u/Bildipil

Hey everyone,

I'm designing a bored pile in sand and need a quick verification on my overburden stress profile.

Pile Cutoff Level (COL): -7.8m

Pile Length below COL: 39m

No soil exists above the cutoff level (it's a deep excavation/basement). The sand profile starts exactly at -7.8m.

Since the top 7.8m of soil is missing, am I correct in assuming:

1. The critical depth must be measured starting from the cutoff level (-7.8m) down, instead of the original ground level?

2. The effective vertical stress starts at 0 kPa at the cutoff level, increases linearly until critical depth, and then caps out to constant value beyond the critical depth ?

Just want to make sure my approach is right.

Thank you!

Hi all,

Could you please suggest me some good reliable reference for contigious piling design and execution.

Thank you.