| DESIGN CONSIDERATION & SPECIFICATIONS |
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1.
(a)
(b)
(c)
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Loading consideration:
BS 5400 : Part 2 : 1978 modified by (b)
Departmental Standard BD 31/87 - Buried Concrete Box Type Structure issued by Department of Transport (UK) - Highway and Traffic
JKR LTAL (Long Term Axle Load) and SV (Special Vehicle) requirements. |
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| Proof load testing for Standard Size Box Culvert |
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Reinforced concrete design:
BS 5400 : Part 4 : 1984
Minimum compressive concrete cube strength shall be:
At 28 days = 40N/mm2
Depth of Fill:
Standard Size Box Culvert
(width from 600mm-1800mm).
2m depth of fill inclusive of pavement plus 45 units of HB vehicle primary live loads.
Super Size Box Culvert
(width from 2100mm-3650mm)
4m depth of fill inclusive of pavement plus 45 units of HB vehicle primary live loads.
* Soil parameters used in the design:-
- Coefficient of the earth pressure of rest = 0.5
- Bulk density of the soil = 19kN/m3 |
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| Box Culvert without Dry Weather Flow |
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| Dimensional view |
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| Box Culvert complete with Dry Weather Flow |
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| Dimensional view |
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