Page 173 - Numerical Analysis and Modelling in Geomechanics

154 C.L.RAMSHAW AND A.R.SELBY

Figure 5.16 Radial particle velocities at (a) 7 m and (b) 16.5 m, impact hammer, Flitwick
(computed=solid line, measured=dashed line).
Calibration of the vibrodriver model
The modelling procedure was calibrated against several site records, two of
which are now reported, which have very different soil conditions. The first data
set was recorded at Flitwick during an extensive pile driving trial. The second set
was taken during driving of casings at the Second Severn Crossing, where soil
conditions were not best suited to vibratory installation.