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CPT Interpretations Page 5/7 <br /> Inlaqweded Dasc~ Equation Ref <br /> I � Parameter <br /> Youngs Modulus based an the work by Sakai. There are <br /> three types of sands conskdered in this technique The user Mean normal stress is evaluated from <br /> selects the appropriate type for the site tram <br /> 1 <br /> a)OC Sands 6_ `3' ,+Un+a. <br /> Youngs b)Aged NC Sands <br /> Modulus E c)Recent NC Sands where vertical <br /> a'v'=vertical effedrre stress <br /> Each sand type has a family of curves That depend on mean or'=horizontal effective stress <br /> normal stress The program calculates mean normal stress and o,= K. u with Ko assumed to be 0 5 <br /> and finea►ty interpolates between the two extremes provided <br /> in Baldr's chart <br /> Su Undfamed shear s6argth-Nk is user selectable Su=4—, 1 5 <br /> 1 a)teased on Schmertmann s method involving a <br /> W of Wq;/(Sjc')w and OCR <br /> OCR over Consofidadon Ratio g <br /> where the Su/p ratio for NC day is user <br /> selectable <br /> II <br /> BRMG <br /> J <br /> I . <br /> 7 <br /> CPTSUM"ethodsGV122a–Rev 08-10-20D4 <br />