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GEO5

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Analysis According to the Theory of Limit States

When performing the analysis according to the theory of limit states the program carries out the verification analysis for a pile group in a cohesionless soil:

where:

Rg

-

vertical bearing capacity of a pile group

n

-

number of piles in the group

Rc

-

vertical bearing capacity of an isolated pile (Rb + Rs)

γt

reduction coefficient of total resistance

ηg

-

pile group efficiency

Vd

-

maximum vertical force (including the pile cap self weight)

Wp

-

self weight of piles (only when the option "Consider the self weight of pile" is checked)

When performing the analysis according to the theory of limit states the program carries out the verification analysis for a pile group in a cohesive soil:

where:

Rg

-

vertical bearing capacity of a pile group

Vd

-

maximum vertical force (including the pile cap self weight)

Wp

-

self weight of piles (only when the option "Consider the self weight of pile" is checked)

γt

-

reduction coefficient of total resistance

When performing the verification analysis according to EN 1997-1 the pile group vertical bearing capacity in a cohesive soil is reduced by the coefficient of base resistance (γt = γb).