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  1. PCG

    Settlement Estimate based on SPT or DCP in cohesive soil

    Charlierock mv is your coefficient of compressibility. m2/MN is the units for mv. qn is your net bearing pressure. it's 1/(N*0.5).
  2. PCG

    Settlement Estimate based on SPT or DCP in cohesive soil

    Stroud & Butler (1975) is always useful, calculating mv from a design N value as follows: mv = 1/N*0.5m2/MN Settlement = mv*0.55qn*1.5B

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