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' CPT Interpretations Page 317 <br />' Interpreted Ref <br /> Parameter Description Equation <br /> Averaged UVIF ultra-violet induced fluorescence (this Avgy=t�UVIF, <br /> Avg <br /> UVIF data is not always available since it is a specialized test <br />' requiring an additional module) n=1 when interpretations are done at each point <br /> AvgTemp Averaged Temperature(this data is not always available Avgv=n ETE'MPERATURE, <br /> since it is a specialized test) <br /> n=1 when interpretations are done at each point <br />' Averaged Gamma Counts(this data is not always 1 <br /> .tvgu <br /> AvgGamma available since it is a specialized test requiring an =n GAMMA, <br /> additional module) n=1 when interpretations aro done at each point <br />' <br /> SBT Sod Behavior Type as defined by Robertson and <br /> See Figure 1 2,6 <br /> Campanella <br /> Unit Weight of sod determined from one of the following <br /> user selectable options <br />' U Wt 1) uniform value See references 5 <br /> 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br />' T Stress Total vertical overburden stress at Mod Layer Depth Tstres—EY h, <br /> A layer is defined as the averaging interval specified by where n is layer unit weight <br /> (Tv the user For data interpreted at each point the Mrd Layer hf is layer thickness <br />' Depth is the same as the recorded depth <br /> E Stress <br /> 6v Effective vertical overburden stress at Mid Layer Depth Estress=Tstress-u., <br />' For hydrostatic option <br /> Equilibrium pone pressure determined from one of the <br /> following user selectable options up=Y,.(D-D.) <br /> Ueq where ueq is equilibrium pore pressure <br /> 1) hydrostatic from water table depth yW is unit weight of water <br /> 2) user supplied profile D is the current depth <br /> Dwt is the depth to the water table <br /> ICn=(Q„ -o 5 <br /> Cn SPT N60 overburden correction factor where a,'is in fsf <br /> 05<C„<20 <br /> SPT N value at 60%energy calculated from gt1N ratios <br /> N60 assigned to each SBT zone This method has abrupt N See Figure 1 4,5 <br /> value changes at zone boundaries <br /> (Nl)eo SPT Neo value corrected for overburden pressure (Nr)so=Cn•N6o 4 <br /> Neole SPT Neo values based on the Ic parameter (gtlpa)/Neo=8 5(1 -icA 6) 5 <br /> I (Ni)ODIc SPT N80 value corrected for overburden pressure(using 1) (Ni)wlc=Cn.(Also 1c) 4 <br /> Neo It) User has 2 options 2) qc„d(Nr)salc=8 5(1-Icl4 6) 5 <br /> 1) (N,)wrslc=a+0((Nf)6a1c) 10 <br /> I 2) (Ni)eocslc=KsPT M1)6olc) 10 <br /> 3) q.v.)l(N,)eoeslc=8 5(1 -Icl4 6) 5 <br /> I <br /> (Nl)eocslc Clean sand equivalent SPT(Na)eoIc User has 3 options FC15 5%� a=0, 0=1 0 FC 2 35% a=5 0, 0=1 2 <br /> 5%<FC<35% a=exp[1 76-�1901FC2)l <br /> R=[0 99+(FC 511000)] <br /> Su Undrained shear strength-Nkt is user selectable su=q —, 1, 5 <br /> k Coefficient of permeability(assigned to each SBT zone) 5 <br /> I CODE ESC., <br /> ICPTSUMM-MethodsV122a-Rev 06-30-2004 <br />