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Forces from Earth Pressure at Rest Acting on the Rigid Structure

Earth pressure at rest acts on the rigid structures (e.g. stem of the cantilever wall) in earthquake analysis. Following resultant force of this pressure is taken into account:

where:

Η

-

height of the structure

kh

-

seismic coefficient of horizontal acceleration

γ

-

unit weight of soil

Resultant force acts in the half of the structure height.