If you use DCP (produced by Durham Geo Slope company in US), this module helps you process and correlate DCP blow counts to equivalent SPT blow counts. Please enter depth and corresponding DCP blow counts as well as soil class (A to F) in the first 3 columns of the table. The other parameters including equivalent N60 and N1(60) will be calculated immediately. To transfer the correlated N60 obtained from DCP to the NovoSPT main page click on Accept Data button.


 


The following chart presents the correlations between DCP blows per increment and standard SPT blow counts for different soil types.

For the complete reference please read this paper:

 

 ASTM Special Technical Publication #399: Dynamic Cone for Shallow In-Situ Penetration Testing

    by: George F. Sowers and Charles S. Hodges Download link for user manual (Durham)