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CPT Irderpretabons <br /> . [Ts <br /> Wt. Unit Weight of sal determined from <br /> 1) uniform value or <br /> 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> tress Total verticalonierburden stress at mid layrrr depth TStress=E y h, <br /> where �es layer unit weight <br /> h,is layer thickness <br /> EStress Effective vertical overburden stress at rn d layer depth EStress=TStress—Ueq <br /> Ueq Equilibrium pore pressure determined from <br /> 1) hydrostatic from water table depth <br /> 2) user supplied prole <br /> Cn SPT NOO overburden correction factor <br /> where M'is in tsf <br /> 05<Q,<2 <br /> Neo SPT N value at 60%energy calculated from QtIN rabos assigned to each 3 <br /> SBT zone <br /> (N1),o SPT No value corrected for overburden pressure N1m=CR•Neo 3 <br /> A(N1),O Equivalent Clean Sand Correction to(M)GOA(NI)60 = I SKr •(IV Ow 7 <br /> svr <br /> Where Ksrr 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 /> Equnralent Ckm Sand(N1)eo (141)ao, =(N1)o + A(N1)so 7 <br /> Su Undrained shear strength-NM is use selectable =Qt—vy 2 <br /> Nb <br /> k coefficient of perrrieemity(assigned to each SBT zone) 6 <br /> Bq Pone pressure parameter B Au 2 <br /> R=Qt-ay <br /> Qtn Normalized Qt for Skil Behavior Type classification as defined by Qm_Qt--cr. 4 <br /> Robertson,1990 a y <br /> Rfn Nomnalmed Rf far Soil Behavior Type classification as defined by fs 4 <br /> Rf0% <br /> n=10 • <br /> Robertson,1990 Qr—cry <br /> SBTn Normatrted Sal Behavior Type(slightly modified from that published by 4 <br /> Robertson,1990 This version includes ail the sol pones of the original <br /> non-no malized SBT chart-see figure 1) <br /> Qct Nomialized Qt for seismic analysis qct=qc a(Palati f S 5 <br /> wherm Pa=alm pressure <br /> Qc1N Dimensionless Normalized Qt1 gc1N=gc11 Pa <br /> where Pa=atin pressure <br /> EGG <br />