EK508
The settlement of non-draining soils consists of three parts: Elastic compression (short term; occurs during construction). Primary consolidation (long term; occurs during the design life of the structure). Secondary compression […]
EK507
There are two common modes of settlement of non-free-draining soils (fine-grained soils, fine sand, and medium sand with fines greater than 10%). One is the natural drainage of water from […]
EK506
The settlement of free-draining coarse-grained soils (e.g., medium sand with fines less than 5%, clean, coarse sand) is generally calculated assuming that these soil behave as elastic materials.
EK505
Because of the variability of soils and the complexity of their behavior, it is difficult to estimate settlement unless simplifying assumptions are made. One of these assumptions is that the […]
EK504
Settlement is divided into rigid body or uniform settlement, tilt or distortion, and nonuniform settlement.
EK503
Coarse sand with fines >10%, fine sand and medium sand are not free-draining. Settlement in these soils can occur well beyond the construction period.
EK501
The time dependent settlement or densification of soils, essentially fine-grained soils, by the expulsion of water from the voids is called consolidation.
EK500
The time rate of settlement of coarse-grained and fine-grained soils is different. Free draining, coarse sand and gravel with fines <5% generally have good drainage qualities (high hydraulic conductivity), so […]
EK493
Consolidation is the time-dependent settlement of soils resulting from the expulsion of water from the soil pores.
EK455
A point of equilibrium, called the neutral plane, exists where the negative skin friction changes over into positive shaft resistance. This is where there is no relative movement between the […]