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In this section the technical information of the project is presented in form of the following items:
Body specifications
 
Item
Quantity
Dam type Double-Curvature Concrete Arc
Height from foundation 195 m
Crest length 470 m
Crest width 6 m
Foundation width 40 m
Total volume of the body 1,100,000 m3
Body specifications
Reservoir specifications
Item
Quantity
Total volume of reservoir 1158.4 million m3
Area of reservoir 24.5 km2
Length of dam lake 40 km
Average width of dam lake 400 m
Normal level 1432 masl
Reservoir specifications
Diversion system
Item
Quantity
Numbers of diversion tunnels 1
Length of diversion tunnel 768 m
Tunnel diameter 13.9 m
Open-cut excavation volume 130000 m3
Underground excavation volume 115000 m3
Cross section Circular
Type of lining Concrete
Tunnel diameter after lining 12.5 m
Discharge capacity 1893 m3/s
Type, height and volume of upstream cofferdam CSG, 44 m and 104000 m3
Type, height and volume of downstream cofferdam Rock-fill, 10 m and 35000 m3
Diversion system
Instrumentation
List of monitoring equipment

QUANTITIES

Symbols

EXPLANATION

LEFT

CENTER

RIGHT

TOTAL

PS
Anchor point for direct pendulum

2

2

2

6

PB
Pendulum BOB

2

2

2

6

PF

Inverted pendulum float

2

1

2

5

PA

Inverted pendulum Anchorage

2

1

2

5

PMS

Pendulum measurement station

10

10

10

30

JID

Directional joint meter

10

12

10

32

TC

Theodulite console in gallery

20

10

20

50

CT

Concrete temperature thermometer (Total – number of embedded instruments)

15

20

15

50

WT

Water temperature thermometer

3

5

3

11

AT

Air temperature thermometer

3

5

3

11

CL

Clinometers

3

6

3

12

SMR

Strong motion recorder

2

3

2

7

EX

Extensometer

6

4

6

16

PM

Vibrating Wire Piezometer

9

6

9

24

RW

Reservoir water level indicator

-

1

-

1

DM

Seepage measurement Station (V notch)

2

3

2

7

TB

Terminal Box for Thermometer Cables

1

1

1

3

OP

Geodetic Observation target

6

-

5

12

CP

Geodetic control point

10

4

10

24

TA

Target on downstream face of dam

8

10

8

26

UG

Uplift Gauge with pressure-meter

-

5

-

5

SP

Stand-pipe piezometer (casagrande)

30

-

30

60

ADAS

Automatic Data Acuisition System

-

-

-

1

MS

Meteorological Station

-

-

-

1

Instrumentation
Spillway
Item
Quantity
Type of spillway Free
Discharge capacity 6300 m3/s
Spillway
Quarries and their specifications
Fine-graded material
Coarse material
Rock quarry
Location
Near Sardasht Village Upstream waterway of Sardasht Village Dam excavations and lateral structures
Transportation distant 20 km 27 km 2 km from deposit area
Volume 600000 m3 600000 m3 1600000 m3
Type Layered clay Layered sand-clay
Lime and Marne-lime
Quarries and their specifications
General specifications of powerhouse
Item
Quantity
Type of powerhouse Surface hydroelectric
Capacity 400 mw
Average annual generation 1121 GWh
Turbine type Vertical Francis
General specifications of powerhouse
Specifications of powerhouse equipments
Item
Quantity
Numbers of turbine 4 units
Power of each turbine 100 MW
Output in nominal condition 94.5 %
Height of turbine design 177 m
Discharge of turbine in nominal condition 80 m3/s
Numbers of transformers 4 units
Nominal power of each transformer 128 MVA
Nominal second voltage of transformer 410 KV
Numbers and type of generators Vertical synchronic
Output power of each generator 118 MVA
Nominal voltage of each generator 13.7 KV
Rotation speed of generator 300 rotations/minute
Nominal current of generator 4000 A
Basic nominal voltage 13.7 KV
Cooling system Water and air
Specifications of powerhouse equipments
Specifications of powerhouse building
 
Length of the building
Width of the building
Height of the building

75 m

24 m

48 m


 

 
Item
Quantity

Excavation

600000 m3

Reinforcement

1670 tons

Structural and filling concrete placement 

44760 m3
 
Specifications of powerhouse building
Specifications of powerhouse outlet tunnels
Item
Quantity
Gradient of outlet channel be(vertical:horizontal) 2:1
Gradient of outlet channel banks (vertical:horizontal) 1:3
Length of channel (meter) 29
Water level under condition of both units operation 1266.5
Water level under condition of one units operation 1264.5
Specifications of powerhouse outlet tunnels
Specifications of powerhouse waterways
Water way Tunnel No.1
Location
Beginning level (masl)
Ending level (masl)
Length (meter)
Internal diameter (meter)
Type of lining
High level tunnel
1376.2

1344.1

269.4

6.5

Concrete

Connection joint to vertical shaft

1344.1

1314.3

43.7

6.5

Concrete

Vertical shaft

1314.3

1298.8

15.5

6.5

Concrete

Connection joint to low level tunnel

1298.8

1268.9

44.1

6.5

Concrete

Low level tunnel

1268.9

1254.8

142.2

5.2

Steel


Water way Tunnel No.2
Location
Beginning level (masl)
Ending level (masl)
Length (meter)
Internal diameter (meter)
Type of lining
High level tunnel
1376.2

1340.5

299.3

6.5

Concrete

Connection joint to vertical shaft

1340.5

1310.8

43.7

6.5

Concrete

Vertical shaft

1310.8

1300.5

10.3

6.5

Concrete

Connection joint to low level tunnel

1300.5

1270.6

44.1

6.5

Concrete

Low level tunnel

1270.6

1254.8

159.1

5.2

Steel

Specifications of powerhouse waterways
Technical specifications of post and switchyard

Type

Normal on-the-ground

Voltage level

410 KV

Numbers of high voltage lines

2

Technical specifications of post and switchyard
Specifications of tunnels

Bottom outlet

Item
Quantity
Numbers 2
Level of outlet no.1 1325 masl
Dimensions of service gate (height*width) 3*3.5 m
Maximum discharge capacity 395 m3/s
Level of outlet no.2 1310 masl
Dimensions of service gate (height*width) 3*3.5 m
Maximum discharge capacity 440 m3/s
 
 

Power house

Item
Quantity
Water filling level 1372.7 masl
Water filling capacity 160*2 m3/s
Diameter of concrete water transfer tunnel 6.5 m
Penstock diameter 5.2 m
Maximum height on turbine 177 m
Turbine speed 300 rotations/min
Specifications of tunnels
Intake structures
In this regard no data exists.
Intake structures
Outlet structures
In this regard no data exists.
Outlet structures
Access roads and bridges
 
Access roads specifications
 
Access roads
length (m)

Excavation volume

Embankment volume

Asphalt

Foundation

Under-foundation

Width

Road

Tunnel

(m3)

(m)

Access road to power house- through Lordegan Road

542

660

159797

2000

946

2028

2028

8

Access road to dam crest- right bank

700

-

39000

2000

490

1050

1050

10

Access road to site and upstream cofferdam- right bank

988

-

25000

23000

-

1482

1482

7

Access road to dam crest-left bank

1667

-

110000

31000

1167

2501

2501

10

Access road from entrance bridge and outlet of diversion tunnel- left bank

881

-

49534

9480

-

1322

1322

10

 
 
Technical specifications of bridges
 
Bridge
عرض (متر)

طول دهانه‌ها (متر)

طول کل(متر)

نوع سازه

Upstream cofferdam

10

One mouth 60 m
One mouth 20 m

100

Plate

Downstream of power house

10

Two mouths 20 m
One mouth 40 m

100

Plate

 
Technical specifications of access tunnels
 
Name of the tunnel
Width (m)

Length (m)

Height (m)

Access tunnel to power house

11

660

8

Access roads and bridges
Complementary operations
In this regard no data exists.
Complementary operations

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