SPT/DPL 5 ( dynamic probing light) N100 values to CBR values 1

[besatur1]

I do not know how to transform DPL N10 impact values into CBR values. I have the DPL's converted into SPT values ok, but do not know how to convert SPT into CBR VALUES! maybe the youngs modulus route from ciria 143? the soil is a granular silty SAND.

 

[BigH]

Check a few other threads on the subject. SlideRuleEra has posted on his web site a few correlation charts (see Fang's Foundation Engineering Handbook, Baker's Highway Engineering Handbook).

 

[besatur1]

ok, i had a look, couldnt find any specific information relating to the conversion of SPT's values to CBR percentages. Unfortunately, presently, i don't have access to the recommended literature, ill bookmark these. Thankyou anyway.