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I <br /> CPT Interpretations Page 417 <br /> FInterpreted Description. Equation Raf <br /> Parameter <br /> Normalized%for Soil Behavior Type classification as defined Q,=9t—Q• 2.5 <br /> Bit by Robertson,1990 u <br /> Normalized Friction Ratro for Soil Behavior Type Fr=100%- 2 5 <br /> F, classification as defined by Robertson,1990 <br /> Aa <br /> Bq=gr�6Y <br /> Bq Pore pressure parameter where Au=u—ups 1,5 <br /> and u=dynamic pare pressrue <br /> L4,;=equdibdum pore pressure <br /> to=((3 47—log.(;V+009.Fr--1 22?1" <br /> 4Nhera j2=r4t—Q.� ,� <br /> Il p' Cr 3.8 <br /> Sod index for estimating grain characteristics And Frrs in percent <br />' P.=a&wsphonc prossure <br /> P.2=aBnosphenc pressure <br /> n yarles from o 5 to 10 and is selected <br /> in an rteraHw mannan biased on the resuftV 1. <br />' <br /> FC--I 75(ic")-3 7 <br /> arent fines content °16) <br /> FC--100 for c >3 5 3 <br /> FC <br /> �°�PP ( FCS for is<126 <br /> FC=5%If164<to<235ANDF,<05 <br /> to< 131 Zone=7 <br /> 131 <k:<205 Zone=6 <br /> This parameter is the Soil Behavior Type zone based on the 2 05<lc<2 60 Zone=5 3 <br /> III zone <br /> . Ic parameter(valid for zones 2 through 7 on SBTn Chart) 260< Ic<295 Zone=4 <br />' 295<Ic<300 Zone=3 <br /> Ic>3 60 Zone=2 <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)Schmartmann 1978 <br /> d)Jamblkawsta-AEI Sands <br /> Fdctm Angle determined from one of the following user <br /> selectable options <br />' PHI 5 <br /> � a) Campanella and Robertson See reference <br /> b) Durgunoglu and MkJwA <br /> c) Janbu <br />' State The state parameter is used to describe whether a soil is <br /> Parameter contractive(SP is posbve)or dilative(SP is negative)at See reference 8,$,5 <br /> large strains based on the work by Been and Jelfenes <br />' Es/qtintermediate parameter for calculating Youngs Modulus,E, Based on Figure 5.59 in the reference 5 <br /> in sands tt is the Y axis of the reference chart <br /> I <br /> I <br /> �GCa <br /> ICPTSuMM-MethodsGV122a—Rev 08-10-2W4 <br />