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Home  >   Projects  >   Reconstruction, Development and Extension of Sofia Airport – LOT B2 – New Runway System and Related Works
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Reconstruction, Development and Extension of Sofia Airport – LOT B2 – New Runway System and Related Works

Funded by the European Investment Bank and the Kuwait Fund

Employer: Ministry of Transport, Bulgaria

Project execution period: 2003 – 2006

Description of the project:

The main contractor of LOT B2 was M.A. Al-Kharafi & Sons W.L.L. and ADMAK GENERAL CONTRACTING W.L.L. JOINT VENTURE. Geotechmin OOD was selected as the main local subcontractor.

1) Subproject “Bulk Earthworks, Drainage and Airfield Facilities” includes the following works:

  • Topsoil excavation – 560,000 cub.m.
  • Excavation works for the design levels achievement – 586,750 cub.m.
  • Excavation & backfilling works – 2,145,350 cub.m.
  • Selected fill and frost-protection layer – 180,000 cub.m.
  • Reinforcement concrete pipe culverts – 1,180 m
  • Concrete-lined ditch – 18,750 sq.m.
  • Subsurface drains – 12,000 m
  • Concrete works – foundations of ground lighting facilities, transformer shafts, etc. – 3,000 cub.m.
  • Temporary dyke across existing gravel pit and dewatering of artificial lake with est. volume of 1 million cub.m.

2) Subproject “Strengthening of Iskar River” includes the following works:

  • Excavations – 129,148 cub.m.
  • Backfill works (including rock fill) – 82,630 cub.m.
  • Concrete works – 5,700 cub.m.
  • Cell geosystem 15 cm – 3,500 sq.m.; cell geosystem 20 cm – 21,300 sq.m.
  • RENO mattresses – 13,100 sq.m.
  • Grassing – 70,516 sq.m.
Stabilization of Iskar River
Construction of supporting prisms
Preliminary works for the foundation of the runway system
A completed section in the area of the runway-bridge facility
A completed section in the area of the runway-bridge facility
The completed runway system
Copyright © 2010 Geotechmin Company, Sofia, Bulgaria