E-ilf-b-c11-arc-spc-0002 R03

1.3Scope of the elaboration

Subject of the elaboration: Building Permit Design of Building Investment no. 5 - C11 "Świętokrzyska" Station being a part of the investment of the Metro Warsaw line II from the “Rondo Daszyńskiego” station to the “Dworzec Wileński” station.

This elaboration concerns Site Development Plan: covering investment area - construction of Station C11 - "Świętokrzyska" along with technical infrastructure

The subject scope of this elaboration includes:

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  station core,
  
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  above-ground structures: air intake and exhaust shaft, exhaust shaft, elevators, Metro exits
  
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  diversions of the underground structure interfering with the planned object
  
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  station utilities connections,
  
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  road layout reconstruction: streets, sidewalks, cycle trail.
  
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  greenery.
  

The subject scope has been marked in the Site Development Plan as: 1, 2`, 3`, 4`, 5`, 6`, 7`, 8`, 9`, 10`, 11`, 12`, 13`, 14`, 15`, 16`, 17`, 18`, 19`, 20`, 21`, 22`, 23`, 24`, 25`, 26`, 27`, 28`, 29`, 30`, 31`, 32`, 33`, 34`, 35`, 36`, 37`, 38`, 39`, 40`, 41`, 42`, 44`, 43`, 44`, including the intersection of Marszałkowska Street with Świętokrzyska Street and surrounding areas. This elaboration will cover the construction of the Metro station with full-line equipment, technical infrastructure and greenery reclamation. The elaboration applies to plots nos.: 49, 51, 52/1, 52/2, 57/1, 59, 60/3, 60/5, 60/6, 60/7, 61/5, 61/6, 61/7, 61/8, 61/9, 61/10, 62/1, 62/3, 62/4, 62/5, 64/1 in section 5-03-06, 28, 44/5, 44/6, 44/9, 44/8, 65, 66/1, 66/2, 66/3, 69, 80, 100/1, 100/2 in section 5-03-07, 1/2, 1/3, 1/4, 22/2, 22/3, 22/4, 22/5, 23/18, 23/20, 23/22, 23/24, 23/25, 23/32, 23/35, 25/38, 23/46, 23/57, 23/58, 23/59 in section 5-03-09, 1/1, 1/3, 2, 3, 4, 7, 11/2, 11/4, 16 in section 5-03-10.

There out of the subject scope are plots nos.: 23/36,23/38,23/33 in section 5-03-10.

The remaining scopes are defined in separate elaborations.

2EXISTING LAND DEVELOPMENT CONDITION

The investment site is located in Warsaw, in the Śródmieście district, at the intersection of Marszałkowska Street and Świętokrzyska Street.

The area of the desoigned investment is developed – it is located in the strict city centre – an intersection of Warsaw's main streets: Świątokrzyska and Marszałkowska. In the area of the designed station the Marszałkowska Street is a dual carriageway with a tramway track. The underground utility networks networks are present along the entire area intended for the investment.

The south-western corner of the intersection is occupied by greenery - the Świętorzyski Park with small architectural structures such as monuments, marker and advertising posts, benches, park lanterns, etc..

The south-eastern corner of the intersection is a hardened area used by cafes and restaurants, and the remaining part of the area is developed by retail and residential buildings, as well as by vehicle and pedestrian traffic.

The north-eastern corner is in 90% occupied by residential and office buildings, the remaining part is used by city traffic, with some green areas.

The entire surface of the north-western corner, closest to the intersection, is hardened and used as a parking lot and pedestrian traffic area. There are also two exits from the existing Metro station (Line I). In the nearest future the area will be developed in such manner as to incorporate the existing Metro exits into the building.

The investment's area is partly (south-western section) located within the current Local Area Plan (MPZP) of the PKIN, dated March 9, 2006, and partly located within the obtained and valid ULICP (location) decision.

The investment site has not been entered in the Register of Historical Monuments and is not located within mining area borders.

3functional solutions and object characteristics

3.1Building description

The Świętokrzyska Station is a serial station with enhanced functional programme related to the service of the Metro Line I/II tunnel connector. Świętokrzyska Station is located at Świętokrzyska Street under the intersection with Marszałkowska Street, and its eastern and western heads are integrated with the communication system of the entire Metro.

The designed station consists of a three-storey underground body, exits and above-ground communication and ventilation structures. The station's body contains: pgs level (passenger platform, -3), technological premises level (-2) and level (-1) housing the clearance hall, shopping areas, technological premises and an underground passage.

The length of the main station core is 135 m, and the width oscillates between 27 m and 25.8 m in the widest point and 24 m in the typical dimension. The highest point of the main core is +33.4 m, and the lowest is +10,69 m

In the western head the station is directly combined with the existing A14 station, 3 rows of escalators from level -2,5 of the designed C11 station to the level of -2 (platform) of the existing station.

3.2Building structure characteristics

The station building along with holding tracks has been designed as 3-storey completely set below grade building with 6 entrances and exits Divided into 6 parts with expansion joints due to phased execution, as well as the elimination of deformations resulting from the difference of temperatures and shrinkage of concrete

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  The building is designed as a monolithic reinforced concrete structure.
  
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  The station building is divided into segments separated with expansion joint of 50 mm thickness.
  
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  Building structures will be made with top-down method.
  
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  The external walls of the entire building that are in contact with the ground are designed as diaphragm walls. The walls of the main core are of 1.00m thickness, whereas the underground passage walls are of 0.60–0.80m thickness. Diaphragm walls will be constructed in a pre-made excavation whose walls will be protected with a structure in the form of a Berlin-type wall filled with wooden beams.
  
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  Diaphragm walls excavation is approx. 10 m below the foundation level (approx. 19m below the land surface level).
  
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  Reinforced concrete top slab of the station will be poured on slope. The top slab has a variable thickness varying from 1000mm to 1200mm and is borne on diaphragm walls, whereas the ceiling thickness of the passages varies from 800 to 1000mm.
  
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  The intermediate reinforced slabs of the building that comprise transverse system of the diaphragm walls will be completed as the top-down phases of the construction advance.
  
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  Foundations have been designed on the basis of floating raft system of approx. 1200 mm thickness.
  
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  Apart from the platforms, a concrete railway substructure for fitting tramway tracks is designed on the bottom slab.
  

Parameter		Value	Units
Number of storeys		3	none
Internal dimensions of structure	Length	133 m / 158 m	m
	Width	25 m / 22 m / 23.6 m	m
	Height	20 m / 4.1 m	m
Platform width		12	m
Platform slab thickness		0,25	m
Core station diaphragm walls thickness		1,0	m
Diaphragm walls depth		37	m
Monolithic bottom slab thickness		1,20	m

Fig. 1 – Technical parameters for the ”Świętokrzyska”