HYDRAULIC TUNNELS

 

POSITION

PROJECT NAME AND LOCATION

EMPLOYER

PROJECT VALUE IN THOUSANDS OF USD

CONSTR. PERIOD


DESCRIPTION OF WORKS

1)

Tunnel at Nikola Tesla Hydro power plant Vinodol, Croatia

Udružena elektroprivreda Hrvatske, Zagreb

16900

1948-1952

Hydraulic tunnels, intake tunnels 9 km of length, cross-section 7 m2. Full face excavation and with inclined shaft for pressure pipes and diversion tunnel 5 km long, cross-section 7 m2, full face excavation.

2)

Tunnel at Gojak Hydro power plant, Croatia

Udružena elektroprivreda Hrvatske, Zagreb

11400

1954-1959

Hydraulic tunnel 9.4 km long, clearance 4.5 m2, full face excavation.

3)

Tunnel at Split Hydro power plant, Croatia

Dalmatinske elektrane, Split

40500

1955-1962

Hydraulic tunnel 10 km of length, cross-section 15 m2, full face excavation.

4)

Tunnel at Senj Hydro power plant, Croatia

Zajednica elektroprivrednih poduzeća Hrvatske, Hidroelektrana Senj

103500

1963-1965

Hydraulic tunnel 9.2 km long, cross-section 18 m2 and a tunnel 13.5 km of length, cross-section 20 m2, full face excavation.

5)

Tunnel at Rijeka Hydro power plant, Croatia

Elektroprivreda Zagreb

910

1964-1968

Hydraulic inclined tunnel 800 m long, cross-section 5 m2, full face excavation.

6)

Orlovac Hydro Power Plant, Livno, Croatia

Elektroprivreda Dalamcije, Split

55600

1968-1972

Hydraulic tunnel 12 km long, cross-section 24 m2, full face excavation.

7)

Sklope Hydro Power Plant, Croatia

Združeno poduzeće elektroprivrednih organizacija, Rijeka

 

1968-1970

HPP Sklope, rated power 25 MW, Kruščica storage reservoir, Sklope earth dam 77 m high, head race, intake structure.

8)

Kremasta Tunnel, Greece

Electric Power Industry of Greece

4500

1974-1975

Hydraulic tunnel 1 km long, cross- ection 15 m2, full face excavation.

9)

Konavosko Polje Tunnel, Dubrovnik, Croatia

Kombinat Konavosko polje, Konavle, Dubrovnik

9600

1975-1977

Hydraulic tunnel, reconstruction works, length 2 km, cross-section20 m2.

10)

Obrovac Tunnel, Obrovac, Croatia

Elektroprivreda Dalamacije, Split

200000

1979-1983

Hydraulic tunnel for pressure pipes, length 8.1 km, cross-section22 m2, full face excavation.

11)

Sidi Yacoub Dam, Algeria

Ministere de l' Hydraulique d' Algerie, Algeria

124000

1981-1985

An earth dam construction in the Ardjem River canyon. The irrigation complex consists of an storage reservoair of 280,000,000 cu.m. The Ardjem River diversion was solved by a 444 m long tunnel, clearance 8 m, bottom outlet of a 2.5 m clearance. A water intake with the bottom outlet intake structure and a control building, located at the dam slope. The overflow system is of a well type, consisting of a vertical shaft, a tunnel of 10 m clearance and a chute and a ski jump. The dam height is 95 m.
Main quantities of work :

 

 

 

 

 

excavation                   540,000 m3

 

 

 

 

 

tunnel excavation          94,000 m3

 

 

 

 

 

total amount placed in dam body: 3,690,000 m3

 

 

 

 

 

concrete                        76,000 m3.

12)

Črnec Polje Regulation Works Sisak, Croatia

OVP-OOUR Water Mangement of Sisak, Sisak

 

1983-1984

An irrigation system with main canals 51 km of lenght, 3 pumping stations and other associate structures. Levelling earthworks and platform work.
Excavation: 1,150,000 m3

 

 

 

 

 

Fill: 645,000 m3

 

 

 

 

 

Concrete: 22,000 m3

13)

Tunnel For Water Supply System of the city of Algeries, Algeria

Ministre des travaux Republics Algerie

92000

1983-1986

A hydraulic tunnel 1,800 m long, cross-section 6 sq. m, a hydraulic tunnel 405 m of length, cross-section 11.57 sq.m. Full section excavation

14)

Tunnel For Water Supply System of MINA, Algeria

Ministre des travaux Republics Algerie

6000

1984-1989

A hydraulic tunnel 1,2 km of length and 32 sq.m. of cross-section

15)

Chiffa Harbil Hydraulic Tunnels, Medea, Algeria

Ministre de l'hidraulique et de l'environement et des forets. Direction generale des infrastructure hydraulique, Wilaya Medea, algerie

34160

1984-1990

Two water tunnels in total lenght of 17 km, 7,5 sq.m. cross-section. The tunnel driving was performed by New Austrian Method. The Harbil Tunnel was completed in 1988 and the Chiffa Tunnel in 1990.