Analytical Solutions for Determining Vertical Air Permeability in Unsaturated Soils

1995 ◽  
Vol 31 (9) ◽  
pp. 2193-2200 ◽  
Author(s):  
Chao Shan
Keyword(s):  
Analytical Solutions ◽  
Unsaturated Soils ◽  
Air Permeability

A flexible wall permeameter for measurements of water and air coefficients of permeability of residual soils

2003 ◽  
Vol 40 (3) ◽  
pp. 559-574 ◽  
Author(s):  
Agus Setianto Samingan ◽  
Eng-Choon Leong ◽  
Harianto Rahardjo
Keyword(s):  
Flow Rate ◽  
Unsaturated Soils ◽  
Temperature Fluctuations ◽  
Air Permeability ◽  
Matric Suction ◽  
Residual Soils ◽  
Volume Changes ◽  
Flexible Wall ◽  
Drying And Wetting Cycles ◽  
Suction Flow

This paper describes the development of a flexible wall permeameter apparatus for measuring the water and air coefficients of permeability of residual soils. Water and air coefficients of permeability were obtained for both the drying and wetting cycles for residual soils using the flexible wall permeameter. Volume changes of the soil specimens during unsaturated consolidation and during the water and air permeability measurements were also monitored. Factors that influence the measurements, such as hydraulic and pneumatic gradients and temperature fluctuations are described and discussed in this paper. The developed flexible wall permeameter was found to be capable of measuring water and air coefficients of permeability as low as 10–12 m/s.Key words: flexible wall permeameter, permeability, residual soils, unsaturated soils, matric suction, flow rate.

scholarly journals Semi-analytical solutions to one-dimensional electro-osmotic consolidation in unsaturated soils

2020 ◽  
Vol 8 (4) ◽  
pp. 102-108
Author(s):  
Liujiang Wang ◽  
Penghua Huang ◽  
Yaoming Wang ◽  
Sihong Liu
Keyword(s):  
Analytical Solutions ◽  
Unsaturated Soils ◽  
One Dimensional
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