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tj <br /> CPT Interpretations Page 3i7 <br /> Interpreted Description Equation Ref <br /> Parameter <br /> Averaged UVIF ultra-violet induced fluorescence (this Avgu= ±UVIF, <br /> AvgUVIF data is not always available since It is a specialized test R'.1 <br /> requiring an additional module) n=i when interpretations aro done at each point <br /> AvgTemp Averaged Temperature(this data is not always available Avg.=n ETEMPERATURE, <br /> since it is a specialized test) <br /> when interpretations are done at each point_ <br /> Averaged Gamma Counts(this data is not always t " <br /> AvGamma available since it is a s Avgu=— GAMMA <br /> g peciatized test requiring an n,_, <br /> additional module) n=1 when interpretations are done at each point <br /> SBT wSoil Behavior Type as defined by Robertson and See Figure 1 _— _ — 2,5 <br /> Campanella <br /> Unit Weight of soil 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 /> Total vertical overburden stress at Mid Layer Depth. Tstress= ----_ --- �_s <br /> T.Stress EYh, <br /> A layer is defined as the averaging interval specified by where n is layer unit weight <br /> (Fy the user. For data interpreted at each point the Mid Layer hi 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 q <br /> For hydrostatic option: <br /> Equilibrium pore pressure determined from one of the <br /> following user selectable options: -p=y,•(D-D_) <br /> Ueq where u,p 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 /> D,t is the depth to the water table <br /> Cn SPT Nw overburden correction factor where orvis in tsf <br /> 0.5<Cn c 2.0 <br /> SPT N value at 60%energy calculated from qt/N ratios <br /> Neo assigned to each SBT zone. This method has abrupt N See Figure 1 4,5 <br /> value changes at zone boundaries. <br /> —(N,)so SPT NOO value corrected for overburden pressure � (Nr)so s Cn!Neo 4 <br /> Neole SPT Neo values based on the fc parameter (gt/pa)/NO=8.5(1 -Ic/4.6) 5 <br /> (N,)eolc SPT Nee value corrected for overburden pressure(using 1) (Nt)solr�Cn•(Nen lc) 4 <br /> Neo lcj. User has 2 options, 2) qc,„/(N,)eelc=8.5(1-Ic/4.6) 5 <br /> _�.�.,_ _r�_....._..�.._......._...�._,..--.,._.._..W_.-�.�_.�_ 1} (Nr)socelc=a+R((Nr)sdc) _..._._._... 10.� <br /> 2) (N,)epic=Ks" ((N,)w1c) 10 <br /> 3) gc,no)/(N1)socsfc=8.5(1 -Ic/4.6) 5 <br /> (N,)eoIc Clean sand equivalent SPT(Nt)aalc. User has 3 options. FC:5 5%: a=0, P=1.0 <br /> FC z 35% a=5.0, 0=1.2 <br /> 5%<FC<35% a=e>p[1.76- 90/FC)I <br /> =[0.99+(FC'-5/1000)] <br /> Su Undrained shear strength-Na Is user selectable _ -Su=qt-a. _ i 5 <br /> " <br /> k Coefficient of permeability(assigned to each SBT zone) 5 <br /> I • <br /> CPTS UMM-MethodsGV122a-Rev.08-10-2004 <br />