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List of products by author: J. G. Laiún
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Accessibility, Circulation and Evacuation Plan Phase 1
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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Fifteen years of experience with the estimation of structural loadings acting on temporary supports of...
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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Large Caverns for Metro Stations in Buenos Aires
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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