Artvin - Deriner Dam and HEPP PDF Print E-mail

General Information

Deriner Dam and Hydroelectric Power Plant is located at Artvin province on Çoruh River and the type is double curvature concrete arch dam.

The height of the dam is 253 meters and with this height, the dam is the highest in Turkey and third highest in the world.

The scope of Deriner Dam and HEPP construction includes 40.000.000 m3 of rock excavation, 3.500.000 m3 of dam body concrete, diversion tunnel, underground powerhouse, overflow spillways, access roads and internal roads.  

 

OWNER

State Hydraulic Works (DSİ) - TURKEY

CONTRACTOR

Deriner Consortium - Under the leadership of ERG

PLACE

On çoruh river near Artvin province

PURPOSE

Energy (670 MW, 2.117,75 GWh / year)

CHARACTERISTICS

 

Type

Double curvature concrete

Crest Elevation

397 m

Height

 

from thalweg

202 m

from foundation

253 m

Crest Width

12,00 – 18,00 m

Foundation width

55,00 m

Body concrete

3.500.000 m3

Diversion tunnel

898,14 m

Diversion capacity

1.804 m3/s

Spillway type

Overflow 2 ea.

 

Orifice 8 ea.

Overflow spillway capacity

2.250 m3/s

Orifice spillway capacity

7.000 m3/s

Maximum water elevation

395 m

Total reservoir volume

1.969 x 106 m3

 

 

Powerhouse

Right bank

Type

Underground

Number of units

4

Installed capacity

4 x 167,5 MW (670 MW)

Total energy

2.117,75 GWh

 

 

 

Site Facilities


 

According to the scope of the project, the temporary and permanent facilities, workshops, infrastructural facilities, water supply, wastewater and treatment facilities have been constructed.
 
The facilities have been constructed in 5 different elevation because of the steep slope. The machinery and steel workshops, engine workshop, warehouse, restaurant, crushing-screening plant, concrete plant and the office buildings necessary for DSİ and other consortium members have been located at ERG-1 site at elevation 200 m. The residential buildings for the workers have been located at ERG-2 and the lodgings for engineers and managers, technical office, guest-house, conference hall and local headquarters have been located at ERG-3 and TSE sites. At elevation 650 m, the facilities of DSİ Artvin Regional Directorate have been constructed.
 
 




Plant, Machinery, Equipment List

 

PLANT

 

Steel and Formwork Workshop

10.000 m2

Machine Workshop

30.000 m2

Crushing and Screening Plant

5 ea.

Concrete Plant

5 ea.

Cable Crane

3 x 30 ton
 

 

MACHINERY

 

Bulldozer

20 ea.

Loader

15 ea.

Excavator

20 ea.

Grader

7 ea.

Roller

5 ea.

Truck-mixer

20 ea.

Concrete Pump

9 ea.

Concrete Truck

4 x 30 ton

Drilling Machinery

15 ea.

Truck

50 ea.

Rock Truck

10 ea.

Trailer

7 ea.

Fuel Tanker

8 ea.

Mobile Crane

14 ea.

Truck Mounted Crane

10 ea.

Pick-up

25 ea.

Pickup Truck

25 ea.

Tractor

10 ea.

Bus

10 ea.

Minibus

5 ea.

Jeep

10 ea.

Car

20 ea.

Cement Trailer

30 ea.

Injection Machines

15 ea.

Various Machinery

16 ea.
 

 

EQUIPMENT

 

Concrete Mixer

3 ea.

Generator

22 ea.

Transformer

25 ea.

Water and Injection Pump

80 ea.

Workshop Equipment

30 ea.

Welding Machines

60 ea.

Steel Cut Bend Machines

8 ea.

Concrete Vibrators

35 ea.

Compressors

15 ea.

Electric Compressor

25 ea.

Formwork Systems

10.000 m2

 

 

Applications

DAM EXCAVATION:
The dam body excavation of both right and left bank is totally 13.000.000 m3.

 

 

DAM BODY
The concreting period of 3.500.000 m3 dam body concrete is 1.000 working days. The capacity of each bucket of 3 separate cable cranes used in dam body concreting is 30 tons.

 

DIVERSION:
The diversion of Çoruh River have been completed after the construction of diversion tunnel of 937 m long (incl. inlet and outlet structures) and 11,60 m inner diameter.


 

ANCHORAGE

 

 

RIVER DREDGING

 

 

ROADS:
A by-pass road of 23,5 km has been constructed in order to carry the traffic of existing roads passing through the site area. The length of site internal roads is 37 km.


UNDERGROUND POWERHOUSE:
The dimensions of underground powerhouse is 45 m x 120 m x 20 m and the dimensions of valve chamber is 30 m x 90 m x 10 m.


ELECTROMECHANICS:
The total weight of electromechanical equipment such as turbine, generator, spiral casing, draft-tube, etc. is 8.500 tons.  

 

 

 

COFFERDAMS

 

 

TUNNELS

 

 

POWERHOUSE

 

 

 

Concrete Production Stages

CRUSHING, SCREENING and WASHING PLANT 1000 ton/h
1 BTI hydraulic breaker
2 Vibrating grizzly (48" x 20“)
2 Jaw crusher
1 Triple deck Specmaker screen (6' x 20')
3 Triple deck Vibro/King screen (6' x 20')
3 Gyrasphere crushers
3 Triple deck Specmaker screen (8' x 20')
3 Pioneer vertical shaft impactor
2 Sand sort classifying tank (10' x 40')
1 Single spiral sand prep (44" x 32")
3 Twin spiral sand prep (44" x 32")
7 Vibrating pan feeders (36" x 72")
3 Magnetic belts
64 Conveyors (2.400 m)
PLC control system
 

 

AGGREGATE STORAGE 10.417 m3
5 Underground aggregate silos
10 Vibratory feeders
Transport conveyors
PLC control system
 

 

ICE & CHILLED WATER PLANT
Flake ice plant 210 ton/day
Flake ice storage (240 ton)
Aggregate pre/cooling plant by air
2 Chilled water plant for ice makers
& batch water
Water heating system for winter
PLC control system
 

CONCRETE BATCHING PLANT 360 m3/h
4 Tilting mixers (4 x 4,5 m3)
1 Aggregate silo, 5 bins (1.000 m3)
2 Cement silo (2 x 75 m3)
2 Cement screw conveyor per silo
5 Aggregate batchers
1 Cement batcher
1 Water tank (10 ton)
1 Water batcher
1 Flake ice day tank (1.800 kg)
1 Ice batcher
2 Admixtures tank (800 lt)
2 Admixtures batcher
2 Moisture measuring device
1 Concrete sampling system
Moisture compensation system for aggregates
PLC control system
 

CEMENT STORAGE 4 x 2.300 ton
Diameter 12,4 m
Height 27,4 m
Total weight 520 ton
Pneumatic transport system 150 ton/h
PLC controlled transport system
 


 

CABLE CRANE
Dam body is concreted using 3 cable cranes each having 30 ton capacity and 900 m span. Each machine has an installed capacity of 20 MW and the total necessary energy is 6.000 kW. The volume of buckets used are 4 m3, 6 m3 and usually 9 m3. The total body concrete of 3.500.000 m3 is poured with a capacity of 360 m3/hr.