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List of products by author: J. G. Laiún

Showing 1 - 3 of 3 documents
  • Abstract: The Buenos Aires Metro consist of six lines -A, B, C, D, E and H- that extend approximately 63 km underground and have 90 operational stations. The subway authorities decided to increase the interconnection capacity between lines B, C and D. This paper focuses on stages I and II of the first phase of the extension program, which involve: the construction of a shallow tunnel on soft soil that...

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    Abstract: In 1998, shotcrete was used for the temporary support of a subway tunnel for the first time in Buenos Aires. The first author, consultant for the contractor, had developed a semiempirical method for the estimation of the structural support loads and used it to design the tunnel. The second author performed FEM models of the same tunnel and studied the effect of various variables,...

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    Abstract: Buenos Aires Metro Line H, in Argentina runs N-S, at the west side of the city's downtown area. An extension of the line started in 2011. A TBM tunnel and one cut&cover station will be built southbound in estuary soft holocene soils; CTM (conventional tunneling method) tunnel and three cavern stations are being built northbound in stiff cemented silts and clays. The...

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Showing 1 - 3 of 3 documents