昭和コンクリート工業 List of Products and Services

"OGS Flume" is a three-sided water channel with a drop lid design. The standard sizes are a top width of 0.6m × height of 0.6m to a top width of 1.5m × height of 1.5m. Please feel free to contact us when you need assistance.

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■This is a standard from the Agricultural Civil Engineering Association. ■The base plate will be constructed using cast-in-place concrete. ■The width of the waterway can be freely set within the standards. ■The types are classified based on the superimposed load acting on the horizontal line at the top of the vertical wall and the soil conditions.

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■Compliant with association-type culvert cross-sections! Various processing options are available, including J-types with different side wall heights, top edge beveling, and openings. ■Various processing options are available, including J-types with different side wall heights, top edge beveling, and openings. ■Standardized dimensions of width 1.0m × height 1.0m to 3.5m × 2.5m.

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■It is used for field maintenance and land development. ■There are two types: Type 1 for butt joint method and Type 2 for socket method.

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■It is used for irrigation channels for agricultural land development. ■The socket is not protruding from the base plate and is flat, making installation easy.

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■The drainage holes are arranged in a staggered manner, which enhances the drainage function. ■The joint sections are interlocking, resulting in good workability.

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■ By utilizing precast technology, we achieve significant reductions in construction time and improvements in productivity. ■ The use of hardware connections accelerates construction and reduces labor on-site. ■ It can accommodate drop heights of 500 to 1000 mm. ■ It is compatible with drainage flumes ranging from HF300 to HF900. ■ The standard extension for the waterway section is 4 meters for drainage flumes below HF500 and 6 meters for those above HF600. ■ By adjusting the extension and using a stepped drop, it can accommodate longitudinal slopes and effectively reduce flow velocity. *We can also consider specifications other than those listed. Please consult us.*

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■It is an assembly type. ■Construction is easy and can shorten the construction period. ■Components can be reused. ■It is also possible to accommodate folding points and curves.

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■ By installation, we will reduce "ineffective discharge" and achieve water resource conservation. ■ By installation, we will reduce "ineffective discharge" and achieve water resource conservation. ■ The lifting handle makes it easy to discharge accumulated sediment and other materials. ■ By eliminating "overflow," we will not only eliminate "waste water" but also suppress "nutrient runoff," achieving water resource conservation and reducing environmental impact. ■ Since communication is not conducted, base station installation and communication volume are unnecessary. The simple structure is less prone to failure and easy to repair.

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■The method of stacking fishway blocks in an oval shape significantly reduces the site area. ■The product shapes used for the curved and straight sections are standardized, which enhances workability. ■By creating a track shape with straight sections between the semicircular parts, it facilitates a pool flow condition that makes it easier for fish to ascend. ■The gradient of the fishway has the semicircular return section at level and the straight ascending section at a gentle slope of 1/10, improving ascent efficiency compared to a circular shape. ■The partition walls utilize an ice harbor method that accommodates small fish species. ■By rounding the overflow section of the partition wall, it creates a submerged flow that is easier for fish to ascend. ■Overflowing at the fishway outlet section adjusts the flow rate of the fishway. ■Light windows are installed to ensure adequate illumination.

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■This product can uniformly form a soft overflow section curve that is easy for fish to ascend. ■When the optimal overflow water depth exceeds 10 cm, excess water flows over the side walls and is eliminated, automatically stabilizing the flow conditions. ■It forms a fishway installed on a sloped foundation (1/8 to 1/10 gradient). ■The side walls at the top of the partition weir have a rounded raised shape, preventing fish from jumping out during their ascent. ■By installing it on a PC girder, it is also possible to construct a bridge-type switchback fishway.

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This is a fish nest block that has a shape resembling a cut top slab and upper side walls of a box culvert. It creates natural-like depressions, making it suitable for the ecological environment of aquatic life. The block has good water and light permeability, making it conducive to the growth of aquatic plants, algae, and plankton. The inflow and outflow of sediment is relatively easy, which helps prevent functional degradation. By laying stones on the bottom slab, a natural environment is formed, suitable for the activities and spawning behaviors of aquatic life. Its stepped structure helps prevent water accidents caused by falls and slips, and provides a platform for cleaning operations within rivers. Patterns can be added to the front wall, harmonizing with the landscape. The slope can be freely selected (1: 0.5 to 2.0). Dead water areas are conducive to the growth of reeds and other vegetation, creating environments for bird nesting. It is easy to install and does not require specialized skills such as those needed for block work. It can be used not only as a fish nest but also as a fish passage.

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■Early flood prevention measures are possible. ■The impact on the surrounding environment can be minimized. ■It accommodates product heights of 1.1 to 1.5 meters. ■No on-site poured concrete is required. ■Easy installation, shortened construction period, and labor-saving on-site work can be achieved. ■The backfill height is set low, adopting a shape that minimizes the impact on existing structures. ■It has strong integrity with three reinforced fittings. ■Waterproofing between products is ensured by sealing materials.

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■This is a slab for crossing water channels, such as roads and farm roads. ■By shaping it into a π shape, we have achieved weight reduction compared to rectangular RC slabs. ■You can choose the design load from T-6t, T-10t, and pedestrian load (5.0 kN/m²).

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■This is a slab for crossing water channels such as farm roads. ■The design load is only T-6t. ■The product width is 50cm, making it lightweight, and it can accommodate widths in 0.5m increments. ■The maximum applicable span for the slab is 3.5m.

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■The design load can accommodate pedestrian loads (5.0 kN/m²) and vehicle loads, etc. ■The basic width of the RC and PC slabs is 1.0 m. The thickness varies depending on the load. ■The maximum span for RC slabs is approximately 4.0 m, while for PC slabs it is approximately 7.0 m. ■The standard concrete strength is σck = 40 N/mm².

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■ This is a retaining wall and soundproofing panel according to NEXCO (formerly JH) specifications. ■ It is also possible to consider additional design conditions separately.

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■There are many aspects that can be addressed with factory-made products, allowing for a shortened construction period. ■Measures against salt damage are possible, and durability is excellent. ■It has high rigidity and toughness, resulting in a stable structure. ■It is possible to reduce damage from disasters and quickly restore damaged areas. ■We can propose at a scale with a high local return rate.

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The "Precast Sleeve Pipe Block" is a method for strengthening embankments, installed around bridge piers to prevent the transmission of vibrations from the piers during an earthquake. Products in circular or rectangular shapes are used vertically according to the shape of the bridge pier, creating a gap around the pier. This absorbs the relative displacement between the pier and the embankment, mitigating the impact on the embankment. 【Construction Procedure】(Step-by-step for each layer) (1) Delivery of materials (2) Assembly of U-shaped components (R components) (3) Joining treatment of components (4) Assembly of rectangular components (5) Pulling the product closer (6) Injection of upper and lower mortar (7) Installation of rubber plates (8) Completion of one layer

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■The toilet environment can be quickly secured as it can be used immediately after the temporary tent booth is set up. ■The entrance step can be minimized, making it easier for those requiring assistance to use. ■The installation of large temporary tent booths allows for wheelchair access. ■The adoption of PCaBOX enables construction in a short period. ■The underground box cross-section can be selected according to the required capacity.

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■ The upper part can be used as a schoolyard, parking lot, park, etc. ■ A significant reduction in construction time is possible. ■ This leads to a reduction in total costs. ■ The retention basin will serve as a disaster prevention base during earthquakes. ■ By replacing the bottom slab with crushed stone, it can also be used as an infiltration facility.

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■The main body material can be easily installed manually, and the side panel material can be attached with a single touch. ■Utilizing the communication structure inside the tank allows for cleaning operations using maintenance tools (self-propelled cameras, vacuum hoses), resulting in excellent maintainability. ■This material can be delivered to the site without using pallets, eliminating the need for pallet collection and industrial waste disposal after installation. ■The product complies with Environmental Agency Notification No. 46 "Environmental Standards Regarding Soil Contamination" and RoHS standards.

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■The member shape is based on the design guidelines of the Hokuriku Regional Development Bureau (σck=60N/mm2). ■Member selection is carried out considering load conditions, road width, and construction height limits, making it compatible with all roads. ■The structural types can be broadly classified into three categories: - Simple beam type (1 hinge 1 roller) - Inverted L type (1 fixed 2 hinges) - 2 fixed connection type (2 fixed 2 hinges)

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■The member shape is based on the design guidelines of the Hokuriku Regional Development Bureau (σ ck=60N/mm2). ■Member selection is carried out considering load conditions, road width, and construction height limits, making it compatible with all roads. ■The structural types can be broadly classified into three categories: - Simple beam type (1 hinge, 1 roller) - Inverted L type (1 rigid, 2 hinges) - 2 rigid connection type (2 rigid, 2 hinges)

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■The shape of the material is a structure designed based on the Road Snow Prevention Manual published by the Hokuriku Construction Welfare Association (σck = 60N/㎟). ■We will select the type considering the amount of snow accumulation due to snow collapse. ■The structural form is a rigid 1-hinge 2 structure, taking into account economic efficiency.

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■This structure is the optimal construction method for terrain other than collapsed earth and overhanging slopes. ■The member shape is designed similarly to the rock shed in the design guidelines of the Hokuriku Regional Development Bureau (σck = 60N/㎟). ■The type selection will be based on the impact force of falling rocks. ■The structural form is a rigid one and two-hinge structure, considering economic efficiency.

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■The shape of the components is based on the standard design type from the Snow Prevention Manual for Roads published by the Hokuriku Construction Welfare Association (σck = 60N/㎟). ■Considering the design snow depth, road width, and construction limits, we select components that are suitable for all roads. ■The structural form is a three-hinged arch structure, designed with economic efficiency in mind.

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<Extremely excellent shock absorption performance> ■ The GeoLock Wall primarily uses soil and geosynthetics as its main materials. ■ Its unique flexible structure allows for efficient shock absorption, capable of handling large-scale shock energy. <Construction costs are 50-65% of conventional methods> ■ The main material is soil, and it can utilize locally generated soil and construction waste as materials. ■ It can be constructed using general earthworks, requiring no special techniques from skilled workers. ■ Compared to other methods, it is significantly more economical in terms of energy absorption levels. <Installable in various terrains and ground conditions> ■ Being a soil structure, it can be installed in various terrains, including sites with limited installation space, sites with vertical gradients, and valley terrains. ■ Since it does not transmit shock forces to the supporting ground, ground improvement treatments are usually unnecessary. <Environmentally friendly and landscape-coexisting> ■ By greening the wall surface with vegetation, it harmonizes with the surrounding landscape. <Easy maintenance after rockfall capture> ■ Even if damage occurs due to disasters, repairs can be made through partial component replacement.

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<Lineup> ■ Landslide debris protection fence "Slope Guard Fence Type LE" ■ Avalanche protection fence "Slope Guard Fence Type LS" ■ Rockfall protection fence "Slope Guard Fence Type LR" ■ Rockfall protection fence "SPARC Fence" ■ Avalanche prevention measure "SPARC Fence Type S" ■ Reinforcement work for existing rockfall protection measures "Reinforced Fence" ■ Reinforcement work for existing rockfall protection measures "Reinforced Fence Type L" ■ Pocket-type rockfall protection net "Slope Guard Net Type R" ■ Collapse snow protection net "Slope Guard Net Type S"

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■ It is possible to shorten the construction period by reducing the time for formwork installation. ■ It improves safety. ■ High quality can be ensured. ■ Products that consider the landscape can be manufactured.

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<Ensuring Safety and Planning> ■ The residual formwork method allows for construction in stages, eliminating enclosure and enabling quick evacuation actions in emergencies. ■ The residual formwork itself is self-supporting, making it possible to work safely underwater. ■ It is possible to ensure planning for offshore construction, which is easily affected by weather and sea conditions. <Economic Efficiency and Improved Workability> ■ The absence of enclosed spaces improves work efficiency, leading to a reduction in construction time. ■ The lightweight of the products allows for construction using small machinery. ■ In conventional methods, a minimum width of 1.0 m was often required for underwater working space, leading to designs based on stability calculations that exceeded this width. However, with the residual formwork method that does not require enclosed spaces, designs can be made according to stability calculations, reducing the amount of concrete needed. <Simplification of Material Procurement> ■ Due to staged construction, securing ready-mixed concrete is easy and workability is good, allowing for small-scale placements in fishing port construction. ■ Material delivery is limited to the staged construction, reducing yard area and simplifying yard planning.

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■Since you only need to drive the wedge part with a hammer, installation is very easy and quick. ■It uses a rubber material that is extremely resistant to weathering. ■There is almost no degradation of the rubber, allowing for long-term use of the joint material. ■Displacement due to differential settlement has been confirmed to withstand an average of 4-5 cm and a maximum of 7 cm for V-troughs, and an average of 4-5 cm and a maximum of 9.5 cm for PC flumes.

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■This product is a bottom drain pipe that adopts the TSKJ method. ■Compared to site-cast structures using fume pipes, it significantly shortens construction time and minimizes the duration of temporary drainage work and excavation. ■It can greatly reduce construction time compared to water-stopping walls built on-site. ■The joints between the bottom drain pipe and the water-stopping wall also use a complete water-stopping method, eliminating the risk of leakage. ■The product's weight is kept low by using a segmented design. ■High water-stopping performance water-expanding packing is used at the product joints. ■Adjustments can be made both vertically and horizontally according to the site (up to +500 to 1000mm for each product size).

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■ It is mainly used as the deck slab of steel minor girder bridges. ■ Generally, the deck slab span direction is a PC structure fixed by the pretension method. ■ In the direction perpendicular to the deck slab span (vehicle travel direction), it is an RC structure that integrates individual precast deck slabs with loop joint structures using cast-in-place concrete at the infill locations. ■ Compared to RC deck slabs, it allows for the reduction of minor girders due to longer deck spans and offers excellent durability. ■ It takes advantage of factory production features and can accommodate various site conditions. ■ There are numerous delivery records, including for highways and national roads.

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■ Since it uses a connection fitting method, on-site work such as formwork and concrete pouring is eliminated, allowing for a reduction in construction time of approximately 40% compared to on-site casting. ■ By providing shear keys at the joints, it prevents misalignment and steps between products. ■ Since the connecting steel and rebar do not protrude from the products, slide installation from above is also possible, making it suitable for construction in narrow spaces. ■ It is a simple task of just connecting bolts, so it does not require skilled workers. ■ It can accommodate arbitrary member thicknesses and angled shapes. ■ Being a precast product, it offers high strength and high quality, reducing long-term lifecycle costs.

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The joint between the concrete slab and the precast wall railing is designed with a loop-shaped rebar arrangement to consider height adjustment and rapid construction, making it compatible with slab replacement and new structures. This rebar arrangement achieves a continuous structure. The connection between precast wall railings employs a special joint structure where a PBL joint protruding from one side of the joint surface is inserted into the other wall railing, maintaining the continuity of the wall railings. This design enables rapid construction and minimizes the area for post-construction work.

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■ No changes to the indoor layout are necessary for external reinforcement. ■ It allows for low noise, low vibration, and dust-free construction, resulting in minimal environmental impact and enabling continued use of the building during the construction period. ■ The diagonal PC steel materials arranged within the structural frame are slender, with a maximum diameter of 40mm, while possessing high durability and excellent recovery characteristics, without obstructing natural light and ventilation even after reinforcement. ■ By allowing the diagonal PC steel materials to bear most of the reinforcement capacity, the cross-section of the PCa members remains slender. ■ The main components are precast elements (factory-produced), which reduces on-site work and shortens the construction period. ■ Cost reduction is achieved through the miniaturization of components.

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