[EAZET] The ideal steel screw herical pile installing system in Japan

EAZET

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HOME > Pile Specification

Pile Specification

EAZET pile is consisted of a steel shaft part and a pile spiral tip part. Pile spiral tip part is a tapered steel plate (helix) welded to the pile shaft. The helix has diameter that is from tow to three times of pile shaft. It has the function of enlarging the bearing capacity of the EAZET pile and enabling the pile installation process without exhausting wastage and soil.

Environmentally Friendly

Pile shaft diameter Dp(mm) Pile spiral tip diameter Dw(mm) Thickness of the pile shaft t(mm) Steel clasification Steel pile classification
STK400 STK490
Thickness ts(mm)
114.3 250 16 (SS400) 4.5 6.0 _
300 16 (SS400)
139.8 300 16 (SS400) 6.6 6.6
350 19 (SS400)
165.2 350 16 (SS400) 7.1 7.1
450 22 (SM490A)
190.7 400 19 (SS400) 7.0 7.0
500 22 (SM490A)
216.3 470 22 (SS400) 8.2 12.7 8.2 12.7
550 28 (SM490A)
600 28 (SM490A)
267.4 500 19 (SM490A) 8.0 9.3 12.7 8.0 12.7
580 28 (SS400)
650 28 (SM490A)
800 36 (SM490A)
318.5 600 22 (SM490A) 10.3 6.9 12.7
750 32 (SM490A)
355.6 700 28 (SM490A) 9.5 9.5
800 32 (SM490A)

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Steel specification

Part Material
Pile shaft JIS G 3444
Carbon steel pile for ordinal structural use STK400, STK490
Pile spiral tip JIS3101
Carbon steel plate for ordinal structural use SS400, SS490

Allowable stress intensity of the EAZET pile

N/mm²
Steel pile
classification
Allowable tension
stress
σca
Allowable tensile
stress
σca
Allowable bending
stress
τa
STK400 140 140 80
STK490 185 185 105

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EAZET pile Connection

Pile connection can be done by specially developed pile connection system "CCJ" or ordinal welding method.
CCJ is the system that can connect steel pile without concerning the climate and the skill level of welding engineer. The CCJ composed of parts of coupler, clipper and bolts.

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