NATM tunnels

Author(s): 
Alejo Sfriso and Jorge Laiun
Category: 
Geotechnical

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; a NATM tunnel and three cavern stations are being built Read more... about Large Caverns for Metro Stations in Buenos Aires

Author(s): 
Alejo Sfriso and Jorge Laiún
Category: 
Geotechnical

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 Read more... about Fifteen years of experience with the estimation of structural loadings acting on temporary supports of tunnels in Buenos Aires

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