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Experimental Research on Variation of Pore Water Pressure in Constant Rate of Strain Consolidation Test

H. Ahmadi ; H. Rahimi ; A. Soroush ; Claes Alén (Institutionen för bygg- och miljöteknik, Geologi och geoteknik)
Acta Geotechnica Slovenica (1854-0171). Vol. 11 (2014), 2, p. 46-57.
[Artikel, refereegranskad vetenskaplig]

Constant rate of strain (CRS) consolidation is a rapid test method which is used for determination of compressibility of clayey soils. In a CRS test, the appropriate strain rate is selected based on pore water pressure ratio, i.e. the ratio of pore pressure to total stress. In the present study, to investigate the effect of strain rate on variation of pore water pressure ratio, four different clay samples of different plasticity were tested by CRS apparatus. The results of the experiments showed that the trend of variation of pore water pressure is dependent on the drained water flow regime which may be either Darcy or non-Darcy. The results also indicated that the plasticity of clay does not have considerable effect on variation of pore water pressure.

Nyckelord: constant rate of strain, consolidation, pore water pressure ratio, soil plasticity, Darcy and non-Darcy flow



Denna post skapades 2015-02-02.
CPL Pubid: 211858

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Geologi och geoteknik (2005-2017)

Ämnesområden

Geologi
Geofysisk teknik

Chalmers infrastruktur