The total amount of settlement that a structure founded on a clay soil undergoes comprises of immediate (or elastic) and consolidation settlements. In the case of clay soils, amount of consolidation settlement (Sc) is more than that of immediate or elastic settlement (Se). Hence, it is important to correctly estimate the amount of consolidation settlement (Sc). The parameters that influence consolidation settlement of a field soil are initial degree of saturation (S%), void ratio (e) of soil prior to excavation, the amount of overburden pressure removed during trench making ( o), or in other...
The total amount of settlement that a structure founded on a clay soil undergoes comprises of immediate (or elastic) and consolidation settlements. In...
Expansive soils are highly problematic soils as they swell or increase in their volume when they absorb water and shrink when water evaporates from them. Hence, lightly loaded civil engineering structures founded in these soils develop unsightly cracks, causing severe financial loss. For mitigating this problem many innovative foundation techniques have been devised. Some of them are physical and chemical alteration, drilled and belled piers, under-reamed piles and granular pile-anchors. In chemical alteration, chemical additives like lime, cement, calcium chloride and fly ash are used for...
Expansive soils are highly problematic soils as they swell or increase in their volume when they absorb water and shrink when water evaporates from th...
