Gracias a raulml
Peter Kenyon, TunnelTalk
A request for qualifiers is issued by Peru for the concession to finance, design, build and operate Line 2, and part of the future Line 4 airport extension, of the Lima Metro.
Line 2 will establish for the first time in Peru's capital city, an underground connection between the district of Ate Vitarte in the east and the port of Callao in the west. The total distance of 27km includes an interconnection with the existing Metro Line 1 at Lima Central Station (Fig 1).
Project scope also includes an 8km alignment of what will eventually be Line 4, which will link Line 2 to Jorge Chavez international airport. All 35km is confirmed as underground, with TBM excavation and segmental linings selected in initial feasibility studies as the preferred tunnelling method. The project also includes construction of 35 mostly cut-and-cover stations.
Total cost is estimated at US$5.4 billion, nearly US$3 billion of which will be for civil construction.
At present, a 21.5km-long section of Line 1 is complete. Built mostly as an elevated structure between Villa El Salvador and Avenida Grau, Line 1 services began commercial operations in 2011.
Construction of a US$600 million 12.5km Line 1 extension to San Juan de Lurigancho started in April 2012. Work is being carried out by Brazilian constructor Odebrecht and Peru's Graña y Montero, which also completed the first stretch of Line 1 at a cost of US$410 million. The Line 1 extension is due for completion in December 2013.
The masterplan for the Lima Metro is for five lines and a total length of 133km (Fig 2).