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' CPT Interpretations <br />'fA Interpreted <br /> Parameter Description Equation Ref <br /> W <br /> qct qt normalized for overburden stress used for seismic qct=qt•(Pala„')° <br />' analysis where Pa=atm Pressure 3 <br /> qt is in MPa <br /> ge1N <br /> qct in dimensionless form used for seismic analysis gc1N=qci I Pa 3 <br />' where Pa=atm pressure <br /> Kc= 10 for lc <br /> KL Equivalent clean sand correction for <i 64 <br /> gciN K.=f(!�J for l�> 164 (see reference) 3 <br />' I Kc=10for1 64<le<2 36 and Fc<0 5% <br /> gc1N° I Clean Sand equivalent q,,N gcrnks=qc:N a Kc 3 <br /> t 10=((3 47--logroQ)2+(!ogle Fr+ 1 22)2 f s <br /> i Where (ql <br /> -cr Pa A <br /> Q= pz �ap <br /> Ic Soil index for estimating grain characteristics And Fr is in percent 3, g <br /> Pa=atmosphenc pressure <br /> Paz=atmosphenc pressure <br /> n vanes from 0 5 to 10 and is <br /> selected in an iterative manner based on the <br />' resulting 1° <br /> FC=1 75(lc'25)-3 7 <br /> FC Apparent fines content(%) FC=100 for lc>3 5 3 <br />' FC--O for lc< 126 <br /> FC=5%if 164<Ic<2 6 AND Fr<0 5 <br /> Ic<1 31 Zone=7 <br /> This parameter is the Soil Behavior Type zone based on 1 31 <Ic<2 05 Zone=6 <br /> Ic Zone the Ic parameter(valid for zones 2 through 7 on SBTn 2 05<Ic<2 60 Zone=5 3 <br /> chart) 2 60<Ic<2 95 Zone=4 <br /> 295<Ic<360 Zone=3 <br /> le>3 60 Zone=2 <br /> Friction Angle determined from one of the following user <br /> selectable options <br /> PHI <br /> a) Campanella and Robertson See reference 5 <br /> b) Durgunoglu and Mitchel <br /> c) Janbu <br />' Relative Density determined from one of the following user <br /> selectable options <br /> Dr a)Ticino Sand See reference 5 <br /> b) Hokksund Sand <br />' c)Schmertmann 1976 <br /> d)Jamiolkowski-All Sands <br /> a)Based on Schmertmann's method invohving a <br /> plot of Sda„ 1(Su/av')Nc and OCR <br /> OCR Over Consolidation Ratio-2 methods available b)Based on q1- 5 <br /> OCR-K. 6. <br /> where an average value of k=0 3 is used <br /> State The state parameter is used to describe whether a soil is <br /> Parameter contractive(SP is positive)or dilative(SP is negative)at See referenoe 9,7, 5 <br /> large strains based on the work by Been and Jefferies <br /> EGG <br /> ICPTSUMM-1 20C-Rev 02-07-31 <br />