Influence of saturation on the behavior of swelling soils (CROSBI ID 494045)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vrkljan, Ivan
engleski
Influence of saturation on the behavior of swelling soils
It has been noted that the saturated unloaded swelling rock does not swell nor disintegrate when submerged in water. Conversely, if the same rock is partly desaturated and then submerged in water, it shows swelling effects. Swelling effects become more pronounced with the increase in desaturation. The paper shows in which way this fact influences test sample preparation procedures, testing program, tunnel design practices, and measures to be undertaken during excavation in saturated rock in order to avoid negative effects of swelling. A new characteristic swelling rock curve, nonlinear on the semilogarithmic scale, can be obtained by balancing the swelling zone with the partial desaturation zone. This new nonlinar characteristic curve emphasizes, more than other curves, the known fact that small stresses significantly reduce swelling deformation, i.e. that a small allowable displacement significantly contributes to the reduction of swelling stress. On-site measurements have shown that the characteristic curve is nonlinear on the semilogarithmic scale.
swlling; rock; soil; saturation
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
1119-1124-1124.
2002.
objavljeno
Podaci o matičnoj publikaciji
Hammah, Reginald ; Bawden, Will ; Curran, John ; Telesnicki, Mark
Toronto: University of Toronto Press
Podaci o skupu
NARMS-TAC Conference
predavanje
07.07.2002-10.07.2002
Toronto, Kanada