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oai:recercat.cat:2117/96302026-02-07T07:53:52Zcom_2072_1033col_2072_452950

Liquefaction potential of hydraulic fills Alonso Pérez de Agreda, Eduardo Gens Solé, Antonio Tarrago, Dani Madrid, Ricardo Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes Hydraulic filling Soil liquefaction Barcelona (Spain) -- Harbor Liquefaction Soft soil Hydraulic fill In-situ tests Sòls -- Liqüefacció Port de Barcelona A container terminal is under construction at the Port of Barcelona. The quay, 1.6 km long, is made of concrete caissons founded on granular rubble mounds. The natural soil is a sequence of normally consolidated fine-grained deltaic deposits that reach a thickness of over 60 m. The quay was backfilled with hydraulic fill dredged from the seabed soils in front of the caissons quay, deposited by a rainbowing technique. A failure of a section of the quay was attributed to the static liquefaction of the hydraulic fill. This failure prompted a field campaign to identify fill properties and its liquefaction potential. Standard and seismic CPTU´s and Marchetti dilatometer tests were performed as well as a programme of laboratory tests. Available indices to estimate liquefaction potential were calculated and compared. One of the relevant issues raised after the quay failure was the ability of preloading to eliminate the liquefaction potential of the fill. In situ tests were performed on the fill before and after a large scale preload test. Liquefaction indices at those two stages are compared showing, in some cases, a reduction of liquefaction potential after preloading. Peer Reviewed Postprint (published version) 2009 Conference report Alonso, E. [et al.]. Liquefaction potential of hydraulic fills. A: International Conference on Soil Mechanics and Geotechnical Engineering. "17th International Conference on Soil Mechanics and Geotechnical Engineering". Alexandria: IOS Press, 2009, p. 957-960. 978-1-60750-031-5 https://hdl.handle.net/2117/9630 10.3233/978-1-60750-031-5-957 eng Restricted access - publisher's policy 4 p. application/pdf IOS Press