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El-Salam
Syphon under Suez Canal
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El-Salam
syphon was constructed in order to pass irrigation water
underneath the Suez Canal to Sinai for the purpose of land
reclamation and full development of the peninsula.
The
syphon consists of four parallel tunnels, 775 m long each. One
6.56 diameter bentonite slurry TBM was used to advance the four
tunnels. The tunnels were provided with two linings with a
waterproofing membrane in between. The primary lining consisted of
solid precast reinforced concrete segments, 30 cm thick. The
secondary lining was a 32 cm thick cast in place plain concrete.
The function of the primary lining was to enable the unreinforced
secondary lining to be constructed in a safe and dry environment.
The secondary lining was designed to carry the full overburden and
hydrostatic pressures.
Construction
of the first tunnel started in 1995 and the syphon was inaugurated
in 1997. |
