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MSEW Mechanically Stabilized Earth Walls Riverview <br />SOIL DATA <br />REINFORCED SOIL <br />Unit weight, 7 125.0 lb/ft <br />Design value of internal angle of friction, 34.00 <br />RETAINED SOIL <br />Unit weight, y 125.0 lb/ft 3 <br />Design value of internal angle of friction, 32.00 <br />FOUNDATION SOIL (Considered as an equivalent uniform soil) <br />Equivalent unit weight, y equiv. 125.0 lb/ft 3 <br />Equivalent internal angle of friction, oequiv. 32.0 ' <br />Equivalent cohesion, C equiv, 0.0 lb/ft 2 <br />Water table does not affect bearing capacity <br />LATERAL EARTH PRESSURE COEFFICIENTS <br />Ka (internal stability) = 0.2827 (if batter is less than 100, Ka is calculated from eq. 15. Otherwise, eq. 38 is utilized) <br />Ka (external stability) = 0.3073 (if batter is less than 10', Ka is calculated from eq. 16. Otherwise, eq. 17 is utilized) <br />BEARING CAPACITY <br />Bearing capacity coefficients (calculated by MSEW): No = 35.49 N y= 30.21 <br />SEISMICITY <br />Maximum ground acceleration coefficient, A = 0.330 <br />Design acceleration coefficient in Internal Stability: Kh = Am = 0.370 <br />Design acceleration coefficient in External Stability: Kh—d = 0.186 => Kh = Am = 0.235 <br />(Kh in External Stability is based on allowable displacement, d = 25 mm. using AASHTO 2002 equation) <br />Kae ( Kh > 0 ) = 0.4322 Kae ( Kh = 0 ) = 0.2705 A Kae = 0. 1617 <br />Seismic soil -metal mats friction coefficient, F* is 80.0% of its specified static value. <br />Riverview Pa a <br />Coovright 0� 1998-20 16 ADAMA En--irwaina. Inc. License number MLZ,30110 <br />