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We have various construction methods and products, which excel in measures against noise and vibration, environmental measures, or quake resistance, shortening of construction periods or reduction of costs.
- Steel Pipe PilePorts and rivers
Bridge -
- 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 PilePorts and rivers
Bridge -
- 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 FoundationRoads and Railways
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Foundations possibile to be used both for temporary cofferdams and for permanent foundations can reduce construction periods and costs.A group of steel pipe sheet piles moves together,which can provide high horizontal resistance and vertical bearing capacity,along with reducing the occupied area at the same time.Using the interlocks of high shear strength can further reduce the size of foundations.The foundation can also be ued for aseismic retrofitting of bridges.
- NS ECO-PILE™Roads and Railways
Ports and rivers
Construction and building -
- 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
- U-type sheet pilesPorts and rivers
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- U-type sections have been widely used for various types of permanent and temporary structures,and are one of the most familiar sheet piles among both designers and users.
- NS-SP-Ⅱ,Ⅲ,ⅢA,,Ⅳ,ⅤⅬ and ⅥⅬ are solidly designed.These sections are especially suitable for repeated use,and have acquired high market acceptance from users.
- U-type sections offer section modulus ranging from 874 ㎤/m to 3,820 ㎤/m.
- Hat-type sheet pilesPorts and rivers
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Hat-type sheet pile is 900mm in width.- Superb drivability：The large sectional area of the Hat-Type sheet pile realizes superior drivability.
- High structural reliability：No reductioon is required in sectional properties to consider the possible lack of shear force transmission at the interlocks,which is true for U-type steel sheet piles.
- Excellent cost-effectiveness：The amount of steel per unit wall can be reduced,resulring in improved total cost.
- Hat-type and H-shape combined high stiffnes steel sheet pilesPorts and rivers
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- Availability of numerous sectional properties：Hat-type and H-shape combined high stiffness steel sheet piles come in combination of Hat-type sheet piles which have four types and H-shape sections which have many types.Eventually they provide more than 200 types of economical properties(Section modulus per meter of wall:Approx.2,320 to 19,970 ㎤/m)
- Ease of Installation：An ordinary vivratory hammer is directly applicable for driving.The Hat-type and H-shape combined high stiffness steel sheet pile,having higher moment of inertia per pile compared with Z-type and other type piles,is very easy to work with.
- Straight web-type sheet pilesPorts and rivers
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- High joint strength：This type of sheet pile boasts extremely high tensile strength at its interlocking sections,up to 5.88MN per linear meter of joint length,and is suited for use in celluar-type structures,such as quay walls,manmade island seawalls,cofferdams,and other similar projects.In addition,we can provide the longest product currently possible :a maximum of 38.0m.
- Large deviation angle：This sheet pile has large deviation angle at interlocks(the interlock swing),the maximum angles for the combination of the identical types of straight web-type sheet piles are respectively 10.0 and 12.5.
- 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.
- Lean Duplex Stainless Steel
(NSSC2120™ and SUS323L)Ports and rivers -
This is a new type of stainless steel optimum for measures against tsunamis and water control measures such as dams, floodgates, and gates. The two-phase metallographic structure has achieved strength approximately twice that of the conventional type (SUS304). This is resource-saving stainless steel with less Ni and other alloy elements while its corrosion resistance is higher.
