Civil Engineering Reference
In-Depth Information
Figure 22.15
Solutions for rate of consolidation.
From Eq. (22.8) the drained bearing capacity of a foundation depends on the factors
N
γ
and
N
q
and on the effective stresses which arise from the terms (
γ
−
γ
w
)
B
and
(
w
)
D
. If the groundwater and pore pressures rise the effective stresses in the ground
below the foundation reduce and the bearing capacity decreases. If the foundation has
a fixed bearing pressure due to the weight of the structure it is supporting the load
γ
−
γ
