Example 4: Immediate settlement under a rectangular loaded area on
layered subsoil
Description of the problem
To verify the mathematical model of
ELPLA
for computing the immediate (elastic) settlement under a rectangular loaded area on layered subsoil, the
immediate settlement of saturated clay layers under a rectangular loaded area calculated by
Graig
(1978) (Example 6.4, page 175) is compared with that obtained by
ELPLA.
Janbu/
Bjerrum/
Kjaernsli
(1956) presented a solution for the average
settlement under an area carrying a uniform pressure
q
[kN/m2]
on the surface of a limited soil layer using dimensionless factors. Factors are determined for
Poisson’s
ratio equal to νs= 0.5 [-].
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