Laserfiche WebLink
CPT Interpretations <br /> 491 U Wt Unit Weight of sal determined from <br /> 1) uniform value or <br /> 2) value assgned to each SOT zone <br /> 3) user supplied unit weight profile <br /> Tstress Total vertical overburden stress at mid layer depth TStress= y,h, <br /> where ri is layer unit weight <br /> h,Is layer thickness <br /> EStress Effective vertical overburden stress at mid layer depth FStress=TStress—Ueq <br /> Ueq Equilibrium pore pressure determined from <br /> i) hydrostatic from water table depth <br /> 2) user supplied profile <br /> Cn SPT Ne0 overburden correction factor Cn=(a,)'o 5 <br /> where a,'ts in tsf <br /> 05<C„<20 <br /> No SPT N value at 60%energy calculated from Qt/N ratios assigned to each 3 <br /> SBT zone <br /> (N 1)G0 SPT Neo value corrected for overburden pressure N1W=Cn.Neo 3 <br /> D(N1)so Equivalent Clean Sand Correction to(N1)6a _KsPr •f Nl),„ 7 <br /> I-KsPr <br /> Where KsPT is defined as <br /> 0 0 for FC<5% <br /> 00167-(FC-5) for 5%<FC<35% <br /> is05 for FC>35% <br /> FC-Fines Content in% <br /> (N1)ee�g Equivalent Clean Sand(Ni)Go (N1)eo�=(N1)so + A(N1)eo 7 <br /> Su Undrained shear strength-Nkt is use selectable Su- a, 2 <br /> Nk <br /> k Coefficient of permeability(assigned to each SBT zone) 6 <br /> Bq Pope pressure parameter B4eL 2 <br /> = <br /> Qt--a� <br /> Qtn Normalized Qt for Sal Behavior Type classification as defined by Qin=QY-av 4 <br /> Robertson 19W a <br /> Rfn Normalized Rf for Sal Behavior Type classification as defined by f 4 <br /> Robertson 1990 Rfrr=100%• - -`- <br /> Q1 17, <br /> SBTn Normalized Sal Behavior Type(slightly modified from that published by 4 <br /> Robertson, 1990 This version includes all the sal zones of the ongmal <br /> non-normalized SBT chart-see figure 1) <br /> Qct Normalized Qt for seismic analysis qc1 =qc•(Pa/6,)0 5 5 <br /> where Pa=atm pressure <br /> Qci N Dimensionless Normalized Qt1 qci N=qc1 t Pa <br /> where Pa=atm pressure <br /> CONE EC <br />