Calculation of Foundations
It's a complete package for foundations analysis
and design; because of its completness, flexibility ad user-friendliness it is a
fundamental instrument for any kind of geothecnical project.
 To
calculate the bearing capacity of foundations, the following methods can be used:
Terzaghi, Meyerhof, Hansen and Vesic. Such methods are based on different
hypotheses regarding failure modes, making it interesting to compare the
different results.
Normally, the allowable bearing pressure is
determined for a given shape (square, rectangular, circular or ribbon-like) and
stratigraphy.
The safety factor under effective load
conditions is determined as the ratio between ultimate bearing pressure and the
effective vertical stress.
It is possible to determine the settlement of
foundations resulting from normal loads and from moments.
The calculation is performed at the most
significant points and thus also the rotations due to differential settlement
are determined.
 The
settlement can be determined for square, rectangular, circular or ribbon-like
foundations.
The use of numerical methods allows you to
determine immediate elastic deformation and the long term effects of
consolidation separately.
The programme allows one to group together more
foundations described individually and to evaluate the effect of the overloads
induced by surrounding foundations. This option allows one to analyse more
complex cases, like the influence of the neighbouring foundations, foundations
of any geometry and foundations on heterogeneous materials. Due to the
flexibility of the numerical approach, it is possible to perform the
calculations in accordance with the most frequently used theories (Boussinesq,
Terzaghi, Skempton).
The bearing capacity of the foundation piles of
small, middle or large diameter can be determined in stratified, coherent or
incoherent earth, under drained or undrained conditions.
 Different
formulae are used for driven piles (in steel or concrete) and for drilled piles,
thereby taking into account the effects induced by drilling or pile driving.
Calculations to obviate the risk of seismic
disturbances are also possible.
The formulae and experimental curves proposed by
different authors are used, thus allowing the results obtained by different
methods to be compared.
Point and skin resistance (whose sum constitutes
the ultimate pile capacity) are determined separately, and thus the safety
factor is determined for projected loads.
The programme performs the calculations for
different families of diameters and lengths, the resultant chart allows the
choice of the optimal diameter-length combination from an economic point of view
as well.
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