16 km portion of the Safranbolu-Bartın highway is constructed and there exist,
530.000 m3 earth fill,
225.000 m3 rock excavation,
575.000 m3 excavation and a lot of road structures.
In this construction,
3 moto-scrapers,
2 scrapers,
4 D8 bulldozers,
20 dump trucks,
2 pairs of sheep foot rollers and
2 vibrating cylinders
are used as the construction machinery.
The highway is constructed in 5,5 months on a steep, mountainous and woodland country.
Ankara - Gökçekaya 380 kv Transmisson Line
Installation of transmission lines are in our field of activities, too. 80 km part of 380 kV transmission line between Ankara -Gökçekaya, including the manufacture the towers, are installed and completed.
Maraş - Narlıova 2nd Phrase Irrigation Project
The construction of the Maraş-Narlıova 2nd phase irrigation project is accomplished between 1968 -1971. This project includes the construction of 310.336 m channel, 1.000 m tunnel, 850 m inclined drop, 600 m gallery, 348 m viaduct, 100 m siphon and the construction of 1.118 ea. canal structures. The main phases and the corresponding lengths of construction of 310.336 m channel construction is given below.
The construction of the irrigation project of Maraş Narlıova is accomplished under quite difficult circumstances, because the country is quite steep and mountainous and also the large portion of the area was swamp (historical Mizmilli swamp).
Antalya Airport
The main features of successfully completed Antalya Airport construction is as follows:
1. The Owner
Ministry of Public Works, General Directorate for Construction of Airports and Oil Supply Facilities
2. Date of bid award
23 January, 1973
3. Date of completion
15 May, 1977
4. Main work items
a. Runway
3.400 m x 45 m x 0,40 m
b. Apron
450 m x 225 m x 0,40 m
c. Taxi route no. I
168 m x 22,5 m x 0,40 m
d. Taxi route no. II
281,5 m x 22,5 m x 0,40 m
e. Taxi route no. III
68 m x 22,5 m x 0,40 m
f. Access and service Roads
approx. 50 km
5. Quantities of main works performed:
a. Total earth moving
1.500.000 m2
b. Total concrete works
300.000 m2
c. Cement used
50.000 ton
d. Fencing
approx. 10 km
Atatürk (Yeşilköy) Airport
Brief informations concerning the Istanbul-Atatürk Airport (former name Yeşilköy) construction:
1. The Owner
Ministry of Public Works, General Directorate for Construction of Airports and Oil Supply Facilities
2. Date of bid award
19 January, 1977
3. Date of completion
15 June, 1980
4. Main work items
a. Runway
2.300mx 60m x0,35 m
b. Cargo apron
150 m x 100 m x 0,35 m
c. Taxiways and connections
1.500 m x 22,50 m x 0,35 m
d. Ducts for electric cables
10.000 m
e. Drainage system
The whole area
5. Quantities of main works:
a. Total earth moving
1.000.000 m3
b. Total concrete works
235.000 m2
c. Asphalt pavement
9.850 ton
d. Cement used
30.000 ton
e. Lean concrete
24.500 m3
The project involved 2,50 m selected borrow fill, 90 cm thick crushed stone as sub-base and base material and 35 cm of Concrete pavement. Quarry materials were brought form quarries 25 km far to site and crushed at size through a crushing plant, designed and manufactured by ERG. A 100 m3/h capacity batching and mixing plant, also manufacture of ERG, was used for concrete works. Aggregate for concrete was produced through the crushing-screening and washing plants, manufactured by ERG, and sea sand was used. Similar earth moving machinery and equipment, spreader-finisher, joint cutters and joint fillers used at Antalya Airport were also utilized at Yeşilköy.
Kars Airport
Brief informations concerning the construction of Kars Airport and infrastructural works:
1. The Owner
Ministry of Public Works, General Directorate for Construction of Airports and Oil Supply Facilities
2. Date of bid award
10 February, 1977
3. Date of completion
6 September, 1981
4. Annual working period
4.5 months
5. Main work items:
a. Runway
3.500 m x 45 m x 0,35 m
b. Apron
130 m x 76 m x 0,35 m
c. Service roads
15 km
d. Ducts for electrical cables
10.000 m
e. Drainage system
approx. 10 km
6. Quantities of main works:
a. Excavation
1.000.000 m3
b. Embankment
355.000 m3
c. Total concrete works
175.000 m2
d. Cement used
30.000 ton
Karakoçan Dam
The Karakoçan dam have been constructed for DSİ in Karakoçan district of Elazığ province including the manufacturing of penstock, valves, gates and other installations.
Purpose
Irrigation
Dam Type
Earthfill
Dam Height
34 m
Crest Length
442 m
Volume of Body
1.037.000 m3
Length of Penstock
345 m
Penstock Diameter
2,50 m
Geologic Form
Agglomerate
Volume of Reservoir
12.500.000 m3
Volume of Irrigation
1.200 H
The river had been taken to a conduit and after construction, penstock had been placed to the same conduit. 28.000 m3 rock excavation had been done for the construction of spillway. The main body of dam consists of 1.400.000 m3 earth fill.
Cross-section and general situation of the dam is given which consist of various layers. In the cross-section, impervious clay core, semi-impervious layers at both sides of core, followed by pervious shells, stability fill, filter fill and filling for losses can be observed with different colours. On the general layout plan, one can see the places of dam, penstock, irrigation pipes, reservoir and spillway.
Tercan Dam
The scope of construction of dam mainly consists of 2.400.000 m3 filling of various layers, 50.000 m3 concrete which is used for the spillway, power plant building, intake structure and shaft. Also it includes the manufacturing of penstock, valves, gates and trashracks which mean 1.000 tons of manufacturing.
Because of the existence of pervious alluvial around the core of dam, it was difficult to prevent the water seepage to the 24 m deep dam base, in order to place a clay core. It is being very difficult to overcome the seepage of 600 m3/sec water by pumps, as a measure an injection curtain was formed in the alluvium on upstream side. This way the seepage of water was reduced to 250 m3/sec.
Çatalan Dam and HEPP
Çatalan Dam and Hydro Electric Power Plant is located on Seyhan River at about 1 km. downstream of Çatalan Town. It is being constructed for power generation, irrigation and for flood control with an installed capacity of 3 x 65 MW power generation. The dam is of gravity fill type with a volume of 17,5 x 106 m3 earth filling, and the spillway is located on right side of the dam. Crest length and width are 894 m and 12 m respectively. The crest is 130 m in elevation and height of the dam from the foundation is 82 m. There are 2 diversion tunnels located on left side with dimensions of 8,50 m in diameter and 1.777,34 m in length. The annual total power generation of the dam is about 570,10 Gwh.
Karakaya Dam and HEPP
Owner
State Hydraulic Works (DSİ) - TURKEY
Location
South East of Turkey, on Fırat River
Contractor
J.V. Italstrade Torno - ERG for Karakaya
Contract Value
U.S. $ 600 x 106 (Civil works only)
Reservoir
Volume
9,58 x 109 m3
Active volume
5,58 x 109 m3
Maximum elevation
693 m
Area
29.800 ha.
Tributary area
80 km2
Length
166 km
Dam
Type
Arch gravity
Height
173 m from foundation
Crest elevation
698 m
Crest length
462 m
Concrete volume
2 x 106 m3
Spillway
Crest overstop, 10 ea. 17.100 m3/sec discharge
Diversion Tunnels
2 x 11,50 m diameter, circular, 3.500 m3/sec capacity
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.
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.
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.
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.
Bayram and Bağlık Dams and Hydroelectric Power Plants (HEPP) are energy purpose integrated dams and they are located in northeast region of Turkey on Çoruh River basin Berta tributary, on the State road connecting Artvin Province Center to Ardahan Province center.
The average annual flow of Berta river is about 606x106 m3 (19,20 m3/sec), at Bayram dam site and 786x106 m3 (24,90 m3/sec) at Bağlık dam site.
Bayram Dam is Rock fill dam with impervious core and will produce 265 GWh energy annually. Bayram dam will feed Bağlık dam at its downstream by means of a tailrace tunnel of 7.990 m long. Bağlık Dam will be constructed as concrete gravity dam and will produce 238 GWh energy using the water supplied from Bayram reservoir.
The Sivas-Kangal Thermal Power Plant is constructed at 25 km from Kangal Town of Sivas and 2 km from lignite coal mines. The Power Plant has been planned to have an installed capacity of 2 x 150 MW at the initial stage and to be extended later to 4 x 150 MW.
“The construction of Coal Preparation, Transportation and Ash Disposal“ works has been undertaken on turnkey basis together with the partners. The work covers 11.000 tons of fabrication of steel constructions and machines together with their transportation, inland transportation of imported materials and equipments, assembling of all 16.000 tons of materials imported or locally fabricated and all civil construction works.
Within the scope of local fabrications are included the total of 12 transfer towers and 50% of 7 mobile equipments consisting of 5 "reclaimers-stackers", 1 stacker and 1 "tripper car". In addition (2x3.500 m) 7.000 m of conveyor line is also included in this scope. 1.900.000 m3 rock excavation 500.000 m3 fill, 49.000 m3 concrete, 2.600 tons of steel and 450.000 m3 crushed stone are included within the scope of civil constructions. Total of the works were completed at the end of 1989.
Bingöl - Karlıova Thermal Power Plant
The 1 x 60 MW thermal power plant to be constructed near the town Karlıova 45 kms from Bingöl will be the first one in Turkey from the stand points that it will be built by a consortium under the leadership of a Turkish Company, ERG and further for the first time it will be an integrated project including the development of the coal mine and extraction of coal as well, where it will be built on turn-key basis with 100% credit financing and from the total works over 60% will be executed by the local partner and leader company ERG.
Consortium consists of Waagner-Biro (Austria) to supply the general engineering services, the boiler and its accessories, AEG-Austria and AEG-ETI together to supply and erect the electricals, Skodaexport (Czechoslovakia) to supply the turbine-generator and its accessories, local partner and the leader ERG to supply about 60% from the total fabrications, 100% of civil constructions, erections including erection of turbine generator, inland transportations and local materials and services.
In order to feed this plant with local coal at site all the necessary works are under-taken by an other consortium again under the leadership of ERG wherein VEMB GmbH (Germany) is a consortium partner.
Afşin - Elbistan Thermal Power Plant
ERG-VERBUND Elektrik Üretim Şirketi where ERG is the major shareholder, desired to refurbish, desulfurization and construct additional two units to AFŞİN/ELBİSTAN power plant which is the Turkey's largest power plant with capacity of 4 x 344 MW. The scope and objective is take over the existing former power station AFŞİN-ELBİSTAN, together with the coal mine, from the Republic Of Turkey in order to modernize, extend and operate the facility for 20 years.
After this period, the power plant will be returned as an efficiency-enhanced plant operating at full capacity and generating a consistent, maximum output.
TECHNICAL DATAS
Number of units
4
Maximum power output per unit
344 MW
Fuel
Lignite Hu 1.100 kcal/kg
Fuel consumption / scheduled
18 million tons of lignite/year
STEAM DATA (fuel load)
Live steam
1.020 t/h, 535”C, 195 bar
Reheated steam
920 t/h, 535”C, 40 bar
TURBINE
1 HP-turbine
1 IP-turbine and 1 double flow LP-turbine
GENERATOR
3.000 rpm
50 Hz frequency H2 – cooling
MAIN TRANSFORMER
4 of 400 MVA each
One transformer for 3 phases
MAIN COOLING WATER SYSTEM
4 cooling towers, natural draught
According to the latest investigations, the brown coal deposits in the AFŞİN-ELBİSTAN area amount to a total of 3.2 billion tons. Thanks to new technologies it will be possible to economically mine 1.8 billon tons in open cast mining operations. The overall deposit spreads out over an area of 120 km2. There are three brown coal deposits suitable for mining within this region. The first of these three deposits is Kışlaköy. Kışlaköy currently supplies the AFŞİN-ELBİSTAN power plant delivering an output of 4 x 344 MW. The total deposits of the Kışlaköy area contain 600 million tons of brown coal suitable for mining.
The brown coal of all three deposit areas will yield a combined thermal value of approximately 1.100 kcal/kg. These deposits contain 44% ash and 56% moisture.
The plant is designed to use low calorie brown coal continuously and safely producing electrical energy without using natural gas or fuel-oil. As an integrated plant with 4 units, the power station and the coal mine will be operated at full output. During peak operations it will be possible to mine an annual 30 million tons of coal and transport approximately 75 million m3 of ash material to the slag heaps.
