Page 6 - Technical E-Booklet Stone Column (Group 3)

WHY STONE COLUMN FOR

GROUND IMPROVEMENT?

Stone columns help to limit the By achieving this, the non-liquefying soil

amount and crust is thickened and stiffened to reduce

consequences of future the likelihood of undulations, tilt and

liquefaction by: uneven ground surface subsidence from

liquefaction of the underlying soil layers,

Densifying the soil through therefore reducing damage to the house

vibration and introducing stone foundations. In addition, stone columns

into the soil may sometimes provide the soil with an

Reinforcing the soil creating a increased drainage path to help reduce

stiff composite soil mass. excess pore water pressure that can lead

to liquefaction, so the columns can

reduce the consequences of liquefaction

when this occurs