• Assignor: „METROPOLITAN“ EAD • Contractor: Consortium „UNDRGROUND CONSTRUCTION PARTNERS 2014"– Consortium members: -„STANILOV” LTD – Leading Partner with 67 % participation.   -„VIA CONSTRUCT GROUP” LTD – Partner with 30 % participation. -„SVEKO ENERGOPROEKT” AD – Partner with 3 % participation.

Subway line II, section (from the subway station MS II-11, km 10+452) to the subway station MS II-12 with a line point after it (km 11+752) and a part of a transport ramp. The total length of the subway section is 1300.3 m. The tunnel section of 781 m of length from the subway station MS II-11 to the inter-station Ventilation System II 11-12 is to be constructed using NATM (New Austrian Tunnel Method). The remaining part of the route is 

Site: Sofia Subway Extension Project: stage II – diameter I, Tsarigradsko Shose Blvd. (MS 19) – Druzhba Residential District – Sofia Airport (MS 23) Section:

Lot No. 1: Section from Subway Station MS 13 (Mladost 1, km 15+450) to km 17+000; 

The section executed by joint-venture „Stanilov-Metroproject“ begins straight from the „Tsarigradsko shosse“ Blvd., crossing a plain part , then overcome partly with the open structure the strait slope, in plain part crossing „Prof. Tsvetan Lazarov“ Blvd and reaches the area of Metro station 20. The main part of the Lot is underground with 1046 m length and includes one underground metro station – Metro station 20.

Site encompasses execution of metro tunnel and Metro station II - 4 at the section km 3+434 - km 3+584. Metrostation II-4 is of the "platform" type with two vestibules and total length of 150,25 m

Construction of a rotational shaft with sizes 29/25 m and depth 25 m. The construction is in complex engineering-geological conditions. A modern type of fortification with pilots, anchors, sprayed concrete and reinforced concrete lining is applied.

The metro station is located on “Andrey Saharov” boulevard just before the “Vartopolo” bridge on the border between residential areas “Mladost” and “Darvenica”. The station is on two levels – over ground on which the rail trace is  situated and underground level with office premises and entrance hall the access to which is accomplished by two subways. The upper ground platforms are covered by steel construction, edged with etalbond ...