: A DESIGN CALCULATIONS FOR CULVERT 6.0 DESIGN OF PRECAST TOP COVER Design Data Top of road = TOR = 2.45 m Invert level of culvert = IL = 0.75 m Clear span = L = 6000 mm Thickness of wall = Tw = 400 mm Thickness of base slab = Tbs = 500 mm Effective span of top cover slab = Le = 6400 mm Thickness of top cover slab = Tts = 500 mm Characteristic strength of concrete = fcu = 30 N/mm2 Characteristic strength of steel = fy = 360 N/mm2 Depth of soil inside culvert = D = 0.00 m Clear cover = cmin = 25 Coefficient of active lateral earth pressure Ka = 0.42 Coefficient of earth pressure at rest Ko = 0.593 Coefficient of passive lateral earth pressure Kp = 2.37 = 24 kN/m3 mm Soil Data Density of concrete = 18 kN/m3 Safe Bearing Capacity SBC = 300 kN/m2 225 gs 225 Density of soil 6790 TOR 2.4 PRECAST COVER SLAB TOC 5 400 TYPICAL SECTION OF CULVERT 0.750 DOCUMENT NO : JI-187A-SA3-20-ECV-CAL-005 Revision No.
