Metal Crusher Plant

January 1999 at Seattle


Method Applied

Top Feed Stone Columns Bottom Feed Stone Columns

Average Depth

Wet Top Feed Stone Columns near existing buildings and Dry Bottom Feed Stone Columns in remaining zones.

All columns to 15.2 m (50 ft) depth.

Average column diameter 0.91 m (3.0 ft)

Electronic Cone Penetration Tests (CPTs), supported by digital process data from Vibro rigs, supplemented by full-scale load embankment trials and evidence from dug out columns.