Table 3.2 Soil Properties in Backfill of MSE Wall Friction Hydraulic Wall backfill USCS Description Angle () Conductivity Range Classification Classification Range (cm/s) Sand, Gravel, Good 32º - 36º 102 - 10-2 Stone Silty Sands, Clayey Moderate SM,SC 28º - 32º 10-2 - 10-6 Sands Silts, Low Plastic Difficult ML,CL,OL 25º - 30º 10-6 - 10-10 Clays High Plastic Silts Bad CH,MH,OH,Pt 0º - 25º 10-6 - 10-10 and Clay, Organics
Table 3.2 Soil Properties in Backfill of MSE Wall Wall backfill Classification Description USCS Classification Friction Angle () Range Hydraulic Conductivity Range (cm/s) Good Sand, Gravel, Stone 32º - 36º 102 - 10-2 Moderate Silty Sands, Clayey Sands SM,SC 28º - 32º 10-2 - 10-6 Difficult Silts, Low Plastic Clays ML,CL,OL 25º - 30º 10-6 - 10-10 Bad High Plastic Silts and Clay, Organics CH,MH,OH,Pt 0º - 25º 10-6 - 10-10
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