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at rest lateral earth pressure with sloped backfill (correction to closed thread)

at rest lateral earth pressure with sloped backfill (correction to closed thread)

at rest lateral earth pressure with sloped backfill (correction to closed thread)

(OP)
thread256-178686: at rest lateral earth pressure with sloped backfill

The thread number referenced above has been closed, but contains a typo in one of the formulas.

Here is the original post from Panars:

"2Panars (Geotechnical)21 Feb 07 10:49
In the US Army Corps Manual on Retaining and Flood Walls
EM 1110-2-2502
http://www.usace.army.mil/publications/eng-manuals...

you can find two methods to calculate the at-rest earth pressure for sloping backfill. The first is
Ko=(1-sin phi)(1-sin beta) where beta is the backfill slope angle."

The corrected formula from EM 1110-2-2502 is:
Ko=(1-sin phi)(1+sin beta)

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