Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
46～60 item / All 92 items
Concrete pipe, heavy pressure pipe
Using special water-stopping materials, a reliable and smooth joint can be achieved. 【Features】 ○ There is no need for reinforced concrete. ○ A reliable and smooth joint can be achieved. ● For other functions and details, please download the catalog.
Box culvert super joint box culvert
The SJ-BOX is a box culvert designed to improve seismic resistance by allowing the joint section to be flexible and extending the insertion mouth. 【Features】 ○ The joint section is flexible and the insertion mouth is extended. ○ Even if it starts to pull apart after joining, the compression rate of the rubber ring does not change. ● For other functions and details, please download the catalog.
RPCA box culvert
Our box culverts are widely used in public works such as urban drainage systems, agricultural drainage ditches, underground pedestrian passages, and road crossing culverts, as well as in large-scale residential developments and factory site construction. 【Features】 ○ The box culverts include Type III, national box culvert association standard types (RC, PC), DCJ box culverts, two-part types, long-span culverts, and free-angle types. ● For other functions and details, please contact us.
Seismic resistance and water-tightness superior rubber ring joint method.
The DCJ box culvert can achieve high seismic and water-tight performance simply by inserting the "inlet" equipped with a two-layer structure special rubber ring into the "outlet." Additionally, it excels in workability as the internal joint work can be omitted. The special rubber ring features a two-layer structure, with a soft rubber base covered by hard rubber on the outside, which provides excellent followability, compression recovery, and abrasion resistance, maintaining high water-tight performance (0.06MPa) even during extraction due to seismic motion or after bending. For more details, please contact us or refer to the catalog.
We are widely utilized for public works, large-scale land development, and industrial land development.
There are III type, national box culvert association standard type (RC, PC), DCJ box culverts, two-part type, long-span culverts, and free-angle type box culverts.
A wide lineup of products! Featuring a rich selection of arch culverts and high-touch walls.
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.
Ensures high water resistance! Even against slight uneven settlement of the ground, flexibility is demonstrated, eliminating concerns about leakage!
Our company handles the "Arch Culvert" for high embankments. By using rubber rings at the joints, high water-tightness can be ensured. It also demonstrates flexibility against slight uneven settlement of the ground, eliminating concerns about leakage. Additionally, since the upper part has an arch shape and the lower part has a box shape, the load on the upper part is transmitted as axial compressive force, reducing the bending moments that occur in the upper part and side walls of the members, resulting in high strength. 【Types by Shape】 ■ A Standard: Standard Arch Culvert ■ P Standard: Longitudinally Connected Arch Culvert ■ S Standard: Two-Part Arch Culvert *For more details, please refer to the PDF document or feel free to contact us.
The connection structure is a mortar-filled joint connection! Introducing the two-part box culvert!
We handle "two-part box culverts." The standard internal width is approximately 3.5 to 8.0 meters, and considering transportability and constructability, it is designed in a two-part shape, assembled using mortar-filled joints. Please feel free to contact us when you need assistance. 【Features】 ■ Two-part shape considering transportability and constructability ■ Assembled using mortar-filled joints ■ Standard internal width of approximately 3.5 to 8.0 meters *For more details, please refer to the PDF document or feel free to contact us.
Connect divided components using mortar-filled joints! Full precast segmented box culvert.
We handle "4-part large box culverts." The components are connected using mortar-filled joints and are divided into four parts for transportability and constructability, making it a fully precast box culvert. Please feel free to contact us when you need assistance. 【Features】 ■ Fully precast and segmented ■ Four-part shape considered for transportability and constructability ■ Components connected using mortar-filled joints *For more details, please refer to the PDF materials or feel free to contact us.
It is possible to eliminate the concrete exposure! Introducing the sloped box culvert.
Our company handles "Free Angle Box Culverts." These are sloped box culverts that can be constructed to accommodate roads and waterways intersecting at various angles, allowing for shortened construction periods and improved cost-effectiveness. Compared to conventional methods, the product has no protrusions, resulting in a neat shape. Additionally, the waterway width can be manufactured from 4.0 to 8.0 meters. 【Features】 ■ Can be constructed to accommodate roads and waterways intersecting at various angles ■ Allows for shortened construction periods and improved cost-effectiveness ■ Can be manufactured at various angles to suit each construction site ■ Designed to eliminate exposed concrete sections at the site ■ Waterway width can be manufactured from 4.0 to 8.0 meters *For more details, please refer to the PDF document or feel free to contact us.
Improved workability with softer mortar than usual! Small diameter box culvert.
The "OK-style box culvert" is a small-diameter box culvert manufactured and developed by Oike Co., Ltd., which specializes in concrete secondary products. It is designed to be easy to work with using a slightly softer mortar than usual. 【Features】 ■ Comes with connection bolts and connection plates ■ Available in various dimensions *For more details, please refer to the PDF document or feel free to contact us.
Just cover it with cast-in-place foundation concrete! A portal culvert that accommodates various sizes.
The "Gate-shaped Culvert" is a product that allows for the conversion to a buried channel while maintaining existing open waterways, by overlaying it on the existing waterway. Since it can simply be placed over the cast-in-place concrete foundation, it offers good workability. There is little need for water replacement or temporary construction, as it does not require the removal of existing waterways. 【Features】 ■ Compatible with vehicle loads T-25 ■ Available in various sizes to match the local conditions and design requirements *For more details, please refer to the external link page or feel free to contact us.
This is a bench that contains a portable "kamado" that can be used for cooking during disasters.
Our "Kamado Bench" is a highly convenient bench that allows you to "choose your fuel" and "move the stove." Normally, it functions as a regular bench, but in times of disaster, it can be used for cooking with the "stove" stored inside. It can accommodate not only "firewood" as fuel but also "charcoal" and "solid fuel," featuring a portable "stainless steel stove" that enhances convenience compared to typical kamado benches, making it a disaster prevention product. 【Features】 ■ The "stainless steel stove" can be freely moved after being taken out from the bench. ■ The height of the firebed can be adjusted, allowing the use of "firewood," "charcoal," and "solid fuel." ■ S Wood Up (heat-resistant + heat-reducing compatible product) is used for the seat board. *For more details, please refer to the PDF materials or feel free to contact us. ★ If you would like to receive a comprehensive catalog by mail, please contact us below and clearly state "Request for Comprehensive Catalog."
"Large box culverts" that can be assembled on-site with upper and lower pieces, capable of forming cross-sections of 3 meters or more!
○ This is a large box culvert that is manufactured and transported in split upper and lower pieces, which are then assembled on-site. ○ Compared to conventional on-site construction methods, there is less high-altitude work on scaffolding, allowing for safer and more secure construction. ○ The split-type "large box culvert" is a low-carbon concrete product made using blast furnace slag fine powder.
"Arch culvert" published in the Road Geotechnical Culvert Construction Guidelines.
○ It is an arch culvert with a very rational shape as a structure. ○ It can be used in various applications such as for sewers, drainage channels, underground rivers, underpasses, and utility tunnels. ○ It is a culvert that demonstrates advantages when the soil cover exceeds 3 meters. ○ Depending on the design conditions, it can also accommodate soil covers exceeding 10 meters. ○ It is a low-carbon concrete product made using fine blast furnace slag.
