Products that meet the national box culvert association standard specifications and the recommended specifications of JIS A 5372.
■It is a reinforced concrete precast box culvert of the National Box Culvert Association type, recommended according to JIS A 5372 specifications. ■Standardized dimensions range from width 0.6m × height 0.6m to width 3.5m × height 2.5m.
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basic information
【Design Conditions】 Soil Cover: 0.2m to 3.0m Dead Load Unit Weight of Reinforced Concrete: 24.5 kN/m³ Unit Weight of Soil: 18.0 kN/m³ Unit Weight of Asphalt: 22.5 kN/m³ Live Load (Road Crossing): T-25t Horizontal Earth Pressure Coefficient: 0.50 Groundwater Level: The maximum groundwater level is set at 50cm below the road surface. Applicable Ground: In principle, it should be good ground of at least ordinary ground quality. *For specific design details, refer to the Precast Box Culvert Design and Construction Manual by the National Box Culvert Association. *Consideration can also be given to conditions outside the above design criteria.
Price information
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Delivery Time
※Please feel free to consult with us.
Applications/Examples of results
Waterway, etc.
Line up（2）
| Model number | overview |
|---|---|
| Type 1 | In the case of general structures |
| Type 2 | In the case of structures that must particularly consider cracking |
CAD data（20）
| Model number | overview | File |
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| 0600-0900 DXF |
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| 1000-1100 DXF |
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| 1200-1400 DXF |
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| 1500-1800 DXF |
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| 2000-2200 DXF |
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| 2300-2400 DXF |
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| 2500 DXF |
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| 2800 DXF |
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| 3000 DXF |
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| Standard cross-section DXF |
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| 0600-0900 SFC |
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| 1000-1100 SFC |
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| 1200-1400 SFC |
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| 1500-1800 SFC |
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| 2000-2200 SFC |
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| 2300-2400 SFC |
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| 2500 SFC |
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| 2800 SFC |
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| 3000 SFC |
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| Standard cross-section SFC |
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Company information
Our company, under the belief of contributing to society through the development of social infrastructure, constantly strives for quality improvement and technical advancement. With the conviction that business is about people, we respect humanity, engage in talent development and fair personnel practices, and cultivate a free and open corporate culture. We aim to deepen mutual understanding and trust, working together towards the development of the company and the enhancement of welfare, while concentrating all our efforts on stabilizing and expanding our management foundation.