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