Leakage and sedimentation countermeasures - Water guide pipe "Miedoren" <NEXCO standard compliant>
Miedoren EF G MJ Series
Contributing to the longevity of aging tunnels and culverts. Numerous achievements in leak prevention and spalling prevention! Cold-resistant types are also available, achieving measures against icicles.
The "Mie Drain Series" water diversion pipes from Sanju Heavy Industries are products used for preventing water leakage and spalling from joints and cracks in tunnels and culverts, as well as for icicle prevention. They have a wealth of adoption records in repair work for aging tunnels and culverts, primarily in public works. 【Main Lineup】 <EF Series> Main type adaptable for both linear and surface water diversion - Highly robust, serving as both "water leakage prevention work" and "spalling prevention work" (compliant with NEXCO's small piece spalling prevention test standards) - Allows for confirmation of the installation surface condition after installation (transparent type) - Can guide water to the flow end without freezing the leakage (cold-resistant type) <G Series> Integrated structure type specialized for linear water diversion - Offers a certain degree of flexibility while serving as both "water leakage prevention work" and "spalling prevention work" (compliant with NEXCO's small piece spalling prevention test standards) - Can be installed in narrow arch areas of tunnels and single-track tunnels <MJ Series> Adaptable for both linear and surface water diversion, featuring a non-combustible aluminum composite panel type with a non-combustible certification number - In addition to being non-combustible, it possesses excellent weather resistance, corrosion resistance, and pollution resistance *For more details, please download the PDF or feel free to contact us.
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basic information
"Why is a 'water conduit' necessary?" The physical lifespan of infrastructure such as bridges, roads, tunnels, water supply and sewage systems, and public facilities is generally said to be around 50 years. During the period of rapid economic growth from the 1960s to the 1970s, public investment advanced, and about half of the current public facilities were built during this time. In other words, there are many infrastructures that have exceeded their 50-year lifespan, and by 2026, the number of aging tunnels will account for 44% of approximately 10,000 in total, worsening the situation. To address these issues, tunnel maintenance projects aimed at countermeasures for the aging of existing tunnels and safety measures for road traffic are being emphasized, and as these projects increase, the need for water conduits arises. *NETIS registration achievements available (up to R3.10)*
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For more details, please refer to the materials. Feel free to contact us as well.
catalog（4）
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CAD data（2）
| Model number | overview | File |
|---|---|---|
| EF Series Standard Use | In addition to leak prevention measures, a water guide gutter that also complies with anti-falling measures (NEXCO standards). It is the most widely adopted product and a standard product that accommodates various sites. |
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| EF Series Cold Resistant | In addition to leak prevention measures, a water guide trough that also complies with the NEXCO standards for debris removal. It directs water to the outlet without freezing leaks even in cold regions. |
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Company information
Since our establishment in 1972, we have grown alongside the development of the Japanese economy. We began producing grating as our main product and have contributed to society as a leading company in the industry to this day. During this time, we have also developed new products related to construction and civil engineering beyond grating, including the sluice gate plant business, hot-dip galvanized coating business, shock protector business, bridge steel structure business, water conduit and drainage pipe business, metal processing business related to construction, and exhibition case business for museums and galleries, among others, building a solid foundation and achievements across various industries. Currently, through the deployment of five factories and twelve branches and sales offices across the country, we are involved in a wide range of public works as well as general private sector construction projects. We will continue to accumulate and refine these technologies to meet our customers' needs.