Example 19: Iteration methods
Description of the problem
One of the difficulties to apply the Continuum model to
practical problems is that the long computation time. Therefore, a comparison for time and
accuracy required for analysis the raft by the Continuum model is carried out by the following
calculation methods:
|
- Modification of modulus of subgrade reaction by
iteration after
Ahrens/
Winselmann (1984)
(Winkle's
model/ Continuum model) |
|
- Modulus of compressibility method for elastic raft
on layered soil medium after El Gendy
(1998)
(Solving system of linear equations by iteration)
(Layered soil medium - Continuum model) |
|
- Modulus of compressibility method for elastic raft
on layered soil medium
(Solving system of linear equations by elimination)
(Layered soil medium - Continuum model) |
To evaluate the iterative procedures used in
ELPLA,
consider the raft shown in Figure 30. The raft has a dimension of 10 [m] * 20 [m] and 0.6 [m]
thickness. |