Bayburt Group chooses Sandvik tunneling jumbos for a high speed train project in Turkey
Senbay-Özgün joint venture, a part of Bayburt Group of companies, recently purchased seven Sandvik tunneling jumbos for Istanbul – Ankara high speed train relocation project "Dogançay".The project includes 10 kilometers of tunnel, with 1 400 000 m3 of excavation.
Turkish state railway awarded the Doðançay project to the main contractor Senbay-Özgün on May 10, 2013. The new 10 kilometer tunnel is being built in the city of Sakarya, with the purpose to cut down the distance between two major Turkish cities, the capital Ankara and Istanbul. The excavation of 1 400 000 m3 is scheduled to last 180 days, and the project is set to be completed on November 11, 2013.
Bayburt Group purchased seven Sandvik underground drill rigs for the project: five units of Sandvik DD321-40 and two Sandvik DT820s. The excavation in the high speed railway project will be challenging due to fractured rock and weak types such as siltstone, clay stone and mudstone. The Bayburt group chose Sandvik underground drill rigs as they are trouble-free and easy to operate. Another key factor was Sandvik's high quality service and support network in Turkey.
| Technical specifications | DD321-40 | DT820 |
|---|---|---|
| Coverage | 8-49 m2 |
12-110 m2 |
| Hole diameter | 43-64 mm |
43-64 mm |
| Hole length | 2830–4660 mm | up to 6180 mm |
| Booms | 2 x SB40 |
2 x TB90 |
| Feed | TF500, 12 ft |
2 x TF500, 16 ft |
| Rock drill | 2 x RD520, 20 kW | 2 x HLX5T, 22 kW |
| Control and operation system | THC561, hydraulic | THC560, hydraulic |
| Cornering | 3700 mm | 4730 mm |
| Length (with default feed) |
12350 mm | 14900 mm |
| Width (drilling) |
2150 mm | 3000 mm |
| Height (drilling) |
3200 mm | 3600 mm |
| Weight (standard) |
22000 kg | 26500 kg |
For further information, please contact:
Satu Rämö
Global Marketing Communication Manager
Sandvik Construction
Office Phone: +358 205 44 151
Mobile Phone: +358 40 537 4020
E-mail: satu.ramo@sandvik.com