Technical Resource Guide_WEB_BEL25-D-516650 - Page 65 of 84

65 | belgard ® product installation guide | belgard.com | 877-235-4273 Estimating Chart Geosynthetic Belair Wall ® Retaining Walls 3:1 CREST SLOPE I� 0 cfJ 0 :3 .,.., 0 cu : 0 0..-< I ii-) ]' � g � 00 0 cu : N 0..-< I i;o Estimating Chart for Geosynthetic Reinforcement with Belair Wall ® Retaining Wall Systems Clay and Silt Soils <p = 26 ° y = 120 pcf(19 kN/m 3 ) 3: 1 Crest Slope I I I I I I I �g:[��� D I I I I I I I Silty / Clayey Sand Soil <p = 30 ° y = 120 pcf(19 kN/m 3 ) Clean Sand and Gravel Soil <p = 34 ° y = 120 pcf(19 kN/m 3 ) � REINFORCEMENT ----£ NU REQUIRED