Hydric Resources


Tunnel of Covão – Madeira

Tunnel of 5,172 m, net gauge of 6.1 m2 and with a storage capacity of 32,000 m3.excavated by a tunnel boring machine (TBM), to store and convey water. The minimum covering is greater than 26m.

CHARACTERISTICS

Client: EEM – Empresa de Electricidade da Madeira, S.A. / Spie Batignoles Europe
Completion period: 14 months

Length: 5,172 m
Net gauge: 6.1 m2
Storage capacity: 32,000 m3

 Details

Odelouca Tunnel - Funcho

Tunnel of 8,110 m and 3 m in diameter to transfer water between the dams of Odelouca and of Arade with independent water intakes.

CHARACTERISTICS

Client: INAG – Instituto da Água
Completion period: 17 months

Tunnel
Length: 8,110 m
Total diameter: 3 m
Net diameter: 2.4 m
Traditional excavation: 147 m
Excavation with Tunnelling Machine: 7,963 m
Excavation completion period: 13.8 months
Daily average: 27.55 m
Best month: 1,062 m
Best day: 98.4 m

Support
Swellex Mn12 rock bolting: 14,200 un.
Electro-welded mesh AQ50: 18,000 m2
UNP 160 steel ribs: 150 units
Shotcrete: 550 m3

 Details

Hydroelectric Power Plant of Túneis - Azores

Construction of four weirs in gabions and plunge basin. Refurbishment and automation of the complex.

CHARACTERISTICS

Client: EEG – Empresa de Electricidade e Gás, Lda.
Completion period: 17 months

 Details

Álamos Channel - Loureiro

Channel 10,305 m long for transferring irrigation water with trapezoidal, rectangular and siphon channels.

CHARACTERISTICS

Client: EDIA – Empresa de Desenvolvimento e Infra-estruturas do Alqueva, S.A.
Completion period: 25 months

 Details

Vale Madeiro Dam

Dam for an irrigation system in mixed backfill of a cross-section profile, dam wall of 2.8H/1V upstream and 2H/1V downstream with a capacity of 1,509,000 m3.

CHARACTERISTICS

Client: DRATM – Direção Regional de Agricultura de Trás-os-Montes
Completion period: 22 months

Height above the foundation: 31.33 m
Height above the natural land: 29.60 m
Crest height: 294.50 m
Crest length: 186.30 m
Crest width: 7 m
Backfill volume: 221,000 m3
Flooded area at full storage level: 183,000 m2
Total capacity: 1,509,000 m3
Net capacity: 1,335,000 m3
Full storage level: 291 m
Maximum flood level: 293 m
Minimum operation level: 293 m

 Details

Construction of the Irrigation Network - Vale Madeiro

Installation of the primary pipeline in a length of 8.6 km, fed by the dam of Vale Madeiro. Secondary irrigation network 13 km in length, 148 hydrants equipped with 236 irrigation points DN 65, 25 points DN 100 and 2 of DN 150 with flow regulator.

PEAD pipes butt welded and connection accessories in cast iron with flanged connections.

Installation of a filtering station in the connection to the dam with 3 automatic filters of 125 microns and Ø 14” outlet with a capacity of 1,728 m³/h.

The installation serves a 243-ha irrigation area.

CHARACTERISTICS

Client: DRATM – Direção Regional de Agricultura de Trás-os-Montes
Completion period: 12 months


Primary Supply Pipe: 8,600 m
Secondary Irrigation Network: 13,000 m
Irrigation Area: 243 ha

 Details

Irrigation and Drainage Network, Pumping Station and Conveyance Line for the North Block – Vale da Vilariça

The primary conveyance pipeline is about 12 km long and is supplied by three dams (Salgueiro, Burga and Santa Justa). Supply and installation of 3 Filtering stations at the start of the dam connections, one of which is the largest installed in Portugal until now, with a capacity of 4,300m³/h and 2 others with a capacity of 1,425m³/h each. The secondary network is 26.5 km long, has 220 Bermad hydrants, equipped with 509 irrigation points DN56, with a flow regulator, pressure reducers and water meter

CHARACTERISTICS

Client: DRATM – Direção Regional de Agricultura de Trás-os-Montes
Completion period: 20 months


Primary Conveyance Pipe: 12,600 m
Secondary Irrigation Network: 26,500 m
Hydrants: 220 Bermad
Irrigation Points: 509 DN65

 

 Details

Irrigation of the South Block of the Hydro-agricultural System of Vale da Vilariça

Construction of the 31.5-km irrigation network, in PEAD and PVC piping. Main pipeline with diameters between 125 and 900 mm, in a length of 10,922 m. Network of secondary and tertiary pipelines with diameters between 125 and 500 mm, in a length of 20,608 m. Building (by dredging) of the Rio Sabor crossing, in PEAD DN 315 mm piping in a length of about 120 meters. Supply and installation of a total filtering station, equipped with sand filters and screen filters, for a 3,941 m3/h flow and for 125-micron filtering. Supply and installation of network accessories and operation and safety parts. Installation of 167 hydrants and 305 irrigation points.

CHARACTERISTICS

Client: DRATM - Direcção Regional de Agricultura de Trás-os-Montes
Completion period: 20 months


Main Pipeline: 10,922 m
Secondary and Tertiary Pipelines: 20,608 m
Sabor River crossing: PEAD DN 315 mm - 120 m
Filtering Station: flow of 3,941 m³/h of 125 microns
Hydrants: 167
Irrigation Points: 305

 Details