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' CPT Interpretations <br />' U Wt Unit Weight of sod determined from <br /> • 1) uniform value or <br />' 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> TStress "total vertical overburden stress at mid layer depth TStress y,h, <br />' where yi is layer unit weight <br /> h,is layer thickness <br />' EStress Effective vertical overburden stress at mid layer depth ES&ess=1 Stress-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 Cn={a,7-05 <br /> where 'Y"is in tsf <br /> 08<C�<20 <br />' N6 SPT zone at 60%energy calculated from Qt1N ratios assigned to each 3 <br /> SST zo <br /> (N1)flO SPT NOO value corrected for overburden pressure N1so=Cn•No 3 <br />' 4(N1)eo Equivalent Clean Sand Correction to(N1)eo Awl). K z N] 7 <br />' Where Ksp7 is defined as <br /> 0 0 for FC<5% <br /> 0 01167*(FC-5) for 5%<FC<35% <br /> 05 for FC>3596 <br /> FC-Fines Content in% <br /> (N1)—e Equivalent Clean Sand(N1)a (N1)w�=(N1)m + 4(Ni)e 7 <br /> Su Undrained shear strength-Nkt is use selectable Su_Qt-Q_ 2 <br /> k I Coefficient of permeability(assigned to each SST zone) I 6 <br /> Bq Pore pressure parameter1 4 Au I 2 Bq= 11 <br /> Qt-Qv <br /> Qtn I Normalized Qt for Sal Behavior Type cfassfcation as defined by Qln w Qt-vy 4 <br /> Robertson,1990 1 v 1 <br /> { <br /> Rfn i Normalized Rf for Soil Behavior Type classification as defined by f f 4 I Robertson,1990 �=100%* s <br /> Qt-QY <br /> SBTri Normalized Soil Behavior Type(slightly modified from that published by 4 <br /> Robertson,1990 This version includes all the soil zones of the original <br /> fnon-normalized SBT chart-see figure 1) <br /> Qc1I Normalized Qt for seismic analysis qc1 =qc•(Pa/d,,,)a 5 5 <br /> where Pa=atm pressure <br /> f Qct N Dimensionless Normalized Qt1 qci N=qc1 1 Pa <br /> where Pa=atm pressure <br /> f <br /> • <br /> GREGGI � <br /> f <br />