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.
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basic information
【System Configuration】 ■ Forward Exploration System ■ Ultra-High Pressure Ground Improvement System ■ Cutting and Removal System *For more details, please download the PDF or contact us.
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Applications/Examples of results
【Usage Examples】 ■ Cutting and removal of underground obstacles ■ Crushing of boulders and coarse stones ■ Reaching and joining existing structures ■ Underground joining to existing pipes and tunneling machines ■ Protection of nearby structures ■ Ground improvement for bit replacement of tunneling machines, etc. ■ Strengthening ground reaction in sharp curve sections ■ Prevention of mud loss in anhydrous ground layers *For more details, please download the PDF or contact us.
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Company information
In our company, in order to address challenges such as obstacles left behind and the protection of important structures in shield construction and thrust construction, we have focused on the potential of ultra-high-pressure water jet technology and have developed techniques such as the "DO-Jet method," "Jet Mall method," and "Vertical Jet method." Without being satisfied with the existing technologies we have developed so far, we will continue to refine our technology daily to respond to requests for technical support and new needs, always aiming for the evolution of our technology.
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