This paper investigated the vertical and horizontal distribution of excess pore pressure generated by cone penetration. Multi-porous element piezocone tests were conducted in the field and physical model tests were also performed in the
calibration chamber. The excess pore pressure on the cone face (∆_u1) was always higher than the shoulder filter (∆_u2), and ∆_u1/∆_u2 increased with an increase of OCR and hydrostatic pressure. The excess pore pressure decreased along the shaft as it vertically ascended from the shoulder filter, and this reduction became more significant as OCR increased. In addition, in the horizon
tal direction at the shoulder filter location, the excess pore pressure decreased with increasing distance from the cone in overconsolidated soils with OCR=4, whereas in heavily overconsolidated soils with OCR=10, the excess pore pressu
re increased from the cone boundary, reached a maximum value, and then decreased with increasing distance from the cone.