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Soil retention material pull-out simultaneous filling GEOTETS method

Soil retention material pull-out simultaneous filling GEOTETS method

Leave no gaps, allow no subsidence.

This is a method of filling a dedicated permanent grout material into the voids created underground "simultaneously with the extraction" of soil retention materials such as steel sheet piles and H-beams. By securely filling the voids, it highly suppresses subsidence and cracking of the surrounding ground. It is optimal under conditions where ground displacement is not permitted, such as near soft ground, important structures, river embankments, and soil contamination countermeasures. ◆ 20-50% cost reduction compared to leaving materials in place By reusing steel materials, there is no need for purchase, leading to significant cost savings. In disaster recovery work, the repurposing of steel allows for continuous construction, contributing to early recovery. ◆ Elimination of underground obstacles By safely removing soil retention materials that were previously left in place, future underground obstacles are eliminated. ◆ No impact on surrounding ground To immediately fill the voids and looseness of the ground during material extraction, it suppresses subsidence of the surrounding ground.

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  • Ground foundation construction method
  • Simultaneous filling method

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Soil retaining member pull-out simultaneous filling method

Soil retaining member pull-out simultaneous filling method

A unique method for safely retrieving steel sheet piles and similar materials in proximity construction and levee work.

When performing temporary earth retention in soft ground, the extraction of steel sheet piles can significantly impact nearby houses and buried utilities, leading to many cases where they are left in place. Additionally, in the construction of reservoirs and river embankments, the risk of embankment failure during floods caused by water channels created during extraction is a concern. This method has accumulated approximately 200 successful cases as a solution to these issues. A new technology has been patented and registered with NETIS, which involves filling the voids created during extraction with a special filling material simultaneously as the steel sheet piles are pulled out. This helps prevent business losses and reduces costs.

  • Civil Engineering Method
  • Simultaneous filling method

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Soil retaining member pull-out simultaneous filling method

Soil retaining member pull-out simultaneous filling method

- Proximity construction - reliable settlement control - Soil contamination measures - water barrier even after extraction - Embankment construction - no creation of waterways

When performing earth retention using temporary materials in areas close to important structures such as residential buildings and underground installations, significant impacts on the surrounding ground can occur during the extraction of earth retention piles (such as steel sheet piles or H-piles), often leading to business losses such as building compensation. Without an effective solution, there was no choice but to leave the earth retention piles in place, causing difficulties for many stakeholders. This method simultaneously fills the void created during extraction by pulling from pre-installed filling pipes. Under conditions with a variety of ground conditions and differences in extraction machinery, it highly suppresses ground displacement after extraction, allowing for the safe retrieval of earth retention materials. In recent years, due to frequent major disasters caused by heavy rainfall, this method has seen an increase in usage as a unique solution for earth retention work on river and pond embankments that does not create water channels. It contributes to cost reduction in proximity construction, prevention of business losses, and reduction of environmental impact through the reuse of steel sheet piles. This method can also be applied underwater. *For more details, please download the catalog PDF or feel free to contact us.*

  • Ground foundation construction method
  • Special Construction Method
  • Civil Engineering Method
  • Simultaneous filling method

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Since adjacent construction is possible, it prevents business losses: "Simultaneous Filling Method for Retaining Material Pullout."

Since adjacent construction is possible, it prevents business losses: "Simultaneous Filling Method for Retaining Material Pullout."

No underground obstacles will be left behind due to abandonment (entombment)! The 'GEOTETS method' is effective in such areas.

■Close Proximity Construction [Preventing Business Loss] In areas close to important structures such as residential houses, there seems to be a lot of residual soil retaining materials. This method allows for simultaneous filling while pulling out the material through pre-installed filling pipes, addressing the voids created by the extraction. It highly suppresses ground displacement, enabling safe extraction of the soil retaining materials. ■Reservoirs and River Embankments [No Water Path Creation] In recent years, due to frequent major disasters caused by heavy rain, there has been an increase in the use of construction methods that do not create water paths in soil retaining works for river and reservoir embankments. This method can also be applied underwater. ■Soil Contamination Countermeasures [Waterproof Wall Even After Soil Retaining Material Removal] In soil contamination countermeasure works, groundwater monitoring is required for two years after the completion of the project. Therefore, it is not possible to pull out the soil retaining materials. By adopting this method, which has the function of a waterproof wall, it is possible to remove the soil retaining materials early and reduce costs. ■Pile Extraction [High-Speed Simultaneous Filling to Suppress Settlement] Initially, filling was done at a rate of 20 to 30 liters per minute. Now, it has advanced to allow for high-speed simultaneous filling of up to 140 liters in large volumes. This development achievement has made it possible to use this method for extracting large cross-section existing piles as well.

  • Ground foundation construction method
  • Civil Engineering Method
  • Earth retaining wall/foundation reinforcement
  • Simultaneous filling method

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