Hume Arch Culvert   Applications Bridge crossing Over waterway, or vehicular / pedestrian underpass Railway crossing over waterway, or vehicular / pedestrian underpass Drainage / irrigation channels Conduit for utility services(e.g. electrical cables / oil & gas pipelines) Space creation over existing open drain as parking lots / open area Design Considerations Reinforced concrete design to BS5400 : Part 4 : 1990 or BS8110 : Part 1 : 1997 Soil-structure interaction is considered in the structural analysis model Hume Arch Culverts (HAC) are available in three standard classes, with each catering for a particular range of fill heights including pavement. Design live load requirements for all three classes are in accordance with BS5400 : Part 2 : 1978 & BD 37/88 Standard Class Fill Height Above Crown (m) S2 0.5 (minimum) - 2.0 (maximum) S3 3.0 (maximum) S4 4.0 (maximum) Design can also be customized to suit fill heights exceeding 4 meters including pavement; and / or design live load requirements beyond those specified in BD 37/38 Hydrostatic pressure is eliminated by the provision of a drainage system along the earth side of both foundation footings Characteristic concrete strength at 28 days - Grade 40 Concrete cover to reinforcement      - Earth face - 50mm                                                        - Air face - 40mm Backfill material : sand or other suitable soil material subject to Engineer's approval Features Smooth arch profile projects an aesthetically pleasing structure Monolithic structure with single or multiple span arch Starter bars can be provided at end units for casting of in situ spandrel walls and wing walls Units available in standard widths optimised for ease of transportation and installation     Crossing |Page 1 | Page 2 | Page 3 | Page 4 | Page 5   Top HUME CONCRETE MARKETING SDN BHD (8411-T) Level 2, Bangunan Pan Global, No. 1A, Jalan Tandang, P.O.Box 21, 46700 Petaling Jaya, Selangor. Hot-line: (603) 7785 5282 Tel: (603) 7783 3068 Fax: (603) 7785 1823 E-mail: Adam Hussein (HIMB-PJ)