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Title:
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Soil movements associated with compensation grouting during line 9 excavation in Barcelona: a case study
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Author:
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Mariano, Alessandra di; Gens Solé, Antonio; Mair, Robert
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Other authors:
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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 |
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Abstract:
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The paper describes a case history -related to the Line 9 excavation in Barcelonawhere
compensation grouting was initially proposed to minimize the movements of the buildings close to or directly above the tunnel alignment, some of which have piled foundations. Unexpectedly, the ground settlements due to the pre-conditioning stage of the compensation grouting became very significant leading to some light damage to one of the buildings. Eventually, the decision was taken to stop the treatment. Grouting-induced displacements are compared to the movements produced by tunnelling that were very limited. The paper concludes with some considerations concerning the suitability of ground treatment in the context of carefully executed tunnelling operations. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Túnels i excavacions
-Tunnels--Spain--Barcelona
-Case history
-tunnels
-EPB excavation
-soil-structure interaction
-grouting
-field instrumentation
-Túnels -- Catalunya -- Barcelona |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Aedificatio
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