ホクエツ関東 List of Products and Services

The "Sokobasu (S-VS)" is a concrete secondary product that enables immediate backfilling by integrating the base plate, with vertical side wall shapes that allow for easy compaction. The 1-meter cover plate reduces the installation effort compared to U-shaped gutters to one-fourth, achieving a shortened construction period. Additionally, by providing a gentle V-shaped slope at the top, it allows for rapid rainwater collection. With its distinctive V-shaped base plate design, it possesses high flow performance, ensuring flow velocity even during light rain. 【Features】 ■ Improved workability ■ Rapid drainage and collection ■ High flow performance ■ Universal design ■ Low noise, low vibration *For more details, please download the PDF or feel free to contact us.

• Road construction
• Gutters and U-shaped gutters

The "HSB method" is a construction technique that ensures watertightness by filling the joints of concrete components with a specialized sealing material known as "high-elastic adhesive sealing material" from the inside, taking into account ground deformation due to seismic activity and other factors. The method is applicable to typical examples such as precast concrete box culverts and large reinforced concrete flumes. Additionally, it can be applied to concrete structures where the displacement of the joints required by design falls within the deformation range specified by this method. 【Features】 ■ High-elastic adhesive sealing material ■ Watertightness against joint shapes and joint displacement ■ Joints that can withstand Level 1 and Level 2 seismic motions in sewer pipelines *For more details, please refer to the PDF materials or feel free to contact us.

• Waterproofing Agent
• Other civil engineering works
• Civil Engineering Method

"HS Bond" is a high-elasticity sealing material that is a one-component modified silicone with high strength and elongation. It complies with the quality standards for joint repair methods outlined in the "Manual on Repair and Reinforcement Works for Agricultural Water Facilities [Open Channel Repair Edition] (Draft)." Additionally, it adopts an environmentally friendly container called "Eco Cart" for environmental considerations, is easy to handle as a one-component system, and offers excellent workability with stable quality. 【Features】 ■ High-elasticity sealing material that is a one-component modified silicone with high strength and elongation ■ Primer is applied before joint filling ■ Durable against acids, alkalis, and salts, making it suitable for sewage and seawater environments ■ Easy to handle as a one-component system, offering excellent workability and stable quality ■ Environmentally friendly container "Eco Cart" adopted for environmental considerations *For more details, please refer to the PDF materials or feel free to contact us.

• Waterproofing Agent
• Other civil engineering works
• Civil Engineering Method

We would like to introduce our "Large Box Culvert." This product is a large box culvert with internal dimensions of 3,100×1,500 to 4,000×4,000. The precasting of site-cast box culverts offers benefits such as reduced construction time, improved safety, and ensured quality. 【Features】 ■ Internal dimensions: 3,100×1,500 to 4,000×4,000 ■ Soil cover: 0.2m to 3.0m ■ Design standard strength: 40N/mm² ■ Allowable compressive stress: 14N/mm² ■ Allowable shear stress: 0.55N/mm² *For more details, please refer to the PDF document or feel free to contact us.

• Piping materials (concrete pipes)
• Reinforced concrete structural systems (including PCa)

We would like to introduce our "Super Large Box Culvert." This product is a super large culvert that is divided into two parts, with an internal width of 4000 to 9000 mm and an internal height of 2000 to 4000 mm. The precast option for on-site box culverts offers benefits such as reduced construction time, improved safety, and ensured quality. 【Features】 ■ Super large culvert divided into two parts with an internal width of 4000 to 9000 mm and an internal height of 2000 to 4000 mm ■ Design conditions - Live load: T-25 - Soil unit weight: 18 kN/m3 - Coefficient of static earth pressure: 0.5 ■ Compliance guidelines: Japan Road Association "Guidelines for Road Earthworks Culvert Construction" *For more details, please refer to the PDF document or feel free to contact us.

• Piping materials (concrete pipes)
• Reinforced concrete structural systems (including PCa)

■Improvement of Surface and Aesthetics By using a tile pattern for the surface, it blends seamlessly into the urban landscape of sidewalks, streets, parks, and squares, enhancing aesthetics while the tile pattern also provides slip resistance. ■No Noise and No Vibration Due to its box-type design, it does not produce rattling noise or corner chipping caused by vehicle traffic, unlike traditional covered side ditches. ■Effective Flow with Small Amounts of Water The shape of the bottom of the waterway is circular, allowing for sufficient water depth even with a small amount of water, resulting in high flow capacity. ■Variable Slope Compatibility The height of the side walls is in 10 cm increments, making it easy to achieve the desired drainage slope. ■Reliable Installation and Smooth Construction The vertical shape of the side walls facilitates easy backfilling, allowing for smooth construction even in narrow sites. Additionally, no cover installation is required. ■L-shaped Street Ditch I-shaped Inlets and Pedestrian-Vehicle Boundary Blocks For the Kanto area: Multi-inlets are available. Pedestrian-vehicle boundary blocks can be installed with any type.

• Gutters and U-shaped gutters
• Road construction
• Road facilities

【Gutter Body】 - This product features holes for infiltration on the side walls of the universal gutter. - By using this product, water can infiltrate underground, restoring the natural water retention and infiltration capabilities, creating an environmentally friendly setting, and allowing for the reduction of cross-sectional size and the minimization of adjustment ponds associated with development activities. 【Base Plate】 - It can be used in combination with free gradient gutters. - Openings are provided in the bottom plate.

• Rainwater infiltration facilities
• Gutters and U-shaped gutters
• Road construction

It is a product of 1m² per unit, and it stands independently in 5 minutes, making the installation speed significantly faster. *For more details, please visit our website or feel free to contact us.*

• Concrete Retaining Wall
• Stacking blocks
• Road construction

■Variety of Product Lineup To respond to the diversification of needs due to differences in loading conditions and internal friction angles of soil, we offer a wide range of products. ■Comprehensive Quality Assurance through Minister of Construction Certification By obtaining certification from the Minister of Construction based on Article 15 of the Enforcement Order of the Land Development and Regulation Act, we have established a robust quality assurance system. ■Economical Cross-Section Structure The structure features a rational cross-section, making it extremely lightweight, easy to work with, and economically advantageous. ■Shortened Construction Period Compared to block stacking and cast-in-place retaining walls, our system allows for simple mechanical construction that does not require skilled labor, as it can be installed on the foundation and backfilled, significantly reducing the construction period. ■Effective Use of Land The wall is nearly vertical, allowing for maximum effective use of land up to the property boundary compared to block stacking and similar methods. ■Consideration for Aesthetics Custom surface patterns and decorative finishes are possible, allowing the retaining wall to blend seamlessly into the landscape. ■Fence Installation Possible, Consideration for Safety For Type III, fence installation is also possible, making it a product with particularly high safety features. ■Service Areas Please contact us regarding areas outside of our service region.

• Concrete Retaining Wall

■This product is designed to reduce the maintenance and management of embankments. It can also be used on road shoulders. ■The weed control effect near the slope ensures visibility at the top of the embankment and safety for passage. ■By dividing the A component and B component and using a hinge structure at the connection, it can fit securely to the slope and accommodate various slope gradients. ■Changes to the embankment due to earthquakes or floods can be quickly assessed through UAV or similar imaging.

• Tensioning and connecting blocks

One block is large at 2m², and in addition, it is connected at the four corners with metal fittings, which can significantly shorten the construction period. There are also products that have obtained hydraulic characteristic values.

• Tensioning and connecting blocks

■ We have incorporated universal design into the conventional street type and renewed it. ■ The conventional street type has been standardized to sizes 300 and 400. It can accommodate the previous flow of 300×300 with a 250 type. ■ The lid plate is set to L=1m, and it is a low-noise type that prevents rattling and noise caused by vehicle traffic. ■ The vertical side walls make compaction easy and enhance workability.

• Gutters and U-shaped gutters
• Road construction
• Road facilities

■Response to Sites Where Crane Construction is Not Possible For products that require crane construction, such as box culverts and large waterways, when direct construction with a crane is not feasible, a lateral pulling method is employed where the product is loaded onto a lateral pulling cart and transported and installed at the destination. ■Lateral Pulling Method with Simple Equipment Compared to traditional lateral pulling and installation methods for concrete secondary products, this method allows for construction with the same time and precision using simpler equipment. ■Improvement in Economic Efficiency By not using large transportation equipment, the construction speed remains the same as traditional lateral pulling methods, thus enhancing economic efficiency. ■Response to R-shaped Construction Without the need to embed grooves or steel materials in the foundation, lateral pulling transport including R-shaped and bent construction can be achieved simply by attaching guide rails. ■Response to Narrow Sites By using hand-extended beams, construction is possible in narrow sites with a width of the product plus 20 cm.

• Road construction
• Transport machinery
• Special Construction Method