In June 1994 the Snohetta/Hamza consortium issued the tender enquiry documents for the Phase 1 foundation and ground engineering contract. The scope of works included the largest circular diaphragm wall ever constructed, 40m deep, 160m in diameter and continuously reinforced over a length of 620m.
Nine international contractors tendered for the US$55m package and the contract was awarded to the Italian/Egyptian joint venture of Rodio, Trevi and Arab Contractors, on 29 April 1995.
Construction of Phase 1 began on 15 May with a contract duration of 400 days extending to June 1996. The scope of work included construction of 600 double bell bottomed piles.
Excavation and dewatering within the circular diaphragm began shortly after its completion.
Waterproofing of the base of the site and the raft slab was brought forward from the Phase 2 superstructure package in order to reduce the overall duration of the complete project. This increased the costs of Phase 1 to $60m and produced a revised completion date of 31 December 1996.
Client: Egyptian Ministry of Education Architect: Snohetta Engineer: Hamza Associates Main contractor:
Rodio/Trevi/Arab Contractors joint venture