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Constrained Soil Modulus Ms

Constrained Soil Modulus Ms

Constrained Soil Modulus Ms

(OP)
Do any of you know how to calculate the constrained soil modulus Ms directly from the CPT tip stress Qc for clay soils?  I have some charts for sand, but I need to calculate it for CH clay?

I need this for the rehabilitation of a very old pipeline.   

RE: Constrained Soil Modulus Ms

constrained modulus/qc=alpha
alpha is an empirical coefficient
be carefull because all the correlations are made to different varieties of cone geometry and procedures

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