ABSTRACT
ABSTRACT: To evaluate the load carrying capacity of existing pavements the dynamic method of the Falling Weight Deflectometer (FWD) is often used. With this device, the traffic is simulated by a falling weight. The deflections invoked in the roadway are measured with up to nine geophones. During the measuring procedure the maximum deflection hollow, as well as the time dependent and force and deformation data (“Time History”) are recorded. For evaluating the load carrying capacity out of the measured data currently static methods based on the maximum deflection hollow is used. In this paper, new procedures for a dynamic evaluation as well as interpretation of the time history data are presented.
