Contractor J/V ALPINE Bau - ΤΕRΝΑ S.A . - Pantechniki-

POWEL S.A.

Final Design & Construction

J/V ALPINE Bau- TERNA S.A.

Presentation by

Theodosios Skortsis

Civil Engineer N.T.U.A.

Construction Manager of Eleonas Depot,

Attico Metro, Athens, Greece

Depot of Attico Metro in Eleonas

East Part

West Part

Total Area 86.000 m2 Excavations: 720.000 m3 Satellite Photo (2007)

East Part Bench for the foundation of Stable Building (area of 26.500 m2) (February 2007) Average excavation depth 9.0 m

The foundation piles (Πάσσαλοι Θεμελίωσης) of the huge building for the parking of the trains (Stable Building) are shown. Right and up there is the West Side which was a dump (garbage) area. 120.000 m3 of garbage soil was removed from this side. (The photo was taken from a crane founded at the East Part. )

garbage

σσκκοουυππίίδδιιαα

Retain piles

Pieces 529

Total Length 7901 m

Concrete 5131 m3

Reinforcement 705.000 kg West Part – Construction of Retain Piles

West Part – Installation of Waterproofing system of Tank Α (08/01/08)

Laying of special embankment 331.048 tn (average height 3,0 m)

West Part – Support Services Building area

Installation of the subsurface drainage system (30 cm height) under the foundation slab of one of the 14 parts of the Stable Building.

Part 1 Part 2

Part 3

( Part 4

Part 5

Part 6

BUILDING OF THE STABLE OF TRAINS (February 2008)

Reinforced concrete building consisting of three divisions (Eastern, Central and Western) total area of 26.500 m2 (concrete volume 58.293 m3, reinforcement 8.851 tn). The building is founded on 912 piles with total length of 15.500 m, concrete volume 12.820 m3, reinforcement 2.066 tn

Beam reinforcement of the roof of Part 8 of the Stable Building (March 2008)

Stable Building- Implementation of the superstructure of the first 8 parts (April 2008)

Stable Building – Four parts are being constructed simultaneously. Above left the foundation of the Operations Support Building is being reinforced along with the laying of the special embankment of West Part of the Site (April 2008)

Laying of the special embankment of 3,0 m average height (total quantity 331.048 tn) for the foundation bench of all the buildings at West Part

Operation Support Building: 3.100 m2 area. 5.532 m3 of concrete and 753 tn of reinforcement (upper photo May 2008)

That Building houses the following: Signal Tower, Current Substation, Engine rooms, offices, warehouses, tank and fire pump room, parking for vehicles on the roof (down photo April 2009)

Construction of the retaining walls of average height of 8.0 m, length 687 m, concrete volume 3.456 m3 and 455.072 kg of reinforcement. The waterproofing membrane of total quantity of 25.000 m2 is shown.

Construction of the North Exit Ramp, concrete vol.. 1.969 m3 and reinf. 271.000 kg. (July 2008)

Final landscaping of the foundation bench of the West Part. Construction of the foundation of the Repair Building (August 2008)

Erection of the steel structure of Repair Building. The foundation slab (which is independent from the pad foundation of each steel column) with layout of 7 rail channels (pits). Slab area 9.600 m2, with 7.635 m3 concrete and 2.665 tn of reinforcement)

Erection of a steel beam at the Repair Building with length 41 m and at 10 m height.

The Repair Building has area 9.600 m2 and an extra floor with offices of 2.000 m2. The steel structure (which is painted with fire resistant paint of 60’) weights 850.000 kg.

Installation of the roof cladding with Kalzip system (total surface 9900 m2 ) January 2010

Installation of the side cladding (total surface 3.650 m2 ) November 2009

Internal view of the Repair Building. The train rails are shown (December 2009)

Construction of the steel curved Footbridge ( 85 m x 6 m x 3 m), which connects the Operation Support Building with the Repair Building (September 2009)

The Footbridge is supported on 10 elastomeric bearings and weights 59 tn. The support piers have 90 m3 of concrete and 10,2 tn of reinforcement.

Erection of the Train Wash Building of the trains (total weight 80 tn). The steel carrier is supported on a concrete foundation slab (concrete 762 m3 , 103 tn reinforcement) (Νovember 2009)

The cladding of the Train Wash Building consists of fire resistant panels of 60’ with stainless steel internal side. The roof cladding is Kalzip system.

South side of the Repair Building

North side of the Repair Building

East side of the Repair Building and Train Wash Building

Control Tower at the Operation Support Building

Train in the Stable Building’s platforms

Perimetric road in the Train Stable Building

In Numbers

- Excavations 720.000 m3

- Retain piles 529 pcs, Length 7.901 m, concrete 5.131 m3 , reinf. 705 tn

- Retain anchors 896 pcs - Perimetric pilecap length 945 m, concr 1.077 m3 , reinf. 117 tn - Perimetric waterproofing 25.000 m2 - Building waterproofing 34.178 m2 membrane - Special embankment 331.048 tn - Train Stable Building Pile foundation 912 pcs, length 15.500m, concrete 12.820m3,reinf. 2.066 tn Superstructure concr 58.293 m3, reinf. 8.851 tn

- Operation Support Building concr. 5.532 m3, reinf. 753 tn - Repair Building Foundation slab concr. 7.635 m3, reinf. 2.565 tn Steel Structure weight 795 tn, cladding13.550 m2

- Steel Footbridge weight 58 tn, concr. 90 m3, reinf. 11 tn - Tank Α concr. 4.263 m3, reinf. 1.308 tn - Tank Β concr. 540 m3, reinf. 95 tn - Tank C Excavations 7.000 m3, Pump Station concr. 159 m3, reinf. 19 tn

- Train access tunnel concr. 3.844 m3, reinf. 271 tn - South Entrance Guardhouse concr. 146 m3, reinf. 19 tn - North Exit Ramp concr. 1.969 m3, reinf. 271 tn - Perimetric Wall concr. 1.445 m3, reinf. 91 tn - Flammable materials Warehouse concr. 133 m3, reinf. 19 tn -Other Building/Structures concr. 2.747 m3, reinf. 370 tn

Total Concrete volume: 142.840 m3

Total steel Reinforcement: 18.502 tn