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Boundary element analysis of Biot consolidation in layered elastic soils
Author(s) -
Chiou YawJeng,
Chi ShueYeong
Publication year - 1994
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610180603
Subject(s) - biot number , consolidation (business) , geotechnical engineering , impervious surface , geology , soil water , stiffness , permeability (electromagnetism) , soil horizon , finite element method , boundary element method , settlement (finance) , materials science , soil science , mechanics , composite material , engineering , structural engineering , membrane , ecology , world wide web , computer science , genetics , biology , payment , business , accounting , physics
Biot's linear consolidation analysis of three‐dimensional fluid saturated layered soils is investigated. The time marching method, uncoupled boundary element method, and successive stiffness method are applied for the numerical modelling of this study. Settlement induced by surface loading and land subsidence due to pumping is studied. The results show that settlement induced by surface loading is mainly influenced by the properties of the soil layer, and that the settlement is larger for soil layers with smaller stiffness and greater thicknesses. The land subsidence induced by pumping is influenced by the properties of the soil layer as well as by the permeability of the pumped layer and the conditions at the top and bottom boundaries. The land subsidence is larger for soil layers with a smaller stiffness, lower permeability of the pumped layer, deeper pumping depth, larger pumping rate and an impervious top surface.