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CPT Interpretations U Wt Unit Weight of soil determined from 1) uniform value or ' ) users assigned unit each zone 3 3) user supplied inn weightght profile TStress Taal vertical overburden stress at mid layer depth TStress- EY h, where ri is layer unit weight his layer thickness ESOMS Effective vertical overburden stress at mid gayer depth - EStress=TStress-Ueq ' Ueq Equilibrium pore pressure determined from 1) hydrostatic from water table depth 2) user supplied profile t - --- Cn SPT N6a overburden correction factor Cn=(a,}-05 where c,'is in tsf 05<Cn<20 ' N6a i SPT N value at 60%energy calculated from OMratios assigned to each 3 SBT zone (N1)Ga SPT Nea value corrected for overburden pressure ( N16a=Cn•N6o 3 ' A(NI)6O Equivalent Clean Sand Correction to(N 1�a A(Nt),o = K.r •fNl), 7 t-KSPT Where KsPT is defined as 0 0 for FC<5% 00167m(FC-5) for 5%<FC<35% 05 for FC>35% FC-Fines Content in% (N1)eaa Equivalent Clean Sand(M)oa - - - (N1)soa=(N1�o + A(N1�o --� 7 ' Su Undrained shear strength-Nkt is use selectable Su_Or- � 2 - N,r i ' k I Coefficient of pemieability(assigned to each SBT zone) _ - 6 B9 Pore pressure parameter Au 2 4 BgmDr_�V ' Qtn Normalized Qt for Sal Behavior Type classification as defined by '-Qr-o, 4 i Robertson, 1990 —i Rfn J Normalized Rf for Sal Behavior Type classification as defined by A 4 IRobertson 1990 - -- - I Rfn=100%• SBTn Normalized Sal Behavior Type(slightly modified from that published by 4 Robertson 1990 This version includes all the soil zones of the original ' non-normalized SBT chart-see figure 1) -f Qc1 i Normalized Qt for seismic analysis qct=qc•(Palsy)°s 5 where Pa=atm pressure Qc1N Dimensionless Normalized Qt1 gc1N=qc1 1 Pa - - where Pa=atm pressure CONE EC