Computation of NL

Calculation of the number of cycles to obtain the soil liquefaction

Can be evaluated with the aid of diagrams of the type of those in the figure below. The trend of NL is a function of the amplitude of the shear stress imposed thv (Normalized compared with the initial value of the average effective stress) and for different values ​​of the relative density Dr of the soil.

Diagram of reference for the calculation of NL