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Consolidation around a heat source buried deep in a porous thermoelastic medium with anisotropic flow properties
Author(s) -
Savvidou C.,
Booker J. R.
Publication year - 1989
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.1610130107
Subject(s) - pore water pressure , consolidation (business) , geotechnical engineering , porous medium , permeability (electromagnetism) , isotropy , thermoelastic damping , anisotropy , porosity , materials science , mechanics , geology , thermal , thermodynamics , chemistry , biochemistry , physics , accounting , quantum mechanics , membrane , business
A solution is derived for the heat flow and consolidation which occur when a heat source is buried deep in a porous thermoelastic soil having anisotropic flow properties. This solution is used to examine the pore pressure generation and dissipation near both point and cylindrical heat sources. An increase in temperature will tend to generate an increase in excess pore pressure. However, the pore water will tend to flow from regions of high excess pore pressure to regions of low excess pore pressure, and so consolidation will occur, and temperature‐generated excess pore pressures will tend to dissipate. Many natural soils exhibit horizontal layering and so have a higher horizontal than vertical permeability. It is shown that in soils the excess pore pressure generated by a heat source is significantly less than that in an isotropic soil having an equal vertical permeability.