Analysis for Coarse-Grained Soils
For dense coarse-grained soils (e.g. ice soil) the stress-deformation (settlement) relationship is usually assumed as "elastic", i.e. the stress exponent j is equal to one. Thus for j = 1 and the reference stress σr = 100 kPa the resulting settlement equals to the sum of partial settlements of individual layers:
where: | σz,i | - | vertical component of incremental stress (e.g. stress due to structure surcharge) inducing layer compression - i.e. change of effective stress |
mi | - | Janbu modulus in the ith layer | |
hi | - | thickness of the ith layer |