Phase 4A of the Cairo Metro public works contract was won by a Franco-Egyptian joint venture composed of Vinci Construction Grands Projets, Bouygues Travaux Publics, an Arab Contractor and Orascom Industries. On 27.10.2016, after 199 days and 1811 m of continuous excavation in Cairo’s subsoil, the TBM arrived at the Alf Maskan station. It has now completed 40% of phase 4A.The next part of phase 4A involves the excavation of a new tunnel between Haroun and the future stations El Nozha 1 and 2. The TBM achieved a speed record with a progress of 28.2 m/day and the laying of 19 precast rings. The excavation has been carried out in 4 different subsoils, including two layers of sand and one layer of clay. Phase 4B the public works contract was secured by an Egyptian joint venture formed by an Arab Contractor and Orascom Industries. Click here for Cairo’s metro map and eg/12 for tunnelbuilder archive. For further information please visit http://www.nat.org.eg/english/phase3line3.html and https://www.systra.com. 48/16.
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