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Author(s): José Leitão Borges
Ricardo Pinto
Title: Analysis of the consolidation influence in a strutted excavation in soft soil reinforced with a jet grout base slab
Issue Date: 2010
Abstract: One possible solution to improve stability against bottom heave failure in strutted excavation insoft soils consists of extending the wall below the excavation base and, before excavation, constructing ajet-grout slab to support the wall below the excavation level. Using a computer code based on the finite elementmethod, the consolidation effect on a strutted excavation in soft soil reinforced with a base jet-grout slab isanalysed. The numerical model incorporates the Biot consolidation theory (coupled analysis) with soil constitutiverelations simulated by the p-q- critical state model. Special emphasis is given to the analysis, during andafter the construction period, of the pore pressures, stress levels and displacements in the ground, as well as strutcompression loads, wall displacements and bending moments, earth pressures on the wall faces and compressionloads and bending moments on the jet-grout slab.
Subject: Engenharia civil
Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Source: Geotechnical Challenges in Megacities, International Geotechnical Conference, ISSMGE, Moscow2010
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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