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NS-SP Sheet Piles

NS-SP sheet piles are produced by Nippon&Sumitomo Metal manufacturers and have three main sections, U type sheet pile, hat type sheet piles and straight web sheet piling. NS-SP sheet piling have many most used profiles, like NS-SP-type ⅠA,Ⅱ, IIA, Ⅲ, ⅢA, Ⅳ, ⅤL, ⅥL, ⅡW, ⅢW, ⅣW. In marine environment, the material is susceptible to corrosion, particularly in warm climates. The splash zone ( between mean low water and the upper limit of wave contact) and areas near mud line are most vulnerable to corrosion.

The total tonnage supplied was 541 tons. Pile shoes were fitted to all Main Wall piles due to the hard driving conditions. The tie rods were supplied by Arcelor and Thyssencrupp under the guidance and design . The rods supplied were M47mm of steel grade 950/1050 at 3.0 metre centres in 15.0 metre lengths. Tie rods were wrapped in Denso tape prior to installation.

Protective coatings such as bitumen or steel are recommended. River control structures and flood defence Steel sheet piling has traditionally been used for the support and protection of river banks, lock and sluice construction, and flood protection. NS-SP Sheet pile can be be driven through water make piles the obvious choice.

 

U type sheet pile

Section Dimensions Sectional Area Mass Moment of inertia Modulus  of section 
Width Height Thickness Pile Wall
b h/2 t          
mm Mm mm cm2/pile kg/m kg/m2 cm4/m cm3/m
NS-SP-ⅠA 400 85 8 45.21 35.5 88.8 4500 529
NS-SP-Ⅱ 400 100 10.5 61.2 48 120 8740 874
NS-SP-IIA 400 120 9.2 55.01 43.2 108 10600 880
NS-SP-Ⅲ 400 125 13 76.4 60 150 16800 1340
NS-SP-ⅢA 400 150 13.1 74.4 58.4 146 22800 1520
NS-SP-Ⅳ 400 170 15.5 97 76.1 190 38600 2270
NS-SP-ⅤL 500 200 24.3 133.8 105 210 63000 3150
NS-SP-ⅥL 500 225 27.6 153 120 240 86000 3820
NS-SP-ⅡW 600 130 10.3 78.7 61.8 103 13000 1000
NS-SP-ⅢW 600 180 13.4 104 81.6 136 32400 1800
NS-SP-ⅣW 600 210 18 135.3 106 177 56700 2700
NS-SP-SX10 600 130 10.3 78.7 61.8 103 13000 1000
NS-SP-SX18 600 180 13.4 104 81.6 136 32400 1800
NS-SP-SX27 600 210 18 135.3 106 177 56700 2700

 

Hat type sheet piles

Section Dimensions Sectional Area Mass Moment of inertia Modulus  of section 
Width Height Thickness Pile Wall
b h/2 t          
mm Mm mm cm2/pile kg/m kg/m2 cm4/m cm3/m
NS-SP-10H 900 230 10.8 110.0 86.4 122.2 10500 902
NS-SP-25H 900 300 13.2 144.4 113 160.4 24400 1610
NS-SP-45H 900 368 15 187.0 147 207.8 45000 2450
NS-SP-50H 900 370 17 212.7 167 236.3 51100 2760

 

Straight web type sheet piles

Section Dimensions Sectional Area Mass Moment of inertia Modulus  of section 
Width Height Thickness Pile Wall
b h/2 t          
mm Mm mm cm2/pile kg/m kg/m2 cm4/m cm3/m
NS-SP-FL 500 44.5 9.5 78.57 61.7 123 396 157.1
NS-SP-FXL 500 47.0 12.7 98.36 77.2 154 570 196.7