Technical Resource Guide_WEB_BEL25-D-516650 - Page 64 of 84

64 | belgard ® product installation guide | belgard.com | 877-235-4273 Estimating Chart Geosynthetic Belair Wall ® Retaining Walls 250 PSF SURCHARGE I� g � .,.., 0 cu : 0 o- 1 ]' � g � 00 0 CU : N o- 1 Estimating Chart for Geosynthetic Reinforcement with Belair Wall ® Retaining Wall Systems 250 PSF Surcharge Clay and Silt Soils cp = 26 ° "f = 120 pcf(19 kN/m 3 ) 4.0' 1200mm) 4.0' 1200mm) 4.5' 1350 mm) 4.5' 1350mm) 4.5' 1350mm) 5.5' 1650 mm) 5.5' 1650mm) 5.5' 1650mm) 5.5' 1650 mm) 5.5' 1650 mm) I I REINFORCED / SOILZONE / I I I Silty / Clayey Sand Soil cp = 30 ° "f = 120 pcf (19 kN/m 3 ) -r mm) 4.0' 1200mm) 4.0' 1200 mm) 4.0' 1200mm) 4.0' 1200mm) 4.0' 1200 mm) 5.0' 1500mm) 5.0' 1500mm) 5.0' 1500 mm) 5.0' 1500 mm) 5.0' 1500mm) Clean Sand and Gravel Soil cp = 34 ° "f = 120 pcf (19 kN/m 3 ) � REINFORCEMENT � - . - . REQUIRED 4.0' 1200 mm) 4.0' 1200 mm) 4.0' 1200mm) 4.0' 1200 mm) 4.0' 1200 mm) 4.5' 1350 mm) 4.5' 1350mm) 4.5' 1350mm) 4.5' 1350 mm) 4.5' 1350 mm)