elevation survey measurements were made.
The maximum pier heave measured at that time was 280 mm (11 in.).
Most of the building movement occurred in the west half of the building, particularly in
the southwest corner. The differential movements along with the
dip of the bedrock caused large lateral forces to be applied to
the piers. Some of the piers had undergone large heave and experienced
shear failure. Fig. 5 shows shear failure of a pier at the site
in January 1998.