Example 5: Immediate settlement under a circular tank on layered subsoil
Description of the problem
To verify the immediate settlement under a circular loaded
area calculated by ELPLA,
the immediate settlement at the center of a tank calculated by
Das
(1983) (Example 6.2, page 354) is compared with that obtained by
ELPLA.
A circular tank of 3.0 [m] diameter is considered as shown
in Figure 5. The base of the tank is assumed to be flexible and having a uniform contact pressure
of q
= 100 [kN/m2]. A sand layer 9.0 [m] thick is located under the tank. The modulus of
elasticity of the sand is Es
= 21000 [kN/m2]
while Poisson’s
ratio of the sand is
ν
= 0.3 [-].
It is required to determine the immediate settlement at the center of the tank for two
cases:
a) Considering the underlying soil as one layer of 9.0 [m]
thickness.
b) Dividing the underlying soil into three layers of equal
thickness of 3.0 [m].
|
Contact
us