Hey why waste your time with these guys.
Here it is.
Nj = 0.833(N1)60
The paper that mentions the Japanese hammer came from the following paper:
Ishihara, 1993. Liquefaction and Flow Failure During Earthquakes, Geotechnique, Vol. 43, No. 3, pp. 351-415.
Anyone know how to write a MATHCAD 2001 program to analyze liquefaction based on the NCEER 2001 Paper?
Or maybe you have one already and would like to share it with me.
Thanks.