Títol:
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Design of jet-grouting for tunnel waterproofing
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Autor/a:
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Arroyo Alvarez de Toledo, Marcos; Gens Solé, Antonio; Croce, Paolo; Modoni, Giuseppe
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Altres autors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
Abstract:
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A case history in Barcelona is described where a tunnel was excavated by traditional methods below an active railway line through a formation with lenses of water-bearing granular material. To avoid the possibility of sudden collapses a massive jet-grout treatment was applied. The treatment took several forms. Subvertical double and triple-fluid injection was applied whenever possible. Sub-horizontal monofluid canopies
and slabs executed from within the tunnel were however required in zones where no vertical access was possible. This communication focuses on the later type of treatments and gives an overview of the design tools that were applied. These comprised the execution of several large trial fields and the systematic application
of a probabilistic framework for design. |
Matèries:
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions -Tunnels--Spain--Barcelona -Túnels ferroviaris -- Catalunya -- Barcelona (Àrea metropolitana) |
Drets:
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Tipus de document:
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Article - Versió publicada Objecte de conferència |
Publicat per:
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CRC Press/Balkema
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Compartir:
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