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CPT Interpretations <br /> � U Wt lend Weight of sal determined from <br /> 1) untk m value or <br /> I 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> TStress Tctal vertical overburden stress at mid layer depth 7Stress h, <br /> Ir <br /> where n is Layer unit weight <br /> h,is layer thickness <br /> Mess Y Effecttve vertical overburden stress at mid layer depth --T--- - EStress=7S&ess-Ueq -- <br /> -Uec{ Equilibnum pore pressure determined from <br /> 1) hydrostatic from water table depth <br /> 2) user supplied profile <br /> Cm--- - SPT Neo overburden correction factor - <br /> where M,is in tsf <br /> 05<C,<20 <br /> Neu SPT N value at 60%energy calculated from Qt/N ratios assigned to each _----- 3 <br /> SBT zone <br /> (Ni)ea SPT Neo value corrected for overburden pressure -- - NIw=Cn•Nea - _-- --` _ 3 - <br /> I a(Ni�a Equivalent Clean Sand Comecbon to(Ni}eu T - - - - A(N1} - tsar ^•(Nf) --- __ l- <br /> en — t—Kj to <br />' Where Ksr-r is defined as <br /> 0 0 for FC<5% <br /> 0 01$7.(FC-5) for 5%a FC<35% <br /> 05 for FC>35% <br />' • FC-Fines Content in% <br /> (N1)e0. Equivalent Clean Sated(Ni)eo - -—-- -- - (N1)eo. (N1)eo + a(Nl)eo ---- 7- <br />' Su thmdrained shear strength-Nkt is use selectable- ---- - -Su=Qt`aY <br /> Nre <br />' k - J Ceeffcient of permeability(assigned to each SBT zone) - _-- __ -- - - <br /> Sq Pare pressure parameter Bq= Du 2 <br />' 4tn Normalized Qt for Sad E3ehavrar Type classification as defined by - Qrn=Qr-a, - _ -- - 4 <br /> Robertson 1990 a , <br /> Rfn Nommai¢ed Rf for Sai Behavior Type classification as defined by -- <br /> Robertson,1990 <br /> S13Tn Normalized Sotl Behavior Type(slightly modified from that published by a- <br /> Robertson, 1990 This version includes all the sal zones of the anginal <br />' non-normalized SBT chart-see figure 1) <br /> Qc1 Normalized Qt far seismic analysts qct =qc•(Pala,)o s 5Y <br /> where Pa=atm pressure <br />' Qci N Dinmensionless Normalized Qt1 - - -- - v - - - - qci N=qcl 1 Pa --- -- - <br /> where Pa=atm pressure Lj <br /> I <br /> • CONETEC <br /> I <br />