Products that meet the standard specifications of the National Box Culvert Association and the recommended specifications of JIS A 5372.
■It is a precast concrete box culvert made of reinforced concrete according to the National Box Culvert Association standards, following the recommended specifications of JIS A 5372. ■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. *Additional considerations can be made outside of the above design conditions.
Price information
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Delivery Time
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Applications/Examples of results
Waterways, 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 |
catalog（1）
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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 and foster a free and open corporate culture through talent development and fair personnel practices. 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.