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PRACA ORYGINALNA
Impact of effective stress and temperature on the hydraulic permeability of soils
 
Więcej
Ukryj
1
Department of Civil Engineering, College of Engineering, University of Babylon, Iraq
 
2
Formerly of Geomechanics and Geotechnics, Kiel University, Germany
 
3
Department of Environmental Engineering, College of Engineering, Babylon University, Iraq
 
 
Data nadesłania: 08-01-2026
 
 
Data ostatniej rewizji: 28-01-2026
 
 
Data akceptacji: 28-01-2026
 
 
Data publikacji: 01-04-2026
 
 
Autor do korespondencji
Ahmed Al-Janabi   

Department of Civil Engineering, College of Engineering, University of Babylon, Babylon 51001, Iraq
 
 
Acta Sci. Pol. Formatio Circumiectus 2026;25(1):45-53
 
INFORMACJE KLUCZOWE
  • Focus: stress/temperature effects on hydraulic permeability (k) of compacted soils
  • Soils Tested: Two glacial tills (N. Germany), one loess (Azerbaijan)
  • Methods: Heating chamber with constant head permeameter
  • Temperature Effect k increases with temperature due to reduced pore-water viscosity
  • Stress Effect: k decreases with higher cell pressure from void reduction
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
Aim of the study:
Heavily compacted soils are often used as engineering barriers for the disposal of high-level industrial waste subjected to thermo-hydro-mechanical actions, such as heat dissipation. This study examines the impact of stress and temperature on the hydraulic permeability (k) of three different soil types: two types of glacial till soils from northern Germany and a loess soil from Azerbaijan.

Material and methods:
A heating chamber containing a constant head permeameter measuring apparatus was used in the laboratory. The effects of four isotropic cell pressures (100, 200, 250, 300 kPa) on effective stress were tested, as were the effects of four temperatures (20, 30, 40, 50°C) on permeability.

Results and conclusions:
Hydraulic permeability (k) is proportional to temperature due to the reduced viscosity of pore water upon heating. Conversely, (k) decreases with increasing cell pressure (effective stress), which is caused by a reduction in soil voids under extra confinement.
ISSN:1644-0765
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