Above ground extension

Jack Pile Technology
The Technology which extends an existing building upward from the rooftop while using the building

After reinforcing the foundation and other structures using Jack Pile without occupants’ leaving the building.
(New Excellent Technology certification No. 629 - Foundation Strengthening)

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Possible with Korea E&C
Reinforced the foundation of the existing building with 10 stories and extended vertically to building with 15 stories. (2010, Seoul)

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Vertical extension applying the current construction technology

The reinforcing technology of structure-foundation using equipment is difficult to work in the space which is close to columns or small space. Also, it need the long-term moving out of occupants because vibration, dust and noise occur during construction

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Vertical extension applying Jack Pile

The Jack Pile technology is the scientific technology of which the strata of reinforced pile end can be measured as a quantitative N value. It can reinforce the foundation by pilot bearing piles without vibration, noise and dusts as approaching close to a column or wall in a small space while a structure is being used. By settling columns outside of a building or reinforcing the minimum column in side of a building, it can extend building vertically while running a business, applying pillar/earthquake resistance reinforcement technology designated as ‘New Excellent Technology’.

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Underground extension

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Formation of a safely lifted structure with lower weight

When the building gets underground extension, a thin pile like micro pile often ends up being excavated unless it is reinforced by additional bracing process. However, Jack Pile can excavate underground 5m without reinforcing bracing and form a safely floating structure with smaller load.
(New Excellent Technology certification 629 - Foundation Reinforcement)

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With Korea E&C, it changes
1. excavated state under the B4 floor 2. steel-pile nail earth retaining wall
3. 160 tons pressurization pile is pressed 4. elevator pit underground extension

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Comparison the designs of underground extension (Parking-lot)

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Excavation for Floating-Structure Forming

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Comprehensive underground and ground extensions

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Simultaneously raising and expanding the underground parking lot

This method uses foundation reinforcement and other structural reinforcement to raise the height from the rooftop floor while the residents are living in the building (new construction technology no. 629 - foundation reinforcement)

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Make changes with Korea E&C
Expansion of the original basement-above ground 5 story building to 2 basement floors and 14 above ground floors

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Construction examples

    • Hyundai Department Store Trade Center
      2010~2011
    • Good Moonhwa Hospital
      2013. 05 ~ 2015. 06
    • Ulsan Hospital
      2014. 12 ~ 2015. 06

    • 2018.02