The Buenos Aires Metro consists of six underground lines -A, B, C, D, E and H- that extend for approximately 63 km within the “Pampeano Formation” and have 90 operating stations. The subway authorities (SBASE S.A) have decided to increase the interconnection capacity between lines B, C and D through an Accessibility Plan called PACE Sarmiento, which has been made up of three phases. Phase II is currently being finished.
The first stage of the first phase of the expansion program consists in the construction of a shallow tunnel executed in fill-soft soil and the objective is to make the connection between the lines C and D, which are located in the center of the city. The second stage consists in the construction of a building with an access that overlies the Line C station and aims to interconnect the three line stations at surface.
The following presentation shows the development of the work done in stages I and II of the first phase of the extension program, where SRK Argentina has carried out geotechnical and structural engineering at an executive level without interrupting the normal operation of the metro at any time.
