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.r <br /> (N,)GO = 46.D? Eqn. 3-3 <br /> where D,, is in decimal. Representative fines contents were estimated for each granular layer based on <br /> the borehole log descriptions and the clean sand blow count for liquefaction residual strength estimation <br /> was calculated using the following equation(Idriss and Boulanger 2008): <br /> (NI)6ocs-sr =(N,)60 +A(N,)6ocs-sr Eqn. 3-4 <br /> Where A(N1)60c,._,r is the blow count adjustment for fines content(Seed 1987). The representative fines <br /> content for the SM layers was taken as 25 percent and a corresponding value of A(N,)60cc—cr =2 was <br /> used. For SP-SM soils a fines content of 8%and A(N,)60cs-sr = 1 was used. The resulting parameters <br /> are summarized in Table 3-1. For the granular layers the internal angle of friction 0 was estimated using <br /> the relationship shown in Figure 3-1 from NAVFAC DM 7.1: <br /> Table 3-1 Summary of Soil Layers and Data <br /> From CPeT-IT Data <br /> Analysis Intermediate Design Values <br /> Typ. <br /> Typ.a )6o`5- <br /> Material Name Typical USCS (tgf)t range Range DR (Ni)60 FC A(Ni)6ocs-sr (Nls <br /> r <br /> (�) Su (tsf) <br /> FILL 0-SP-SM SP-SM, SM 141 50-80 na 60% 17 na na na <br /> FILL 1—SM SM,SP-SM 29 30-40 na 35% 6 20 2 8 <br /> FILL 2—ML ML 10.6 na 0.5-0.6 na na na na na <br /> FILL 3—SM SM, SP-SM 29 30-40 na 35% 6 20 2 8 <br /> Recent Deposits SP-SM 112 50-60 na 55% 14 8 1 15 <br /> TILL 1-SP-SM SP-SM 387 87-98 na 92% 39 8 na na <br /> 45° <br /> oo, <br /> 4- 40 ,, <br /> ci TILL - T5 <br /> c -* FILL_0�' — / <br /> Q 35 -- 5 0 — <br /> — LUnified soil <br /> c J classification <br /> O ML—— —nd p <br /> �' 30°_ n this foNe _.S — For cohesionless <br /> If: - —1 _0 __ soils without <br /> 1 plastic fines <br /> 2 5° <br /> 1.2 1.4 1.6 1.8 2.0 2.2 2.4 <br /> Dry Unit Weight, yd /yw <br /> Figure 3-1 Correlations Used for Friction Angle Estimate <br /> Liquefied residual shear strength values were estimated using the correlations with (N,)60cs_,r from Idriss <br /> 41 <br />