Abstract:
Full scale filed test to determine ground bearing pressure under rig tracks. The track loads recorded in
real time using Liebherr's Ground Pressure Visualisation system. Vertical stress induced in the ground
measured with pressure cells embedded in the ground. It has been found that the recommendation of EN
16228 regarding determination of the track length is oversimplified. The contact length should
dependent on the susceptibility of the working platform. It has been also demonstrated that the corrected
pressure distributions under the tracks influence the dimensioning of the working platforms. As a result,
the designed working platform may actually be less secure than is shown by conventional calculations.