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CPT Interpretations <br /> U Wt. Una Weight of sal determined from <br /> 1) unrform value or <br /> 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> TStress Total+�ertcal overburden stress at mid layer depth TStress=Er.h. <br /> , 1 <br /> where y,is layer unit weight <br /> h is layer thickness <br /> EStress fffe&ive vertical overburden stress at mid layer depth — EStress=TS-tress--Ueq <br /> Ueq Equilibrium pore pressure determined from --- <br /> 1) hydrostatic from water table depth <br /> 2) user supplied profile <br /> Cn SPT Neo overburden correction factor _ w Cn-(Qjo a <br /> Where a, 1s rn tsf lig <br /> - - - 05<C„<20 <br /> Neo SPT N value at 60%energy calculated from QUN ratios assigned to each 3 <br /> SBT zone <br /> (Ni)GO SPT Neo value corrected for overburden pressure IV 160=Cn•Neo ----- 3 <br /> A(NI)GO Equivalent Clean Sand Correction to(Nl�o e(Nqbo - Kir .(N1), 4-YYY 7 <br /> — 1—Ksrr <br /> Where KsPr is defined as <br /> 0 0 for FC<5% <br /> 0 0167.(FC-5) for 5%<FC<35% <br /> 05 for FC>35% <br /> FC-Fines Content in% <br /> (N1)e0M Equivalent Clean Sand(N1)eo LL - - (N1)00�$=(N1)�o + A(N1)eo 7 <br /> Su Undrained shear strength-Nkt is use selectable- — - Su=Qr-a 2 <br /> Nkr <br /> k Coefficient of permeability(assigned to each SBT zone) 6- <br /> Bq Pore pressure parameter ----- - - - Bq- A” --- ----_ 2- <br /> Qt-v, <br /> Qtn Normalized Qt for Sal Behavior Type classification as defined by On=Qr-v, 4 <br /> Robertson,1990 Cr <br /> v <br /> Rfn Normalized Rf for Sal Behwor Type classdication as defined byf, 4 <br /> Robertson,1990 Rfn=100%. <br /> Qr-Q� <br /> SBTn Normalized Sal Behavior Type(slightly modified from that published by 4- <br /> Robertson, 19W This version includes all the sod zones of the original <br /> non-normalized SBT chart-see figure 1) <br /> Oci Normalized Qt for seismic analysis qct=qc-(Pat6.')e 5 5 <br /> where Pa=atm pressure <br /> Qct N Dimensionless Normalized Ott qct N=qc1 t Pa <br /> when: Pa=atm pressure <br /> CONE EC <br /> 1� <br />