Top Company introduction Business introduction Achievements / case studies Employment information Contact Us Business introduction top DO-Jet method Vertical jet method Jet mall construction method Our business Business introduction Ultra-high pressure jet application technology N.JET Engineering is a company that has applied ultra-high pressure jet technology to research ground improvement and cutting / removing underground obstacles, and has constructed numerous propulsion / shielding construction sites through the development of related equipment. .. Even now, we are continuing research and development to solve various technical issues related to underground construction, aiming for further evolution. DO-Jet method Ultra-high pressure jet is injected from the excavator used for propulsion / shielding work to cut underground obstacles (steel, etc.) and improve protection of important structures (cement type). Vertical jet method The casing penetrates into the ground from the ground, and an ultra-high pressure jet is injected from the casing to cut the steel material that becomes an underground obstacle. Jet mall construction method Crush rocks and boulders by injecting an ultra-high pressure jet from the excavator used for propulsion and shield construction. Ultra-high pressure jet application technology Only one technology Our technology is to apply the ultra-high pressure jet technology that injects at a maximum of 245MPa to underground construction, and to solve the problems of propulsion and shielding construction by controlling the injection nozzle such as underground obstacle cutting, boulder crushing, ground improvement, and forward exploration. It is unique. In particular, the DO-Jet method, which can cut and dig underground obstacles such as H-shaped steel and steel sheet piles without using the ground, was difficult with the conventional propulsion method and shield method, but in urban areas. It is attracting attention as a one-and-only construction method that can be constructed according to the pipeline design without being affected by the presence of obstacles. About patented technology 1996年から地下工事に超高圧ジェットを応用してきたN.JETエンジニアリングは、数々の基礎実験や試験工事を積み重ね、多様な地盤条件で最適な地下工事を可能にするノウハウを蓄積しています。そこで得た貴重な知見の多くは特許技術として申請・認可済となっています。 開発者の声 245MPaという圧力は1cm四方に2500kgの力をかけることに相当します。それに関連する装置類は極めて精密であり、シビアな設計やメンテナンスが必要です。また、どのような地盤でどのような地中障害物があるのかを正確に探査し、どういう材料を配合して超高圧噴射するかといったノウハウは、一朝一夕で得られるものではありません。今後は工期のさらなる短縮や施工費の縮減を目指していきます。 トップ 会社紹介 社長メッセージ 会社概要 拠点一覧・アクセス 事業紹介 DO-Jet工法 バーチカルジェット工法 ジェットモール工法 実績・事例紹介 採用情報 業務紹介 社員紹介一覧 教育研修制度 募集要項一覧 エントリー お問い合わせ お知らせ プライバシーポリシー Copyright © 2015 N.JET engineering All Rights Reserved.