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' CPT Interpretations The parameters selected for output from the program are often specific to a particular project As such, not all of the Interpreted parameters listed In Table 1 may be included In the output files delivered with this report ' Table 1 CPT Interpretation Methods Interpreted Description Equation Ref Parameter Mid Layer Depth ' Depth Depth(Layer Top)+Depth(Layer Bottom)/2 0 {where interpretations are done at each point then Mrd Layer Depth=Recorded Depth) Elevation Elevation of Mid Layer based on sounding collar elevation Elevation=Collar Elevation-Depth supplied by client Avgqc Averaged recorded tip value(q�) Avggc=n q` n=1 when interpretations ars done at each point Averaged corrected tip(qt)where Avgg,=I iq, Avgqt 4,=4,+(1_a)•u n n=1 when interpretations are done at each point ' Avgfs Averaged sleeve friction(fs) Avgfv= fs n=1 when interpretations are done at each point Averaged friction ratio(Rf)where friction ratio is defined Avgs f as AvgRf=100%. AvgRf f` AvS9r Rf=100%•9r n=1 when interpretations are done at each point Avgu Averaged dynamic pore pressure(u) Avgu=1 ' n _ n=1 when interpretations are done at each point ' Averaged Resistivity(this data is not always available AvgRes since it is a specialized test requiring an additional Avgu-nERESISTIVITY, module) n=1 when interpretations are done at each point Averaged UVIF ultra-violet induced fluorescence (this Avg„= 'iUVIF, AvgUVIF data is not always available since it is a specialized test n, requiring an additional module) n=1 when interpretations are done at each point ' g p Averaged Temperature(this data is not always available Avgu= 'i TEMPERATURE, Av Tem since it is a specialized test) n'.1 n=1 when interpretations are done at each point Averaged Gamma Counts(this data is not always AvgGamma available since it is a specialized test requiring an Avg"=n GAMMA, ' additional module) n=1 when interpretations are done at each point SBT ISoil Behavior Type as defined by Robertson and See Figure 1 2, 5 Campanella Unit Weight of sod determined from one of the following user selectable options U Wt 1See references 5 ) uniform value ' 2) value assigned to each SBT zone 3) user supplied unit weight profile Total vertical overburden stress at Mid Layer Depth 1Srresc=�?r h T Stress - ' A layer is defined as the averaging interval specified by where n is layer unit weight 6v the user For data interpreted at each point the Mrd Layer h,is layer thickness Depth is the same as the recorded depth ItEGG ' GPTSUMM-1 20C—Rev 02-07-31 �:----�--,