丸栄コンクリート工業 List of Products and Services

The "RPCA-AD Wall" is a precast rigid protective fence retaining wall that eliminates the need for dangerous tasks such as rebar assembly and formwork installation at heights, thereby improving safety on site. There are two types available: a 250mm thick type and a 300mm thick type that allows for the installation of sound barriers and other structures. Please feel free to contact us if you have any requests. 【Construction Procedure】 1. Delivery of the product 2. Installation of the product 3. Backfilling and paving *For more details, please download the PDF or feel free to contact us. # L-shaped retaining wall # Ramp # Rigid protective fence # Sound barrier # PCa # Precast

In this catalog, we introduce various products handled by our company. In 1925, Tanahashi Shoten was established in Hashima City, Gifu Prefecture, as a manufacturer and contractor of cement tiles. For nearly a century since our founding, we have been pioneering new fields, primarily focusing on "U-shaped prefabricated waterways" through the creation of various products. Without forgetting our origins, we will continue to take new strides toward the next stage. 【Contents (partial)】 ■ Box culverts / Large box culverts ■ Retaining walls ■ Storage ■ Waterways ■ Ditches *For more details, please refer to the PDF document or feel free to contact us.

This catalog provides a comprehensive introduction to the "retaining walls" handled by our company. In addition to residential land development, we offer a lineup that includes the "L-shaped retaining wall system A1," which can be used for factory development and ground development, as well as the "RPCA-Road Wall LR," which is used as a retaining wall for roadways. We also feature many other products, such as "stone-faced retaining walls" and "precast planting strips." Please use this for selecting products. We have also listed many products that conform to the certification standards of the Japan Precast Concrete Products Association. 【Featured Products (Partial)】 ■ L-shaped retaining wall system AI ■ High-Touch Wall ■ L-shaped retaining wall system N ■ RPCA-Road Wall LR ■ Multi-Corner Wall *For more details, please refer to the PDF materials or feel free to contact us. # L-shaped retaining wall # Road # Roadway # Sidewalk # Residential land # Land development law # Earthquake # Fence load # Guardrail installation # Rigid protective fence # Retaining wall # PCa # Precast

We would like to introduce our "L-shaped retaining wall system A1." It can be installed horizontally using dedicated lifting hardware. We offer a large earthquake-resistant type (D type) and a medium earthquake-resistant type. It has obtained certification under Article 14 of the Enforcement Order of the Land Development and Building Standards Act, and can be used not only for land development but also for factory construction and ground development. 【Features】 ■ Certified under Article 14 of the Enforcement Order of the Land Development and Building Standards Act ■ Available in large earthquake-resistant type (D type) and medium earthquake-resistant type ■ Can be installed horizontally using dedicated lifting hardware ■ Usable for land development as well as factory construction and ground development ■ Manufactured under consistent quality control by certified factories *For more details, please refer to the PDF materials or feel free to contact us. # L-shaped retaining wall # Land development # Retaining wall # PCa # Precast

We would like to introduce our retaining wall "High Touch Wall," which is certified under the Land Development Act. It has obtained certification under Article 14 of the Enforcement Order of the Land Development Act and is designed to consider fence loads (FP=1kN/m). It is manufactured under consistent quality control by certified factories. Please feel free to contact us when you need assistance. 【Features】 ■ Certified under Article 14 of the Enforcement Order of the Land Development Act ■ Manufactured under consistent quality control by certified factories ■ Designed to consider fence loads (FP=1kN/m) *For more details, please refer to the PDF materials or feel free to contact us. # L-shaped retaining wall # Land development # Retaining wall # PCa # Precast

We would like to introduce our "L-shaped Retaining Wall System N." It can be installed horizontally using dedicated lifting hardware. It is suitable for soil retention in pedestrian and roadway sections, as well as for general land development, with an economical cross-section. We also provide caps for drainage holes separately. Please specify whether you need a waterproof cap or a drainage cap. 【Features】 ■ Can be used for soil retention in pedestrian and roadway sections, as well as for general land development, with an economical cross-section ■ Can be installed horizontally using dedicated lifting hardware ■ Caps for drainage holes are provided separately *For more details, please refer to the PDF document or feel free to contact us.

The "Multi-Corner Wall" is a retaining wall that allows for free adjustment of the corner angle. It can accommodate angles from 90° to 180° and features a contoured shape that enables precise positioning during installation. It is compatible with the L-shaped retaining wall system N and the Road Wall LR. 【Features】 ■ The corner angle can be freely adjusted ■ Angle: Compatible with 90° to 180° ■ The base plate section is reinforced with rebar and cast on-site with concrete ■ Compatible with the L-shaped retaining wall system N and the Road Wall LR *For more details, please refer to the PDF document or feel free to contact us.

The "Roadwall LRT" is a large segmented retaining wall for roadways that exceeds a height of 5.0m. It consists of a main body and an extended base slab, which can be joined on-site. The joint section is integrated using sleeve joints and specialized grout material for mortar-filled joints. For more details, please refer to the related catalog. 【Features】 ■ Segmented large retaining wall exceeding a height of 5.0m ■ Composed of a main body and an extended base slab, joinable on-site ■ The joint section is integrated through mortar-filled joints *For more information, please refer to the PDF materials or feel free to contact us.

The "RPCA-Safety Wall LF II" is a retaining wall that can be installed with fences compatible with products that have top edge slopes, tailored to road gradients. It is possible to install pedestrian and bicycle protective fences (Type P). It has been certified as a compliant product by the Japan Precast Concrete Institute. For more details, please refer to the related catalog. 【Features】 ■ Compatible with pedestrian and bicycle protective fences (Type P) ■ Can accommodate top edge slope products tailored to road gradients ■ Certified as a compliant product by the Japan Precast Concrete Institute *For more information, please refer to the PDF materials or feel free to contact us.

The "Reverse Wall LG" is a reverse L-shaped retaining wall that can be used when there are land constraints behind the wall, preventing the use of a counterfort (base slab) at the back. It can be installed horizontally using a dedicated hanging fixture. The active earth pressure is considered at half during sliding analysis. For more details, please refer to the related catalog. 【Features】 ■ Suitable for situations where there are land constraints behind the retaining wall, preventing the use of a counterfort at the back ■ Can be installed horizontally using a dedicated hanging fixture ■ Active earth pressure is considered at half during sliding analysis *For more information, please refer to the PDF materials or feel free to contact us.

The "Protect Wall LP" is an L-shaped retaining wall that allows for the installation of guardrails on the top of the wall. It maximizes the road width. It can accommodate a top slope angle of 8.0% or less, as applied in the "Explanation and Application of Road Structure Regulations." For more details, please refer to the related catalog. 【Features】 ■ Guardrails (Type B, C) can be installed on the top of the retaining wall ■ Adopts a T-beam structure to achieve a safe and economical cross-section ■ Maximizes road width ■ Can accommodate heights from 1.0m to 4.5m ■ Standard products can accommodate curves due to base plate cutouts *For more details, please refer to the PDF materials or feel free to contact us.

The "Protect Base" is a guardrail continuous foundation with an L-shaped structure, allowing for standalone use as well as compatibility with various substructures. By connecting each block with loop reinforcement, integration is ensured. By making the connection part semi-precast with loop reinforcement and cast-in-place concrete, it can accommodate curves with standard products. 【Features】 ■ Integration is ensured by connecting each block with loop reinforcement. ■ The connection part is semi-precast with loop reinforcement and cast-in-place concrete, enabling curve accommodation with standard products. ■ Due to its L-shaped structure, it can be used alone or in conjunction with various substructures. *For more details, please refer to the PDF materials or feel free to contact us.

The "RPCA-AD Wall" is a precast rigid protective fence wall that integrates a concrete rigid protective fence and an L-shaped retaining wall, achieving a significant reduction in construction time. Since dangerous tasks such as rebar assembly and formwork installation at heights are no longer necessary, safety on site is improved. It is a product that meets the certification standards of the Japan Prestressed Concrete Institute. 【Features】 ■ Significant reduction in construction time achieved by integrating a concrete rigid protective fence and an L-shaped retaining wall ■ Improved safety on site as dangerous tasks such as rebar assembly and formwork installation at heights are no longer required ■ Available in two types: a 250mm top thickness type and a 300mm type that allows for the installation of sound barriers, etc. ■ Certified product by the Japan Prestressed Concrete Institute *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce the "Guardrail Foundation" that we handle. This product is an L-shaped wall combined guardrail foundation. By combining it with the Road Wall LR or LRT, we have achieved a safe and economical cross-section against collision loads. 【Features】 ■ By combining with the Road Wall LR or LRT, we have achieved a safe and economical cross-section against collision loads. ■ The type of retaining wall used changes depending on the type of protective fence. ■ The product length can accommodate L=4,000mm. *For more details, please refer to the PDF materials or feel free to contact us.

We would like to introduce the "Central Median Barrier Wall" that we handle. It is compatible with the trial wedge method for planting loads (1.0 kN/m²). The surface features a pattern that better matches the landscape. For more details, please refer to the related catalog. 【Features】 ■ A 2:1 slope type that is considerate of the eye and can be used for central medians and more ■ The surface has a pattern that better matches the landscape ■ Compatible with the trial wedge method for planting loads (1.0 kN/m²) *For more information, please refer to the PDF materials or feel free to contact us.

We would like to introduce our "Stone Wall Retaining System." This product is a natural stone retaining wall for landscaping. It allows for the selection of stone materials that match the surrounding landscape. There is no need for on-site stone masonry or stone laying work. For more details, please refer to the related catalog. 【Features】 ■ No need for on-site stone masonry or stone laying work ■ Allows for the selection of stone materials that match the surrounding landscape *For more information, please refer to the PDF document or feel free to contact us.

We would like to introduce our "Precast Planting Strip." This product is a planting unit that can be installed at the boundary between roads and sidewalks. The surface features a natural stone-like pattern, making it blend well with the landscape. It allows for the planting of shrubs and can be used in parks and other areas. For more details, please refer to the related catalog. 【Features】 ■ Planting unit that can be installed at the boundary between roads and sidewalks ■ Surface features a natural stone-like pattern, blending well with the landscape ■ Allows for the planting of shrubs and can be used in parks and other areas *For more information, please refer to the PDF materials or feel free to contact us.

The "RPCA-Protect Wall" is a large block retaining wall that allows for the construction of a sturdy retaining wall by pouring cast-in-place concrete inside the product, capable of accommodating heights of approximately 12 meters, following the structure of a cantilever retaining wall. Structural calculations based on various design guidelines enable economical cross-section determination. Since the product is self-supporting, it excels in safety and workability, leading to shortened construction periods. 【Features】 ■ Can be either integrated or segmented depending on design conditions ■ Self-supporting design enhances safety and workability, reducing construction time ■ No need for formwork installation or removal, leading to labor savings and cost reduction ■ Surface relief can be adapted in various ways, allowing for selection that suits the landscape ■ Economic cross-section determination is possible through structural calculations based on various design guidelines ■ Complies with product review standards set by the Japan Precast Concrete Products Technology Association *For more details, please refer to the PDF materials or feel free to contact us.

"Protech Wall II" is a large block that can be constructed using local excavated soil and reinforced concrete structures, allowing for greening. It can accommodate heights of approximately 10 meters. By combining G type and N type, it is possible to differentiate between planted and non-planted areas. It allows for the planting of shrubs and other vegetation, and its large size enhances workability and efficiency. 【Features】 ■ Capable of constructing large blocks that allow for greening ■ Can accommodate heights of approximately 10 meters ■ Allows for differentiation between planted and non-planted areas through the combination of G type and N type ■ Allows for the planting of shrubs and other vegetation ■ Large product enhances workability and improves efficiency *For more details, please refer to the PDF materials or feel free to contact us.

The "G Block" is a landscaping block for low shrubs that allows for labor-saving construction and a reduction in construction time due to its large size. It enables the securing of the necessary soil space for planting. It allows for the planting of low shrubs, providing a variety of landscapes depending on the types of trees used. For more details, please refer to the related catalog. 【Features】 ■ Secures the necessary soil space for planting ■ Allows for the planting of low shrubs, offering a diverse landscape depending on the types of trees ■ Due to its large size, it facilitates labor-saving construction and shortens construction time *For more information, please refer to the PDF document or feel free to contact us.

"Antler" is a self-supporting block that consists of large blocks, one per square meter, capable of reaching a height of approximately 5 meters. It can be used with the design methods according to the standards of conventional retaining wall blocks. The foundation part is precast, allowing for further labor savings and a reduction in construction time. For more details, please refer to the related catalog. 【Features】 ■ Large block, one per square meter, capable of a height of approximately 5 meters ■ Usable with design methods according to the standards of conventional retaining wall blocks ■ Self-supporting with a 5% slope, easily constructed with machinery ■ Labor-saving and expedited, reducing construction costs ■ Adopts a natural stone surface, considering harmony with the environment *For more information, please refer to the PDF materials or feel free to contact us.

The "Box-type Retaining Wall" is a cantilever block with a flexible structure that can prevent collapse by allowing the wall to move slightly in response to soil pressure during an earthquake. It has obtained the Construction Technology Certification (No. 0327) from the Public Interest Incorporated Foundation Civil Engineering Research Center. It can also consider ecosystem preservation through planting or natural greening using each small step. Please contact us regarding the applicable height. 【Features】 ■ Obtained Construction Technology Certification (No. 0327) from the Public Interest Incorporated Foundation Civil Engineering Research Center ■ Significant reduction in construction time ■ The product can be used in reverse, making curved construction easy ■ Ecosystem preservation can be considered through planting and natural greening using each small step ■ Maximum retaining wall height in construction achievements: 21m *For more details, please refer to the PDF materials or feel free to contact us.

The "T-Type Block T-Road" has obtained construction technology certification (No. 1222) from the Civil Engineering Research Center, and it is a large reverse T-shaped retaining wall that can be used for roads. Since it can be constructed from the inside, scaffolding is not required, eliminating the need for high-altitude work. The surface of the block utilizes the fractured surface of natural stone, allowing it to blend well with the surrounding environment. 【Features】 ■ Obtained construction technology certification (No. 1222) from the Civil Engineering Research Center ■ Large block size and machine construction enable shortened construction periods and labor savings ■ In the case of good quality ground, the T-Road for roads can be constructed vertically up to a height of 10m ■ Since it can be constructed from the inside, scaffolding is not required, eliminating the need for high-altitude work ■ The block surface uses the fractured surface of natural stone, matching the surrounding environment *For more details, please refer to the PDF materials or feel free to contact us.

The "T-Type Block W Type" is a certified product under the Land Development Act and can be used for land development. In addition to the M type, we offer B type, G type, and Ke type in our lineup. Vertical construction is possible up to a stacking height of 5 meters, allowing for effective use of land. 【Features】 ■ Certified product under the Land Development Act ■ Vertical construction possible up to a stacking height of 5 meters ■ Enables effective use of land *For more details, please refer to the PDF document or feel free to contact us.

"Panwall" is a construction method based on the theory of steep slope stability and ground reinforcement techniques. By using reverse construction to finish the structure from top to bottom, it protects obstacles and prevents loosening of the ground and collapse accidents during construction. Additionally, the precasting of surface works allows for improved quality, shortened construction periods, and labor savings. With high durability and maintenance-free features, it demonstrates superiority in long-term life cycle costs. [Features] ■ Enables effective land use at the top and bottom of slopes ■ Protects obstacles and prevents loosening of the ground and collapse accidents during construction ■ Allows for improved quality, shortened construction periods, and labor savings ■ Demonstrates superiority in long-term life cycle costs ■ Achieves excellent durability due to high strength *For more details, please refer to the PDF materials or feel free to contact us.

The "Tail Arm" method involves embedding steel materials called strips in layers within the soil and compacting them, creating a stable soil structure through friction with the soil. As it is a standardized prefabricated method, it does not require skilled workers or special techniques, allowing for a reduction in construction time. Due to its flexible structure, the load on the foundation ground is evenly distributed, making it applicable to a wider range of ground conditions. Additionally, color skins and design skins tailored to specific purposes, such as usage and environmental harmony, can also be produced. 【Features】 ■ Applicable to vertical embankments of up to approximately 15 meters ■ Efficient use of land with minimal land width required ■ No skilled workers or special techniques needed ■ Even distribution of load on the foundation ground due to flexible structure ■ Predominantly composed of standardized components, resulting in a quieter construction environment *For more details, please refer to the PDF materials or feel free to contact us.

The "Super Tail Arume" is a large-scale embankment reinforced soil wall construction method that reduces construction costs through the enlargement of panels, reduction of total strip length, and improvement of compaction frequency. By adopting large rectangular panels, various design panels and art reliefs can be selected. Additionally, by using precast components with irregular top panels and caps, on-site adjustment work can be reduced. 【Features】 ■ Possible reduction in construction costs ■ 30% reduction in panel installation time ■ 25% reduction in total strip length ■ 20% reduction in compaction frequency ■ Improved safety *For more details, please refer to the PDF materials or feel free to contact us.

The "Terra Trail EG6" is a greenable embankment construction method with a flexible structure that follows the compaction of the embankment. The wall material uses mesh panels, achieving both greening and lightweight materials. By adopting a uniquely developed U-shaped anchor, the workability and cost-effectiveness have significantly improved. Additionally, the front slope can be adjusted up to 1:0.3, making it adaptable even in cases with land restrictions. 【Features】 ■ The wall material uses mesh panels, achieving both greening and lightweight materials ■ The front slope can be adjusted up to 1:0.3 ■ Adaptable even in cases with land restrictions ■ Construction costs are reduced by 30% compared to other methods ■ Flexible structure that follows the compaction of the embankment *For more details, please refer to the PDF materials or feel free to contact us.

The "HP retaining wall" is a structure that combines H-shaped steel and concrete panels. It minimizes the excavation space at the back, allowing for construction in narrow areas. It can be used in locations where products with supports like L-shaped retaining walls cannot be used (due to interference from buried pipes or underground structures). 【Features】 - No footing required - A structure that combines H-shaped steel and concrete panels - Suitable for construction in narrow spaces - Can be used in locations where products with supports like L-shaped retaining walls cannot be used *For more details, please refer to the PDF materials or feel free to contact us.

The "SP Wall" is a hybrid structure retaining wall method that combines steel pipe piles and concrete panels. It minimizes the excavation space behind the wall and is effective in sites where products with footings, such as L-shaped retaining walls, cannot be used due to limited space. 【Product Specifications】 ■ S ・L2000×B560×H750→700kg ・L2000×B560×H1000→930kg ■ M ・L2000×B660×H750→740kg ・L2000×B660×H1000→990kg ■ L ・L2000×B800×H750→920kg ・L2000×B800×H1000→1,230kg ■ LL ・L2000×B900×H750→990kg ・L2000×B900×H1000→1,320kg *For more details, please download the materials or contact our company.