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GEO5

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Verification According to EN 1997-2

Program determines the base and shaft bearing capacities. Result is n values of total bearing capacities for n CPTs:

where:

Rc,i

-

bearing capacity from ith CPT

Rcd,i

-

design bearing capacity from ith CPT

Rb,i

-

base bearing capacity from ith CPT

Rs,i

-

shaft bearing capacity from ith CPT

γb

-

partial factor on base resistance (it's defined in the "Piles CPT" tab)

γs

-

partial factor on shaft resistance (it's defined in the "Piles CPT" tab)

Total bearing capacity is determined from:

x

where:

Rc, min

-

minimal bearing capacity

Rc, mean

-

average value of bearing capacity from all CPTs

Partial factor on model uncertainty γcal  is defined in "Settings" frame (default value is 1).

Correlation coefficients ξ3 and ξ4 are either set automatically according to number of CPTs, or are specified in the frame "Settings". For constructions with sufficient stiffness and resistance the correlation coefficients can be reduced by value 1.1 (result cannot be less than 1.0 after dividing).

Verification of pile is given by following formula:

where:

Fs,d

-

design load

Rc,d

-

design pile bearing capacity