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Water Jet (WJ) Method - Narrow Space Chipping Method

Water Jet (WJ) Method - Narrow Space Chipping Method

For work in narrow areas! The water jet allows for vibration-free construction!

The "Water Jet Narrow Area Chipping Method" is a chipping technique that allows for the removal of weak parts of concrete in narrow areas without damaging the sound parts (remaining parts) or reinforcing bars. The water jet enables vibration-free construction. This helps prevent the induction of cracks in the remaining structure, thereby reducing the risk of re-deterioration after repairs. 【Features】 ■ Gentle on the structure ■ Not affected by weather ■ Vibration-free construction possible ■ Uniform finish ■ High construction effectiveness *For more details, please refer to the PDF document or feel free to contact us.

  • Other construction services
  • Re-construction method

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Narrow and low-head pre-made pile excavation method "SPACE 21 Method"

Narrow and low-head pre-made pile excavation method "SPACE 21 Method"

Over 530 achievements nationwide: Simplifying temporary facilities with a leaderless ultra-compact design. Reducing construction costs in narrow low spaces through self-propelled movement and short-length splicing piles.

This is a hydraulic full-rotation prefabricated pile excavation method developed for efficient construction of prefabricated piles (steel pipe piles and concrete piles) under harsh conditions such as low spaces and narrow sites. The dedicated machine directly grips the pile body and performs rotary insertion, while low-pressure cement milk is ejected to ensure the construction of a solid foundation bulb. ■ Space-saving: Weighing 5.1 tons or more, the compact machine with a maximum size of 2.8×2.2×2.0m can be easily transported to the excavation bottom. ■ Cost reduction: Eliminates the need for a leader, improving head loss and simplifying temporary facilities such as piers. ■ Improved construction efficiency: Self-propelled movement by the traction unit speeds up pile-to-pile movement in narrow sites. ■ Wide adaptability: Compatible with various diameters of steel pipe and PHC piles, capable of standard installation lengths of up to 50m. ■ Proven track record: Holds extensive construction data with 535 sites nationwide and a total construction length of 259,142m. *For more details, please download the PDF or feel free to contact us.

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  • Ground foundation construction method
  • Re-construction method

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