Existing know-how
Present knowledge about time effects in clays is that the capacity may increase by 10-50% within 1-2 years after installation and to 50-200 % after 10 years.
![](/globalassets/bilder/prosjekter/time-effects-on-pile-capacity/piletest_haga_1981-83_1000.jpg?width=3200&quality=80)
From NGI pile tests at Haga in 1981-1983 ( )
![Portrait of Kjell Karlsrud](/contentassets/6e0c0e62ee204dd8bdc1dd2b90c124ac/kk.jpg?width=220&quality=80)
Present knowledge about time effects in clays is that the capacity may increase by 10-50% within 1-2 years after installation and to 50-200 % after 10 years.
From NGI pile tests at Haga in 1981-1983 ( )