eliminate these topographical barriers; dewatering of existing artificial lakes; presence of water-saturated sediments at the base of the 66 lakes; superficial and deep landslides; sudden settlements, liquefaction risks, uncertainty of groundwater level; case of abandoned coal and clay from the field to be rehabilitated, both geologically well saturated with water have not completed their living units normally consolidated to have the quality to meet the project cargo unit, stabilization of filler planned in 105 m in height.
Slime of lakes
All will be held in regions with structural weaknesses that construction of the airport and the airport itself but also of the flora on the xnumx'n in the environment, agricultural lands and natural habitats will cause fatal damage to vision.
We note that these drawbacks and reservations are clearly expressed in the Final EIA report dated April-2013.
Slime thick, up to 6,5 meters, especially in the base of large lakes; Wastes of large amounts of surface-rich sediments and loose waste materials are a few of the hazardous properties of the ground.
Due to the above-mentioned reasons, despite the fact that tens of meters of muddy-clay levels have been cut in the soundings made at the construction site, the solid ground has not been reached. ”
The first stage will be the 2017 track, which will be independent of each other at the new airport, which is planned to be put into service at 60.
3 made between Yeniköy and Akpinar villages. soils from the area at the airport were examined by engineers.
Acid will precipitate soil over time
TMMOB Chamber of Geological Engineers Istanbul Branch, 3. completed the report on the area selected for the airport.
The report says: terk The project area is an abandoned coal mining site. These coals contain Pyrite (FeS2) minerals. Pyrite reacts with free oxygen to react easily and quickly to produce acid. Pyrite mineral is released into the nature in an uncontrolled manner, without any protective measures, and 3. It is abundant in the composition of the materials at the bottom of the mineral pits, which turn into large and small lakes in the mine wastes forming the hills in the region where the airport will be built. In the acidic environment which will be formed by the decomposition of the pyrite mineral over time, the presence of serious sediments and settlements in carbonate-containing materials is very high. In order to create places runways and aprons of up to 2,5 105 billion cubic meters using approximately the thickness of the liner material is to be made is a great danger because the ground is too weak. It is only possible to carry this floor without any collapse of the thick filler on it.
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