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CPT Interpriatations <br /> • U.WL Unit Weight of soil determined from: <br /> 1) uniform value or <br /> 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> TStress <br /> Total zi <br /> I overburden stress at mid layer depth TStress= <br /> EY,h, <br /> where p is layer unit weight <br /> hi is layer thickness <br /> EStress Effective vertical overburden stress at mid layer depth EStress=TStress—Ueq <br /> Ueq Equi'llbriumpor'e pressure determined from: <br /> 1) hydrostatic from water table depth <br /> 2) user supplied profile <br /> Cn SPT Neo overburden c�io-n' factor .A5' <br /> where o-,'is in tst <br /> 0.5<C„<20 <br /> Neo SPT N value-at 60%energy calculated from Qt/N ratios assigned to each 3 <br /> SBT zone <br /> SOT f4;e value corrected for overburden pressure Mao=Cn Aida 3 <br /> A(N1)aa. Equivallent Clean Sand Correct'ion to'(N,I-)ao,­- A(N1), (N 060 <br /> 1—Kp, <br /> Where: KEPT is defined as: <br /> 0.0 for FC<5% <br /> 0.0167-(FC-5) for 5%<FC<35% <br /> 0.5 for FC>35% <br /> FC-Fines Content in% <br /> (NII)eocs�(Nl)aa + D(N1)ea 7 <br /> CS Equivalent Clean Sand(Nl)eo <br /> --- <br /> Su Undrained shear strength-Nkt is use selectable S11 2 <br /> Nk <br /> 'd6eatfilci�ni iiit�(assiig,ned-to,each h-S,BT zone.._....._._ <br /> 6 <br /> 6q Pore pressure parameter BAU 2 <br /> B4Q, <br /> QinNormalized d-t-far Sal Behavior Type classification as defined by QIn=Q,-ar4 <br /> Robertson,1990 CT <br /> -ki-n­­ Normalized Rif for Soil Behavior Type classification as defined by P/o• fs 4 <br /> RfnI OC <br /> Robertson, 1990 Qt-C„ <br /> SBTn Normalized S611 Behavior Type(slightly modified from that published by 4 <br /> Robertson, <br /> 19W. <br /> This version includes all the soil zones of the original <br /> non-normalized SBT chart-see figure 1) <br /> Qct Normalized Qt for seismic analysis qct qc (Pa/(Y„')" 5 <br /> where: Pa=atm.pressure <br /> --------------- <br /> 6�TW--- Dimensionless ess.Normalized Qtl qcIN=qcl I Pa <br /> where: Pa=atm.pressure <br /> COIN ETEC <br />