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Advanced check for liquefaction: SLIQ2D
Background informations about SLIQ2D can be find in the xxx.
Determination of the imaginary surface
In this program, the fictive slope height and the fictive slope inclinaison are determined using the follwing steps:
Step 1:
The height of the part of the slope above water (h1) is increased until h2 with a factor equals to the ratio between the soil unit weight above water table and the soil below water table:
xxx
with:
w, the water grade
Sr, the degree of saturation of the soil 0 < Sr < 1). For sand (general dry) Sr = 0 and for clay (generally completely saturated) Sr = 1.
Step 2
By means of the least squares method, the submerged slope (red line in the figure below) compared to the fictive submerged slope is determineden subsequently the fictive slope inclinaison (Alpha_R).
