The calculation option "9- Settlements of footing groups" in GEO Tools program is used to calculate the settlements and tilting of groups of rigid centrally loaded rectangular footings on stratified subsoil. The settlements are calculated for bilinear deformation behavior of the soil according to the theory of elasticity. The settlements at 4 corner points and at the middle of the footing are calculated. For each layer, Modulus of Compressibility for loading and reloading can be defined. The self-weight of the footings and the foundation depth of the footings are considered. Height differences in the footing bases are also considered. If desired, the subsoil stresses and the limit depths of the settlements can be determined. The calculations are based on DIN 4019.

Calculation of foundation settlements using the GEO Tools described in this book can also be calculated using the ELPLA program and the same results can be obtained. GEO Tools is a simple user interface program and requires little information to define a problem. It is preferable to use it for a simple footing geometry. In addition, ELPLA can read data files of a settlement problem that are defined by GEO Tools. With some modifications to this data, the user can recalculate the problem by ELPLA.