3.6 Additional Examples
Example 3.9
Predict the following settlement components for a circular footing of 2m in diameter that
carries a load of 200kN as shown in Figure 3.26.
(a) Average consolidation settlement of the footing in 5 years (use the 2:1 distribution
method)
(b) Maximum ultimate differential settlement
(c) Elastic settlement from Schertmann’s method
(d) Total ultimate settlement of the center of the footing
Consolidation properties of the clay layer can be obtained from Figure 3.15. Assume its
coefficient of consolidation to be 1 108 m2/sec.
Suitable elastic parameters of the sandy soil can be obtained from Chapter 1 (Table 1.5
and Table 1.6).
(a) Increase stress at the center of the soft clay
2m diameter footing