Manual utilizator Slope - GeoStru Software

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Slope
into account the presence of the masses associated with all gravity loads
appearing in the following combination of actions:
G k, j ' ''
E,
i Qk,
i
' (3.17)
where:
E,i
is the combination coefficient for variable action i (see 4.2.4).
3.The combination coefficients
E,i
take into account the likelihood of the loads
Q k,i
not being present over the entire structure during the earthquake. These
coefficients may also account for a reduced participation of masses in the
motion of the structure due to the non-rigid connection between them.
4.Values of
2,i are given in EN 1990:2002 and values of E,i
other types of
structures are given in the relevant parts of EN 1998.
4.1.3 Slope stability
4.1.3.3 Methods of analysis (EC 8-part 5)
1.The response of ground slopes to the design earthquake shall be calculated
either by means of established methods of dynamic analysis, such as finite
elements or rigid block models, or by simplified pseudo-static methods subject
to the limitations of (3) and (8) of this subclause.
2.In modelling the mechanical behaviour of the soil media, the softening of the
response with increasing strain level, and the possible effects of pore pressure
increase under cyclic loading shall be taken into account.
3.The stability verification may be carried out by means of simplified
pseudostatic methods where the surface topography and soil stratigraphy do
not present very abrupt irregularities.
4.The pseudo-static methods of stability analysis are similar to those indicated in
EN 1997-1:2004, 11.5, except for the inclusion of horizontal and vertical
inertia forces applied to every portion of the soil mass and to any gravity loads
acting on top of the slope.
© GeoStru Software-Slope 8.0.1