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The steel pipe piles of Nippon Steel are used in many fields and have acquired high market acceptance due to their excellent product quality and construction efficiencies that derive from their use.
Steel sheet piles
- Steel Pipe Pile
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- Steel pipe piles are high quality with automatic spiral welding technology and pipe diameter from 600 ~ 3,000mm with thickness 6 ~ 25.4mm.
- Widely used in ports and harbors (Jetty and breakwater), piles can be easily penetrate into ground. Steel Pile Pipes help to increase horizontal bearing capacity due to high bending strength.
- Easy to weld, can choose the diameter and the pipe length optimally for economic design. Easy jointing with supperstructures, lightweight and high strength contributes to easy handling and transport.
- Steel Pipe Sheet Pile
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Hat-type sheet pile is 900mm in width.- Steel Pipe Sheet Piles have similar characteristics to Steel Pipe Piles but there are adidtional interlock on both sides. Types of interlock are P-P, P-T and L-T.
- Steel Pipe Sheet Piles apply to port and harbors (Quay wall, Revetment), bridge foundations (Steel Pipe Sheet Pile foundation) and urban civil work such as earth retaining walls, cofferdams.
- Thanks to the interlock of Steel Pipe Sheet Pile, promote outstanding features such as increasing high bearing capacity, cost competitiveness, shortening construction time in deep water area, soft soil and difficult construction areas.
- Steel pipe sheet pile foundationMain tower foundation
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A steel pipe sheet pile attaching the pipe joint to a steel pipe pile is continuously built in a closed shape like a circle at the site. It integrally behaves as a steel well foundation and high horizontal resistance/vertical support force can be obtained. In construction, it can also be used as temporary coffering and is excellent in economy.
<Usage Sample>
- Steel pipe pile method/NS Eco-pile™ methodMain tower foundation
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Method by which a steel pipe provided with a "spiral blade" at the end is rotated and press-fitted. Construction with low noise and low vibration and without earth removal can be performed, and the bottom expansion effect of the blade can bring high pushing support force/pulling resistance force.
- Eco-friendly piling method ：Low noise and low vibration,no waste soil,no ground pollution
- High reliability and quality：Large bearing capacity and pulling resistance capacity,thanks to the helical blade
- Highly applicable to severe construction conditions：Small area,nearby existing structure, requirement for small foundations
<Usage Sample>
- Submerged Strut methodPorts and rivers
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- The improved performance of the structure makes it possible to reduce the number of piles used.Further, using the prefabricated structural members,reduced structure occupancy width,and reduction in the soil improvement area, speedy and space-saving construction is possible.
- Applicable to construction in which quay walls are to be deepened or reinforced while facilities behind river revetments are left untouched,as well as to aseismic retrofitting of quay walls.
