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i <br /> CPT Interpretations Page 4/7 <br /> Interpreted DesanpbOn Equation Ref <br /> Parameter <br /> Normalzed q for Soil Behavior Type classification as defined Q=qt—Cr. 2,5 <br /> 1 a by Robertson,1990 Cr <br /> Normalized Friction Rabo far Sol Behavior Type Fr=100%• 2,5 <br /> F, dassilicahon as defined by Robertson 1990 <br /> 1 B9— An <br /> qt—CF, <br /> Bq Pore pressure parameter where 6u=u_uM 1,5 <br /> and u=dpmmc tore Jim <br /> U„r=equ&b nwn pora poresstx'e <br /> Ic=((3 47—log Q2+(login Fr-1242)es <br /> VMiera Q—`_(qr—Cr P. + <br /> Soil index for estimating gram charactenstxs Pz X6') 3,8 <br /> And Fr is rn percent <br /> P.=afmos#mnc pressure <br /> Pi2=atmospheric pressure <br /> a vanes from 0 5 to 10 and is selected <br /> in an denabw manner based an the msLd&W Ia <br /> FC=1 75(lc22)-3 7 <br /> FC Apparent fines content(°b) FC=100 for to>3 5 3 <br /> FC=1 for Ic<126 <br /> FC=5%If 164<to<236ANDF,<05 <br /> Ic< 131 Zone=7 <br /> 131<Ic<205 Zone=6 <br /> Ic This parameter is the Sol Behavior Type zone based on the 205<Ic<2 60 Zone=5 <br /> Zane Ic parameter(valid for zones 2 tfsrxigh 7 on SBTn chart) 260<Ic<295 Zone=4 3 <br /> • 295<Ic<360 Zone=3 <br /> Ic a 3 60 Zone=2 <br /> Relative Density determined from one of the folowrng user <br /> selectable options <br /> Or a)Tian Sand See reference 5 <br /> b) Floldmun d Sand <br /> c)Scthmerhnann 1976 <br /> d)Jamw*awsla-All Sands <br /> Fncbw Angle determined from one of the folk wrrrg user <br /> selectable options <br /> PHI <br /> ¢ a) CampaneEa and Robertson See reference 5 <br /> b) Durgww&and Mttdrel <br /> c) Jarnbu <br /> State The state parameter is used to describe whether a sal is <br /> Parameter contractive(SP is positive)or d7atrve(SP is negative)at See reference 8 6,6 <br /> large strains based on the work by Been and Jctfenes <br /> f Eslgt Intermediate parameter for cal Mating Youngs Modulus,E, Based on Figure 5.59 rn the reference 5 <br /> in sands It is the Y axis of the reference chart <br /> i <br /> CPTSUMM-M9ffiodsGVMa—Rev 08-10-2004 ago <br />