AASHTO Nongravity cantilevered wall design

[coloradobridges]

AASHTO Figure 5.6.2A (in the 17th ed. standard spec) shows a simplified pressure distribution for wall elements embedded in rock. The formula for the passive resistance of the rock is given as:
Pp = s*D /(1+tan B)/(D+2^.5*b)

If s is shear strength of rock in psf, shouldn't the (D+2^.5*b) term be in the numerator to make the units work (i.e. give Pp in lbs or kips)?

Thanks in advance.

 

[jdonville]

All,

The fun and games continue in the following thread: 256-135987

Jeff


Jeffrey T. Donville, PE
TTL Associates, Inc.

http://www.ttlassoc.com