Table 4: Values of 3D coefficient of consolidation of soils by using the developed 3D consolidation apparatus under different vertical pressures.

Types of soilVertical stressesCoefficient of consolidation
σ (kN/m2)cv3 × 10−6 (m2/s)

Silty sand with clay soil1003.267
2007.131
40014.927
80018.471
Silty-clay soil1001.037
2001.870
4004.301
8004.618