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A study on one‐dimensional consolidation of layered structured soils
Author(s) -
Xie KangHe,
Xia ChangQing,
An Ran,
Ying HongWei,
Wu Hao
Publication year - 2016
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.2477
Subject(s) - consolidation (business) , compressibility , soil water , geotechnical engineering , dissipation , pore water pressure , permeability (electromagnetism) , materials science , mechanics , geology , thermodynamics , soil science , chemistry , physics , membrane , biochemistry , accounting , business
Summary The governing equations for one‐dimensional consolidation of layered structured soils under time‐dependent loading are established. Using simplified k‐σ ′ and m v ‐ σ ′ models, n ‐layered structured soils are transformed into ( n + 1) or ( n + 2)‐layered soils in which the thickness of upper and lower layers are gradually changing. The approximate solutions for the governing equations are then obtained under two types of boundary conditions, and the computer program is developed. Based on the solutions and computer program, the consolidation behavior of layered structured soils with soft interlayer is studied. It is shown that the permeability and compressibility of the soft interlayer have the greatest influences on the rate of settlement and rate of the dissipation of excess pore water pressure. Copyright © 2015 John Wiley & Sons, Ltd.