EPBM chosen for Chalco Valley project
21 July 2014A giant canal tunnel will be built using an EPB tunnelling machine in Mexico¹s Chalco Valley over the next three years, following the contract being awarded earlier this year to Mexico-based construction company, Empresas ICA.
The 7.9km, 5m diameter tunnel will run parallel to the General Canal, from the Parada del Toro pumping station to the La Caldera pumping station. The project, which will use an EPB machine for the excavation, includes fabrication and installation of the pre-cast concrete segmental lining, installation of the finish lining and covering, and construction of four 12m diameter drop shafts, with an average depth of 25m each.
The works will be executed over three years and are an integral part of Conagua's long-term plans to help reduce the risk of seasonal flooding within the Chalco Valley.
Empresas ICA secured the USD 860,000 contract from the national water commission, Conagua, to construct the General Canal Tunnel in the Chalco Valley, Mexico.
