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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 (where interpretations are done at each point then Mrd Depth(Layer Top)+Depth(Layer Bottom)/2 0 Layer Depth=Recorded Depth) Elevation Elevation of Mid Layer based on sounding collar elevation Elevation=Collar Elevation-Depth supplied by client Avgqe q, Avgqc Averaged recorded tip value(qe) n n=1 when interpretations are done at each point Averaged corrected ti r 9 P(q,)where Avggr--L�4, Avggt n=1 when interpretations are done at each point Avgfs Averaged sleeve friction(fs) - — Avgfs= Y_fs n , n=1 when interpretations are done at each point - Averaged friction ratio(Rf)where fnction ratio is defined _ -- as AvgRf=100% AvgRf a Avggr ------ ^� RJ Y 100°/u•q - _ — ----- - n=1 when interpretations are done at each point -- - t Avgu Averaged dynamic pore pressure(u) Avgu=n t n=1 when interpretations are done at each point Averaged Resistivity(this data is not always available Avgu= RESISTIVITY, AvgRes since it is a specialized test requiring an additional n module) n=1 when interpretations are done at each point Averaged UVIF ultra-violet induced fluorescence (this- Avgu W?EUVIF, 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 Avg7emp Averaged Temperature(this data is not always available Avgu=- TEMPERATURE, since it is a specialized test) n'-' _ n=1 when interpretations are done at each point - �� Averaged Gamma Counts(this data is not always Avgu= GAMMA, AvgGamma available since it is a specialized test requiring an n _, additional module) n=1 when interpretations are done at each point SBT Soil Behavior Type as defined by Robertson and I See Figure 1 — - _ 2 5 -Campanella Unit Weight of soil determined from one of the following user selectable options U Wt 1) uniform value See references 5 2) value assigned to each SBT zone 3} user supplied unit weight profile Total vertical overburden stress at Mrd Layer Depth 7Stress= y h T Stress , fvl A layer is defined as the averaging interval specified by where )7 is layer unit weight CFV the user For data interpreted at each point the Mid Layer h,is layer thickness Depth is the same as the recorded depth REGG CPTSUMM-1 20C-Rev 02-07-31