CENTRIFUGE OF THE UNIVERSITY OF DELFT
Simulation of soil uplift by grout injection.
Aim: what is the behaviour of a soil layer during expansion of a grout bag.
Diagram and photo test setup. The expansion of a grout bag is simulated by pushing a
bar into the soil. Friction is reduced by a flexible sleeve. The displacement of the
surface is visualized by means of markers.
ORIENTATING TEST
Some markers are placen on the sand surface in order to visualize the displacement.
The displacement is visualized by subtracting two images, after the bar was pushed
into the soil. Image processing techniques can be used to digitize the displacement
of the markers during the test.
In the first instance the behaviour of the soil will be examined by using a well
controlled upheave system. In a later stage attention will be paid on the behaviour
of a bag which is filled with a fluid.
Click here to see a movie (1.4 Mb) during uplift.
Contact person: Henderikus Allersma