Manual utilizator Slope - GeoStru Software

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Slope
material and all earth pressures, either favorable or unfavorable. Water
pressures not caused by the foundation load shall be included as actions.
6.5.2.2 Analytical method
1.The sample analytical calculation for bearing resistance given in Annex D may
be used.
2.An analytical evaluation of the short-term and long-term values of R d
shall be
considered, particularly in fine-grained soils.
3.Where the soil or rock mass beneath a foundation presents a definite
structural pattern of layering or other discontinuities, the assumed rupture
mechanism and the selected shear strength and deformation parameters shall
take into account the structural characteristics of the ground.
4.When calculating the design bearing resistance of a foundation on layered
deposits, the properties of which vary greatly between one another, the
design values of the ground parameters shall be determined for each layer.
5.Where a strong formation underlies a weak formation, the bearing resistance
may be calculated using the shear strength parameters of the weak formation.
For the reverse situation, punching failure should be checked.
6.Analytical methods are often not applicable to the design situations described
in 6.5.2.2(3)P, 6.5.2.2(4)P and 6.5.2.2(5). Numerical procedures should then
be applied to determine the most unfavorable failure mechanism.
7.The overall stability calculations described in Section 11 may be applied.
6.5.2.3 Semi-empirical method
1. The sample semi-empirical method for bearing resistance estimation using
pressuremeter test results given in Annex E is recommended.
6.5.2.4 Prescriptive method using presumed bearing resistance
1. The sample method for deriving the presumed bearing resistance for spread
foundations on rock given in Annex G is recommended. When this method is
applied, the design result should be evaluated on the basis of comparable
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