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
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| 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
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| 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
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| 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 |
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