Geoscience Reference
In-Depth Information
much greater than of other soils. Second, the creep portion of settlement plays a more
significant role in determining the total settlement of peat than of other soil types. The
primary consolidation of fibrous peat is very rapid, and large secondary compression,
and even tertiary compression, is observed. Secondary compression (discussed in the
next section) is generally the more significant part of compression because the time
rate is much slower than for primary consolidation (Yulindasari, 2006).
Figure 5.15 shows the changes in coefficient of volume compressibility (
m
v
) with
consolidation pressure. It was observed by the authors that the
m
v
decreased with
increasing consolidation pressure.
Kazemian and Huat (2009a) have also studied the variation of the coefficient of
consolidation with consolidation pressure. Figure 5.16 shows this for fibrous peat.
Figure 5.15
Coefficient of compressibility vs. consolidation pressure for fibrous peat (
after
Kazemian
and Huat, 2009a).
Figure 5.16
Coefficient of consolidation vs. consolidation pressure for fibrous peat (
after
Kazemian
and Huat, 2009a).
