General contractors and subcontractors

N.JETエンジニアリング 東京本社

addressTokyo/Chuo-ku/3-2-7 Nihonbashi Honmachi, Tokiwa Building 5F
phone03-3517-5668
last updated：
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N.JETエンジニアリング List of Products and Services

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Introduction to the DO-Jet Method

Solving underground obstacle issues in shield and propulsion methods with ultra-high-pressure jet application technology!

Our company employs the 'DO-Jet method,' which allows all operations to be conducted from the tunneling machine without using the surface at all. By injecting ultra-high-pressure jets from the tunneling machine, we perform cement-based ground improvement and cut and remove underground obstacles that have been left in the ground. 【Features】 ■ Since ground improvement is carried out from the tunneling machine without using the surface, it does not impact the surrounding environment. ■ Cutting underground obstacles from the tunneling machine enables safe and highly efficient construction. ■ Received the Excellence Award at the 14th (2012) National Land Technology Development Award. *For more details, please download the PDF or contact us.

  • Ground foundation construction method

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