This paper presents the preliminary results of a numerical study on multi-propped walls retaining deep excavations. The study is based on the comparison between the results obtained by FEM (Plaxis) using the non linear Hardening Soil model and by the Subgrade Reaction Method, considering different wall/soil stiffness, excavation depth and prop spacing conditions. A tentative relation, "calibrated" vs FEM results, is proposed for deriving the coefficient of subgrade reaction Kh for design of multi-propped diaphragm walls from the constrained modulus M from DMT.
Evaluation of the coefficient of subgrade reaction for design of multi-propped diaphragm walls from DMT moduli
MONACO, Paola
;
2004-01-01
Abstract
This paper presents the preliminary results of a numerical study on multi-propped walls retaining deep excavations. The study is based on the comparison between the results obtained by FEM (Plaxis) using the non linear Hardening Soil model and by the Subgrade Reaction Method, considering different wall/soil stiffness, excavation depth and prop spacing conditions. A tentative relation, "calibrated" vs FEM results, is proposed for deriving the coefficient of subgrade reaction Kh for design of multi-propped diaphragm walls from the constrained modulus M from DMT.File in questo prodotto:
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