Ground reinforcement construction [Certified method] ETP method
Steel pipe piles with advanced wings, Ministry of Land, Infrastructure, Transport and Tourism Minister Certification
The ETP method is a type of rotary penetration steel pipe pile with a tip wing, which is driven into the ground by rotating a steel pipe that has a triangular excavation auxiliary blade with a circular enlarged base welded to its tip.
basic information
The pile diameters range from φ89.1 to φ609.6 in 16 sizes. The wing diameters have numerous specifications set for each pile diameter to accommodate various design conditions. 590N grade steel pipes (SEAH590, HU590) are available for use. Construction without soil displacement eliminates the need for soil disposal costs. By using compact and powerful construction machinery, low noise and low vibration construction is possible, achieving construction that takes the surrounding environment into consideration.
Price range
Delivery Time
Model number/Brand name
ETP (Earth Tender Pile) method
Applications/Examples of results
Applicable types of ground End ground of foundation piles: Sandy ground (including gravelly ground) and clayey ground Surrounding ground of foundation piles: Sandy ground and clayey ground Maximum construction depth End ground: Sandy ground (including gravelly ground) The smaller value between 130 times the outer diameter of the steel pipe or 63.60m End ground: Clayey ground If the outer diameter of the steel pipe is up to 457.2mm, the smaller value between 130 times the outer diameter of the steel pipe or 59.43m; if the outer diameter of the steel pipe is 508.0mm or more, it is 57.0m Applicable building scale Buildings with a total floor area of 500,000m2 or less
