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  6. Extending the Lifespan of Drainage Ditches Using the Neplus Method for the Construction Industry

Extending the Lifespan of Drainage Ditches Using the Neplus Method for the Construction Industry

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last updated:Mar 04, 2026

ネプラス工法全国会 本部
ネプラス工法全国会 本部
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Immediate traffic opening! The Neplus method realizes the renovation and longevity of drainage ditches.

In the construction industry, the aging of drainage ditches poses challenges that not only compromise road safety and aesthetics but also lead to traffic restrictions and increased costs due to repair work. Especially in modern times, where the longevity of infrastructure is required, proper maintenance and management of drainage ditches is a critical issue. The Neplus method allows for the renovation of only the upper part of damaged drainage ditches, eliminating the need for excavation and enabling construction while avoiding structures and underground installations. This minimizes the impact on traffic while achieving the longevity of drainage ditches. 【Application Scenarios】 - Renovation of drainage ditches in various locations such as roads, highways, airport and port facilities, railway facilities, factories, and stores - Renovation of drainage ditches in areas where traffic regulation is difficult - Construction in locations close to underground installations or structures - Addressing the need for height adjustments of drainage ditches due to road improvements - Resolving construction difficulties caused by the depth of free-slope drainage ditches 【Benefits of Implementation】 - Shortened construction period due to immediate traffic reopening - Cost reduction due to no excavation required - Effective use of resources through the reuse of existing covers - Improved durability with steel frames - Ability to meet a wide range of needs with diverse product variations

    Renovation and repair methods
1201_neprs_560_560_1397626.png

Extending the Lifespan of Drainage Ditches Using the Neplus Method for the Construction Industry

1201_neprs_560_560_1397626.png
1201_neprs_560_560_1397626.png s1.png s2.png 【施工事例】ネプラス工法/除雪対策品/20251218.png s3.png
  • For details on the side ditch repair method "Neplus Method," click here.
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【Features】 - A trench repair method that allows for immediate traffic reopening - Reuse of existing covers is possible (depending on conditions) - Upgradeable to a structure that is less prone to damage on the top of the trench - A wide variety of products, including bolt-fixed types and anti-slip patterns - Proven track record in roads, highways, airport and port facilities, railway facilities, factories, stores, etc. 【Our Strengths】 The Neplus Method National Association promotes the expansion of the Neplus Method, provides technical support, manufactures and supplies products, and offers technical assistance to construction partners. With abundant experience and technical expertise, we support our customers' trench repair projects.

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What is the Neplus method?

What is the Neplus method?

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Drainage Ditch Upper Renovation System "Neplus Method"

Drainage Ditch Upper Renovation System "Neplus Method"

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ネプラス工法全国会

ネプラス工法全国会 本部

General contractors and subcontractors

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The Neplus Method National Association is an organization that promotes the expansion of the "Neplus Method" for the repair of the upper part of drainage ditches, provides technical support, manufactures and supplies products, and offers technical assistance to construction partners. The Neplus Method involves removing only the damaged upper part of the drainage ditch with a specialized cutting machine and installing new repair products to renew the ditch. The construction period is quick, allowing for immediate traffic reopening if about 10 meters are completed in a day. Additionally, it can be easily implemented even in ditches close to structures or underground installations without the need for excavation. We have handled numerous drainage repair projects to date. If you have any issues with drainage work, please feel free to contact us.

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