Pocket Penetrometer in kg/cm^2
Pocket Penetrometer in kg/cm^2
(OP)
thread261-237840: Pocket Penetrometers (kPa)
I read on here that people are using the direct conversion 1kg/cm^2 from a pocket penetrometer to 98.0665 kN/m^2. Whilst this is a correct conversion, if you are trying to calculate the undrained shear strength (Cu or Su)it is not correct. The pocket penetrometer test is analogous to sigma 1 in a triaxial test where sigma 3 is at or about zero. In other word the Cu value is 1/2 (sigma1-sigma3),(consider a mohr circle), which equates to half of the reading on the pocket penetrometer.
I read on here that people are using the direct conversion 1kg/cm^2 from a pocket penetrometer to 98.0665 kN/m^2. Whilst this is a correct conversion, if you are trying to calculate the undrained shear strength (Cu or Su)it is not correct. The pocket penetrometer test is analogous to sigma 1 in a triaxial test where sigma 3 is at or about zero. In other word the Cu value is 1/2 (sigma1-sigma3),(consider a mohr circle), which equates to half of the reading on the pocket penetrometer.
RE: Pocket Penetrometer in kg/cm^2