Civil Engineering - Soil Mechanics and Foundation Engineering

Minimum size of the particles of silt soil, is

The maximum value of effective stress in the past divided by the present value, is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is

If N_f, N_d and H are total number flow channels, total number of potential drops and total hydraulic head differences respectively, the discharge q through the complete flow is given by (where K is a constant)

A flow line makes angles θ₁ and θ₂ with the normal to the interface of the soils having permeabilities k₁, k₂ before and after deflection. According to the law of deflection of the flow lines at the interface of the dissimilar soils

Under-reamed piles are generally