Retaining wall constructed with precast products and single-sized crushed stone.
■NETIS CB-040038-A (Publication Period Ended) ■This is a retaining wall that obtained construction technology certification from the Public Interest Incorporated Foundation Civil Engineering Research Center in March 2004. ■Due to its flexible structure, it reduces the stress generated by the slight movement of the wall against soil pressure during an earthquake, thereby preventing cracking and collapse of the wall. ■The ground reaction force during an earthquake is relatively small, and it demonstrates adaptability to differential settlement of the foundation ground and backfill soil, maintaining the overall safety of the wall. ■The layer of single-sized crushed stone has extremely high drainage capacity, which inevitably stabilizes the backfill soil. ■Since there is almost no work involving rebar, concrete, or formwork at the construction site, significant reductions in construction time and improvements in cost-effectiveness can be achieved. ■The product can be used in an inverted manner, making curved construction easy. ■The stepped shape has a three-dimensional aesthetic, allowing for planting and natural greening using each step, which contributes to ecosystem preservation. ■The maximum wall height in construction records is 21m. (Please consult us regarding applicable heights) *For more details, please download the materials or contact us through our website.*
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basic information
■Design Conditions 【Type】 【Normal】 【During Earthquake】 Soil shear resistance angle φ (°) 30.0 30.0 Cohesion C (kN/m²) 10.0 10.0 Soil unit weight γs (kN/m³) 19.0 19.0 Superimposed load SA (kN/m²) 10.0 0.0 Design horizontal seismic coefficient Kh 0.00 0.15
Price information
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Delivery Time
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Applications/Examples of results
< Main Uses > Residential area national roads, tunnel entrances National parks Installation of stairs (can be installed together) S-curves (can accommodate road shapes) Creation of drainage ponds Places with a focus on landscape, such as park observation decks Small step greening Combination of drainage pipes and box culverts Disaster recovery, rapid construction (products in stock)
Detailed information
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Regarding the construction of box-type retaining walls Installation status of the bottom row
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Marking of the thickness of the filler material
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Compaction status of the backfill material 0-25 cm
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Condition of the intermediate filling material leveling.
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Compaction status of the middle/backfill material at 50-75 cm.
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End stop installation status
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Corner enlargement
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Confirmation of small segment.
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Reference: Compaction status of the "cage tensor" foundation.
CAD data（16）
| Model number | overview | File |
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| hakogata_05000.dxf |
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| hakogata_06000.dxf |
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| hakogata_07000.dxf |
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| hakogata_08000.dxf |
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| hakogata_09000.dxf |
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| hakogata_10000.dxf |
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| hakogata-green-6_08000.dxf |
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| hakogata-green-8_08000.dxf |
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| hakogata_05000.sfc |
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| hakogata_06000.sfc |
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| hakogata_07000.sfc |
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| hakogata_08000.sfc |
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| hakogata_09000.sfc |
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| hakogata_10000.sfc |
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| hakogata-green-6_08000.sfc |
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| hakogata-green-8_08000.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.