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GPT Interpretations Page 3/7 <br /> Interpreted <br /> Paranheber - Equation Ref <br /> Averaged Gamma Cohorts(than data is not always available ate- GAMMA <br /> A Gasnnm since It is a specialized test regtrhing an addbxtW module) "I-, <br /> 1=1 when inferpm(ahans are atone at each pant <br /> SBT Soil Behavior Type as defined by Robertson and Campanella See Figure 1 2 5 <br /> 1 SSTn Norrmalumd Sod Behavior Type as defined by Robertson and See Figure 2 2,5 <br /> ICampanella <br /> SBT-80 �rzed soil behavior type based on the Bq See Figure 5 7(reference 5) 2, 6 <br /> SBT-BQn Normalized Soil Behavior base on the Bq paraineter See Figure 5A(reference 5)or Figure 3(reference 2 5 <br /> l Coefficient of permeability(assigned to each SBT zone) 5 <br /> Unit Weight of sold determined iron one of the fallowing user <br /> selectable options <br /> U Wt 1) uniform valued See references 5 <br /> 2) value assigned to each SBT zone <br /> 3) user supplied unit weight profile <br /> T Stress Total vertical overburden stress at Md Layer Depth <br /> 6' <br /> A layer is defined as the averaging mfervat specified by Lha wfrevts r is layer nidi wergtst <br /> 6v user For data interpreted at each point the ARd Layer Depth h,is layer thnclmess <br /> is the same as the recorded depth <br /> For hydrostatic option <br /> Equilibrium pone pressure datermrned from one of the <br /> foilovwng user selectable options ut=y•(D-DUeq ) <br /> 1) hydrostatic from water table depth whine y. s niteclweight <br /> pore pressure <br /> . 0 is unit weght of water <br /> 2) user suPP�Pr's Ass the aunerht depth <br /> D.m the depth to the water table <br /> E Stress <br /> 6v Effective vertu overburden stress at Md layer Depth Estress=7'atress-u q <br /> an=(a)-a5 <br /> Cn SPT Nao overburden correction factor where q'is in tsf <br /> 05<Ch<20 <br /> SPT N value at 60%energy calculated from ON ratios <br /> NW assigned to each SBT zone This method has abrupt N See Fres 1 4,5 <br /> value charges at zone bourdaries <br /> (N,)eo SPT Nso value corrected for overburden pressure (N,}w=Cn.Neo 4 <br /> Nook SPT Nw values based on the Ic paraneter (gt/pa)J Nno=8 5(1-W4 6) 5 <br /> T <br /> (�) SPT Neo value corrected for overburden pressure(using Nm 1) (Nmc=Gn•(Nwic) 4 <br /> 1, User has 2 op4ons 2) q jj(N,)wtc=8.5(1-IcJ4 6) 5 <br /> 1) (N,)m lc=a+B((N,)wfc) 10 <br /> 2) (N4eWc=Kspr ((NtWc) 10 <br /> J 3) q.,.y(N,)m_ic=8 5(1--IcJ4 8) 5 <br /> (Nr)eovtc Clean sand equivalent SPT(N,)eolc User has 3 options FC=5% a=0, a=i 0 <br /> FC=35% a=50, 15=1 2 <br /> 5%<FC<35% a=exp[i 76--(19WO] <br /> I5=[0 99+(FO-5/1000)1 <br /> i <br /> CPTSUMM-MethodsGV122a-Rev 08-10-2004 <br />