Eksperimentalna raziskava variiranja pritiska porne vode s konsolidacijskim testom pri konstantnih specifičnih deformacijah

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.Konsolidacija pri konstantnih specifičnih deformacijah je preiskava, ki se uporablja za hitro določanje stisljivosti glinenih zemljin. Pri preiskavi se izbere primerno stopnjo specifične deformacije glede na razmerje med pornim pritiskom in totalno napetostjo. Da bi raziskali učinek stopnje specifične deformacije na variiranje pornega tlaka, so bili preiskani štirje vzorci gline različno plastične gline. Rezultati preizkusov so pokazali, da je tendenca variiranja pritiska porne vode odvisna od režima odtekanja vode, ki je lahko Darcyjev ali ne-Darcyjev, prav tako pa tudi, da plastičnost glin nima upoštevanja vrednega učinka na variiranje pritiska porne vode