Rehabilitation of the Urban Water Supply and Sanitation in the Sava River Basin in Bosnia and Herzegovina, (BMZ ID 2002 65 876). Rehabilitation of Urban Water Supply Una-Sana region, Consulting Services (Part A)

1. “Debeljaca”
WS RCTank (700m3)
Construction
Reinforced Concrete WS Tank
“Debeljaca” (V=700m3),
a part of Water Supplying System of
Bihac City,
Bosnia & Herzegovina
The new RC water reservoir
constructed app. 100 m north of the
old reservoir. The maximum operating
water level is at a height of
293,00masl, the minimum water level
is at a height of 288,50masl.
In the first stage only one chamber of
the reservoir with a volume of 700m³
will be constructed. The walls and the
piping built in a manner that an
extension in the future with further
700m³ is possible without any
changing.
Construction Period:
2009 / 2010

2. RCTank - Construction
Sequence

3. COMPACTION OF STRUCTURAL FILL PLATE LOAD TEST (AS PER DIN18134)

4. PREPARED SUB-GRADE
LAND SLIDE ON WORK-PIT SIDE STOPPED BY GABIONS,
PLASTIC SHEETING AGAINST RAIN

5. PVC DN100MM DRAINAGE PIPES SYSTEM INSTALLED
WITHIN THE SUB-GRADE
BLINDING CONCRETE INSTALLATION
CONCRETE CLASS C12/15, D=8.0CM

6. BLINDINGCONCRETE (C12/15; 8CM) VALVE CHAMBER AND RESERVOIR BASE SLAB

7. REINFORCED CONCRETE BASE SLAB (C30/37; 40CM)
CONCRETE (C12/15; 5CM)
HYDRO-INSULATION (BITUVAL V4)
COLD BITUMINOUS COATING (IBITOL)
BLINDING CONCRETE (C12/15; 8CM)
VALVE CHAMBER BASE SLAB – C30/37 CONCRETE, D=30.0CM

8. PIPE-FITTINGS INSTALLATION IN PARTITION WALL
INSTALLATION OF PIPE NOZZLES, HORIZONTAL PVC
WATER-STOP

9. VALVE CHAMBER DRAIN PIPE, WALL KICKER HORIZONTAL
PVC WATER-STOP
PARTITIONWALL PIPE NOZZLES

10. PVC WATER STOP 30MM WIDTH ON HORIZONTAL
CONSTRUCTION JOINT BETWEEN WALL KICKERS AND
FUTURE WALLS. CONCRETE CLASS C30/37, D=40.0CM
VALVE CHAMBER FITTINGS INSTALLATION AND
PROTECTION AGAINST DAMAGE. WALLS THICKNESS
D=40.0CM

11. Reservoir SideWalls
concrete installation
Wall’s construction joints with
vertical PVCWater-stop
30mm

12. SLUMPTEST ON EACH DELIVERED MIXTRUCK
FORVERIFICATIONOFWORKABILITY
AIR CONTENTTAKEN ON EACH
DELIVERED MIXTRUCK

13. VALVE CHAMBER REINFORCEMENT & FORMWORKS
VALVE CHAMBER OUTSIDE WALL C30/37, D=30.0CM
RESERVOIR INLET WALL CONCRETE INSTALLATION
CONCRETE CLASS C30/37, D=40CM, H=5.54M

14. RESERVOIR PARTITION WALL REINFORCEMENT WORKS
CONCRETE CLASS C30/37, D=40CM
RESERVOIR VALVE CHAMBER SIDE WALLS CONCRETE
INSTALLATION
CONCRETE CLASS C30/37, D=30CM

15. RESERVOIR PARTITION WALL FORMWORKS
WALL THICKNESS D=40CM
RESERVOIR COLUMNS (3NR) CONCRETE INSTALLATION
CIRCULAR COLUMNS 3NR; D=35CM, H=5.54M

16. VALVE CHAMBER SLAB FORMWORK
TANK’S VALVE CHAMBER SLAB REINFORCEMENT WORKS,
WATER CHAMBER ROOF SLAB FORMWORKS

17. VALVE CHAMBER UPPER WALLS, WATER CHAMBER ROOF
SLAB REINFORCEMENT WORKS
ROOF SLAB REINFORCEMENT WORKS, VALVE CHAMBER
WALLS FORMWORK

18. RESERVOIR ROOF SLAB C30/37, D=22CM WATER CHAMBER ROOF SLAB CONCRETE WORKS

19. WATER CHAMBER ROOF SLAB CONCRETE
C30/37, D=22.0CM
VALVE CHAMBER ROOF SLAB CONCRETE

20. ROOF SLAB TIGHTNESS TESTING AS PER EN 1508 A.6-8.3.4,
8.4,4. NO LEAKAGES RECORDED
RESERVOIR (WATER CHAMBER) WATER-TIGHTNESS
TESTING IN ACCORDANCE WITH EN1508

21. WATER-TIGHTNESS TESTING AS PER EN 1508 A.6-8.3.4, 8.4,4
SEEPAGE ON WALL’S OUTER SURFACE SELF-HEALED
WITHIN 2 WEEKS PERIOD

22. Hydro &Thermal
InsulationWorks
Roof Slab Hydro/Thermal
Insulation:
-Trench rampart Protective
membrane (Tefond)
-Thermal Insulation (Fibran)
- Hydro-insulation (BituvalV4)
- Cold bituminous coating
(Ibitol)
- ReinforcedConcrete Roof
Slab (C30/37; 22cm)

23. Hydro &Thermal
Insulation
OutsideWalls Hydro/Thermal
Insulation:
VentilationSteel Pipes DN200
Reinforced ConcreteWall
(C30/37; 40cm)
Cold bituminous coating
(Ibitol)
Hydro-insulation (BituvalV4)
Thermal insulation (Fibran)
Protective membrane
(Tefond)
CrushedStoneAggregate

24. RESERVOIR INLET PRESSURE PIPELINE DI DN300 WATER CHAMBER PERFORATED INTAKE PIPE DN300

25. Final Status -
Reservoir Entry
Old, abandoned reservoir
visible behind the new
reservoir entry

27. Final Status – SCADA
System

28. SUCTION PIPE DI DN300WITH AUTOMATICAIRVALVE FINAL STATUS – VALVE CHAMBER

29. ELECTRO MAGNETIC FLOW METER PROMAG 50W ACTUATOR