Unit Weight

[ONENGINEER]

Submerged unit weigh is equal to unit weight (Y) - unit weight of water

I guess Y is saturated unit weight. How can I get saturated unit weight?

When we correlate unit weights from SPT results which one we get? saturated or bulk or dry unit weights?

Thank you for your feedback.

 

[fattdad]

dry unit weight: The unit weight of soil when dry
moist unit weight: The unit weight of soil when moist
Saturated unit weight: The unit weight of soil when all the voids are filled with water
Bouyant unit weight: The effective unit weight of saturated soil when below the water table.

Use engineering judgement when assigning unit weights from SPT N-values. They are all based on empirical correlations. Sometimes you may need to do a parametric assessment to see whether you are tempting fate.

f-d

¡papá gordo ain’t no madre flaca!