TN-X Method

The TN-X method uses a hydraulic expansion/contraction drilling head to form expanded foot protections of up to 2,400 millimeters at the tips of steel pipe piles. TN-X is a steel pipe pile method for high bearing capacity. The TN-X method was certified by the Minister of Land, Infrastructure, Transport and Tourism in 2005. TN-X is used for large distribution warehouses, government buildings, hospitals, airport facilities, and other important building structures that require high pile strength.

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NS ECO-PILE Method

NS ECO-PILE method is a foundation pile method in which rotational press-fitting is used for a steel pipe pile which has a steel plate (blade) that is processed into a spiral shape welded to the tip of the pile. Large-diameter piles are rotationally press-fitted via steel pipes using full rotation pile drivers, while medium- and small-diameter piles are driven by a self-propelled small pile driving machine. Similar to wood screws, the piles are penetrated into the soil via the propulsion of the tip blade.

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Tenocolumn Method

Tenocolumn method is a deep-mixing processing method formed by stirring and mixing solidifying material liquid with the existing soil while injecting cement-based solidifying material (solidifying material liquid) made into a slurry at the in-situ position. This method is flexible and has a wide range of uses, including foundations for building structures, soil retaining, prevention of uneven settlement, and measures against liquefaction and arc sliding.

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ATTcolumn Method

The ATTcolumn Method is a synthetic steel pipe pile method with large frictional force and high toughness in which a steel pipe pile with blades is embedded in a columnar improvement. In the construction field, the ATTcolumn has received Ministerial certification (indentation bearing capacity) and has been rated by the Center for Better Living (withdrawal bearing capacity). In the civil engineering field, the ATTcolumn has undergone technical evaluation by the Japan Society of Civil Engineers, and can be applied to architecture and civil engineering structures.

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NS ECO-PILE Method

NS ECO-PILE method is a foundation pile method in which rotational press-fitting is used for a steel pipe pile which has a steel plate (blade) that is processed into a spiral shape welded to the tip of the pile. Large-diameter piles are rotationally press-fitted via steel pipes using full rotation pile drivers, while medium- and small-diameter piles are driven by a self-propelled small pile driving machine. Similar to wood screws, the piles are penetrated into the soil via the propulsion of the tip blade.

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TN Method

In the TN method, drilling is performed while removing soil from inside the pipe via an auger screw inserted inside of the steel pipe pile. After reaching the specified support layer, cement milk is filled via high-pressure injection and the foot protection is hardened. These foundation pile methods support structures through the formed expanded foot protections for the tips. The methods are widely used in the civil engineering and construction fields, and they can also be applied to steel pipe sheet pile foundations.

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EAZET Method

HiFB Method

RODEX Method