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ICPT Interpretations <br /> IU Wt Unit Weight of sal determined from <br /> 1) uniform value or <br /> I 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 7)is layer unit weight <br /> h,is Layer thickness <br /> EStress l Effective vertical overburden stress at mrd layer depth I EStress=Mress--Ueq <br /> Ueq Equdrbnum pore pressure determined from <br /> 1) hydrostatic from water table depth <br /> 2) user supplied profile <br /> I Cn - - SPT Neo overburden correction factor <br /> where a,.'is in tsf <br /> -- -- - - 05<C"<20 <br /> Neo SPT N value at 60%energy calculated from Qt/N ratios assigned to each 3 <br /> S8T zone <br /> (Nide SPT Neo value corrected for overburden pressure - -- _ N1eo=Cn.Nvo 3 <br /> I ~Q(N1)5o Equivalent Clean Sand Correction to(N1)eo A(Nl),, = Kmsr *(N 1), 7 <br /> I-Kir <br /> I Where KSPT is defined as <br /> 00 for FC<5% <br /> 00167o(FC-5) for 5%<FC<35% <br /> 05 for FC>35% <br /> FC-Fines Content in% <br /> (N1)w,;. ( Equivalent Clean Sand(W)aa ry l (Nl) aO =(N1)80 + o(N1)8o ! 7 <br /> ISu f Undrained shear strength-Nkt is use selectable Su Qt- 6,. I 2 <br /> N,t� <br /> k Coefficient of permeability(assigned to each SBT zone) - T ___ __ _ 6 <br /> Bq _µ Pone pressure parameter - B4 Au _ 2 <br /> = <br /> Qt-Qv <br /> I Qtn Normalized Qt for Soil Behavior Type classification as defined by - Qtn_Qt-av 4 <br /> - Robertson, 1990 a v <br /> Rfrm _Normal¢ed Rf for Sal liehamor Type classrfcation as defined by fs 4 <br /> Robertson, 1990 l jn=100%. <br /> SBTn - Normalized Sal Behavior Type(slightly modified from that published by ' 4__ <br /> Robertson, 1990 This version includes all the soil zones of the onginal <br /> non-normalized SBT chart-see figure 1) <br /> Qct Normalized Qt for seismic anatysrs qc1 = c Pala„)0 5 5 <br /> q .( <br /> _ where Pa=atm pressure <br /> Qct N Dimensionless Normalized Qt1 qct N=qci 1 Pa <br /> where Pa=atm pressure <br /> GREGG <br /> I <br />