Dynamic Cone Penetrometer Test Results - Correlation to 'k'

[PeeJayP]

Hi,
Can anyone help me with correlating the results of TRL DCP testing with modulus of subgrade reaction, 'k' please?

I have found correlation to CBR, and from there I can get to 'k', but haven't found a direct correlation yet.

Thanks

 

[BigH]

Before anyone responds, please identify your dynamic cone details. Is this the TRRL miniature cone or the Sowers cone or the Canadian pentest. There are many varieties of dynamic cones.

 

[PeeJayP]

Thanks BigH

I've checked, It's the UK TRL DCP - 8kg weight dropping 575mm onto a 60 degree cone, 20mm diameter.