Bentuk, Dimensi Dan Cara Pemasangan Sheet Pile

September 8, 2017 | Author: Teuku Rizki Muda Keulana | Category: Sheet Metal, Deep Foundation, Rolling (Metalworking), Engineering Tolerance, Welding
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Short Description

Sheet Pile...

Description

Construction Products

STEEL SHEET PILES

http://www.nssmc.com/

2-6-1 Marunouchi, Chiyoda-ku,Tokyo 100-8071 Japan Tel: +81-3-6867-4111 STEEL SHEET PILES K007en_01_201210f © 2012 NIPPON STEEL & SUMITOMO METAL CORPORATION

〈NOTE〉 “NS-SP” used in this brochure are Nippon Steel & Sumitomo Metal’s internal product codes for steel sheet pile products.

Features

Foreword

A Wide Selection of Shapes and Types

The steel sheet piles of Nippon Steel & Sumitomo Metal are used in many fields (port and harbor structures, river revetment, earth retention and cofferdams) and have acquired high market acceptance due to their excellent product quality and to construction efficiencies that derive from their use. Nippon Steel & Sumitomo Metal, drawing on a wealth of rolling, fabrication and application and further adding to the superb properties of its sheet pile, has recently developed various new products and construction methods in this field, which have also won for the company a high reputation. Based on an accumulation of technical expertise, Nippon Steel & Sumitomo Metal has developed and placed on the market two versions (NSP-10H and NSP-25H) of a new line of sheet piles:”hat-type steel sheet piles 900.” Nippon Steel & Sumitomo Metal will continue its efforts to develop novel products that bring the properties of sheet piles into full play and to respond to more stringent and diversifying user needs in the future.

Sheet pile is available in a wide range of selection moduli per meter of pile wall width, ranging from 874 to 8750 cm³. This allows selection of the most economical type of sheet pile to suit the design requirements and the intended construction method.

Superb Drivability and Water tightness Clearances of joints are tight enough to ensure excellent drivability as well as water tightness of sheet pile wall.

Contents

Notice: While every effort has been made to ensure the accuracy of the information contained within this publication, the use of the information is at the reader's risk and no warranty is implied or expressed by Nippon Steel & Sumitomo Metal Corporation with respect to the use of the information contained herein. The information in this publication is subject to change or modification without notice. Please contact the Nippon Steel & Sumitomo Metal Corporation office for the latest information. Please refrain from unauthorized reproduction or copying of the contents of this publication. The names of our products and services shown in this publication are trademarks or registered trademarks of Nippon  Steel & Sumitomo Metal Corporation , affiliated companies, or third parties granting rights to Nippon Steel & Sumitomo Metal Corporation or affiliated companies. Other product or service names shown may be trademarks or registered trademarks of their respective owners.

Foreword and Features ……………………………………… 1 Production Process ……………………………………………… 2 Products …………………………………………………………………… 3  Hat-type sheet pile 900 ……………………………………… 3  U type sheet pile …………………………………………………… 6  Corner section sheet pile ………………………………… 11  NS-SP-J ………………………………………………………………… 14  Straight web-type sheet pile …………………………… 16 Usage………………………………………………………………………… 18  (1)River revetment ………………………………………… 18  (2)Port and harbor structures ……………………… 19  (3)Retaining wall for road and house construction …………………………… 19  (4)Retaining wall by close- proximity ………… 19  (5)Erosion and sedimentation control dam in mountain area ………………………………………… 19 Driving Method …………………………………………………… 20  Vibration method………………………………………………… 20  Press-in method ………………………………………………… 21

1

Production Process

Products Hat-type sheet pile 900

Reheating furnace

● Superb Drivability Large sectional area of the hat type sheet pile realizes superior drivability.

● High Structural Reliability No reductions are required in sectional performance to No.1 Intermediate mills

account for possible lack of shear force transmission

Breakdown mill

such as is true for conventional type of steel sheet piles.

● Excellent Cost-effectiveness The amount of steel per unit wall can be reduced, resulting in improved total cost.

No.2 Intermediate mills

Finishing mill

■ Shapes NS-SP-10H

NS-SP-25H 13.2

Hot saws

10.8

230

300

900 900

■ Sectional Properties t

h

W

Finished product

Dimension

Roller straightener Type

2

Per pile

Effective Effective Thickness Sectional Moment Section area of inertia modulus width height t W h cm² cm⁴ cm³ mm mm mm

Per 1 m of pile wall width Unit mass

Sectional Moment Section area of inertia modulus

Unit mass

kg/m

cm²/m

cm⁴/m

cm³/m

kg/m²

NS-SP-10H

900

230

10.8

110.0

9,430

812

86.4

122.2

10,500

902

96.0

NS-SP-25H

900

300

13.2

144.4

22,000

1,450

113

160.4

24,400

1,610

126

3

■ Sectional Properties after Corrosion

Hat-type sheet pile 900

Sectional properties of hat-type sheet pile after 1 mm corrosion loss per side, totaling 2 mm in both sides, are shown in the table below.

■ Material Quality Classification Weldable hot rolled steel sheet piles JIS A 5523

Chemical composition(%)

Grade

C

Si

Mn

Ceq.(%)

P

S

N

Sectional Properties without corrosion loss Type

Ceq.

SYW295

Z0 (cm³/m)

η ( %)

(cm⁴/m)

I

Z (cm³/m)

NS-SP-10H

10,500

902

72

8,300

713

NS-SP-25H

24,400

1,610

82

20,000

1,320

0.44max. 0.18max.

0.55max.

1.50max.

0.04max.

0.04max.

0.0060max.

SYW390

0.45max.

Note: Ceq.=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14

Charpy V-notch toughness J Type and Tensile direction Test Elongation Standard size Yield point Test Classification Grade Sub-size test specimen Strength of test % Apecimen test specimen N/mm² temperature N/mm² (℃) 10×10mm 10×7.5mm 10×5mm specimen No.1A 18min. 450min. V notch Weldable hot rolled SYW295 295min. No.14B 24min. steel sheet piles 0 43min. 32min. 22min. in rolling No.1A 16min. JIS A 5523 direction SYW390 390min. 490min. No.14B 20min.

Sectional Properties with 1 mm corrosion loss per side

I0 (cm⁴/m)

t1

t1

t2

t2

t1

t1

t1

t2

t2

t2

Steps to calculate sectional properties after corrosion; ① Assume corrosion rate and life time of facility, and calculate the corrosion loss of marine side t₁(mm)and that of land side t₂(mm). ② Calculate corrosion loss rate α(= t₂/t₁). ③ By using the corrosion loss of marine side, t₁ (mm)and the corrosion loss rate α , obtain the reduction ratio of sectional properties, η from the following graphs. ④ Calculate the sectional properties after corrosion loss, Z and I by multiplying the sectional properties before corrosion loss, Z₀ 、and I₀ by the reduction ratio η Section modulus Z = Z₀ ×η Moment inertia I = I₀ ×η

Note: Chemical composition and mechanical properties conform to JIS A 5523-2012. N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012. Grade of S 355GP(EN 10248 Part 1)is also available upon request.

■ Tolerance of Shapes and Dimensions

Height Thickness

Under 10 mm

± 1.0mm

10 mm and over to 16 mm excl.

± 1.2mm

16 mm and over

± 1.5mm

Length Deflection Camber

Thickness

Height

Effective width Full width

Graphs for obtaining the reduction ratio of sectional properties, η η

t₁, t₂

+ Not specified

0

10 m and under in length

Full length(m)× 0.12% max.

Over 10 m in length

(Full length − 10m)× 0.10% + 12mm max.

10 m and under in length

Full length(m)× 0.25% max.

Over 10 m in length

(Full length − 10m)× 0.20% + 25mm max.

Difference in vertically cut section

Within 4% of width

Mating joint angle

≧ 4°

Note:1.Tolerance of shapes and Dimensions conform to JIS A 5523-2012 2.“ Deflection ”stands for the deviation from the plain parallel to the sheet pile wall, and “Camber”stands for the deviation from the plain for vertical to the sheet pile wall.

■ Compatibility Interlocks of 10H version and 25H version are compatible.

α

Note

: reduction ratio of sectional properties after corrosion(%) : corrosion loss of marine side and land side(mm) : corrosion loss rate, α= t₂/t₁ : Only the illustrated ranges are effective in the following graphs.

NS-SP-10H

NS-SP-25H

100

100

90

90

80

80

η (%)

Full width

Tolerance + 10mm − 5mm ± 4%

η (%)

Item

70

70

60

60

α=0

α=1.0 α=0.75 α=0.5

■ Mating joint Angle Each interlock allows a certain rotation. The minimum angle of mating joint (the interlock swing) for the combination of the identical versions of hat-type sheet piles is shown in the figure below.

Io, Zo : Moment inertia and section modulus without corrosion loss η : Reduction ratio after corrosion I, Z : Moment inertia and section modulus after corrosion

α=0.25

α=0

50

α=1.0 α=0.75 α=0.5 α=0.25

50 0

1

2

t( 1 mm)

3

4

0

1

2

3

4

t( 1 mm)

4° 4°

4

5

h

t

U type sheet pile ●U type sections have been widely used for

X

■ Sectional Properties

various types of permanent and temporary structures, and one of the most familiar sheet piles among designers as well as users. ●N S - S P - Ⅱ,Ⅲ,ⅢA,Ⅳ,ⅤL and ⅥL a r e s o l i d l y 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 874cm³ to 3820cm³ per linear meter of wall.

Dimension Type

X W

Per pile

Per 1 m of pile wall width

Effective Effective Thickness Sectional Moment Section area of inertia modulus width height t W h cm² cm⁴ cm³ mm mm mm

Unit mass

Sectional Moment Section area of inertia modulus

Unit mass

kg/m

cm²/m

cm⁴/m

cm³/m

kg/m²

NS-SP-Ⅱ

400

100

10.5

61.18

1,240

152

48.0

153.0

8,740

874

120

NS-SP-Ⅲ

400

125

13.0

76.42

2,220

223

60.0

191.0

16,800

1,340

150

NS-SP-ⅢA

400

150

13.1

74.40

2,790

250

58.4

186.0

22,800

1,520

146

NS-SP-Ⅳ

400

170

15.5

96.99

4,670

362

76.1

242.5

38,600

2,270

190

NS-SP-ⅤL

500

200

24.3

133.8

7,960

520

105

267.6

63,000

3,150

210

NS-SP-ⅥL

500

225

27.6

153.0

11,400

680

120

306.0

86,000

3,820

240

NS-SP-ⅡW

600

130

10.3

78.70

2,110

203

61.8

131.2

13,000

1,000

103

NS-SP-ⅢW

600

180

13.4

103.9

5,220

376

81.6

173.2

32,400

1,800

136

NS-SP-ⅣW

600

210

18.0

135.3

8,630

539

106

225.5

56,700

2,700

177

■ Material Quality ■ Shapes

Chemical composition Classification

C

Si

Mn

P

S

N

0.18max.

0.55max.

1.50max.

0.04max.

0.04max.

0.0060max.

Ceq.

600

210

13.4

NS-SP-ⅣW

180

130

10.3

NS-SP-ⅢW

18.0

NS-SP-ⅡW

Ceq.(%)

Grade

600

600

Weldable hot rolled steel sheet piles JIS A 5523

SYW295

Hot rolled steel sheet piles JIS A 5528

SY295

0.44max.

SYW390

0.45max. ー





0.04max.

0.04max.





SY390

Note: Ceq.=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14

200

500

27.6

NS-SP-ⅥL

225

NS-SP-ⅤL

24.3

NS-SP-Ⅳ

15.5

13.1 400

400

170

A

150

13.0

10.5

100

NS-SP-

400

400

6

NS-SP-Ⅲ

125

NS-SP-Ⅱ

Charpy V-notch toughness J Type and Tensile direction Test Elongation Standard size Yield point Test Classification Grade Sub-size test specimen Strength % of test Apecimen N/mm² temperature test specimen N/mm² specimen (℃) 10×10mm 10×7.5mm 10×5mm No.1A 18min. 450min. V notch Weldable hot rolled SYW295 295min. No.14B 24min. steel sheet piles 0 43min. 32min. 22min. in rolling No.1A 16min. JIS A 5523 direction SYW390 390min. 490min. No.14B 20min. No.1A 18min. 295min. 450min. Hot rolled steel SY295 No.14B 24min. ー ー ー ー ー sheet piles No.1A 16min. JIS A 5528 SY390 390min. 490min. No.14B 20min. Note: Chemical composition and mechanical properties conform to JIS A 5523-2012 or JIS A 5528-2012 . N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012. Grade of S 355GP(EN 10248 Part 1)is also available upon request.

500

7

■ Sectional Properties after Corrosion

U type sheet pile

Sectional properties of U type sheet pile after 1 mm corrosion loss per side, totaling 2 mm in both sides, are shown in the table below.

■ Tolerance of Shapes and Dimensions

Thickness

Item

JIS A 5523

JIS A 5528

Total width

Effective width ×± 1% (+ 6mm and − 5mm for Ⅱw, Ⅲw and Ⅳw)

+ 10mm − 5mm

Type

Total Height

± 4%

± 4%

Under 10 mm

+ 1.0mm − 0.3mm

± 1.0mm

10 mm and over to 16 mm excl.

+ 1.2mm − 0.3mm

16 mm and over

+ 1.5mm − 0.3mm

Sectional Properties with 1 mm corrosion loss per side

I0 (cm⁴/m)

Z0 (cm³/m)

η ( %)

(cm⁴/m)

I

Z (cm³/m)

NS-SP-Ⅱ

8,740

874

81

7,080

708

NS-SP-Ⅲ

16,800

1,340

85

14,300

1,140

± 1.2mm

NS-SP-ⅢA

22,800

1,520

84

19,200

1,280

± 1.5mm

NS-SP-Ⅳ

38,600

2,270

86

33,200

1,950

NS-SP-ⅤL

63,000

3,150

91

57,300

2,870

NS-SP-ⅥL

86,000

3,820

92

79,100

3,510

+ Not specified

Length

Sectional Properties without corrosion loss

0

10 m and under in length

Full length × 0.1% max. 20mm max.

Overall length(m) × 0.12%max. [(Overall length − 10m) × 0.10% + 12mm]

NS-SP-ⅡW

13,000

1,000

81

10,500

810

Full length × 0.2% max. 20mm max.

Overall length(m) × 0.25%max. [(Overall length − 10m) × 0.20% + 25mm]

NS-SP-ⅢW

32,400

1,800

85

27,500

1,530

Difference in vertically cut section

Within 4% of width

4% of width max.

NS-SP-ⅣW

56,700

2,700

88

49,900

2,380

Difference in total width

4mm and under in difference between maximum and minimum total widths within 1m length from the edge

Edge deflection

The values measured at the topside 1m from the edge and up to 1.5mm,or 1/2 the values measured at the tangent side and up to 1.5mm

Deflection Camber

Over 10 m in length 10 m and under in length Over 10 m in length

t2

Note: 1. Tolerance of shapes and Dimensions conform to JIS A 5523-2012 or JIS A 5528-2012 or JIS A 5528-2012. 2.“Deflection”stands for the deviation from the plain parallel to the sheet pile wall, and“Camber”stands for the deviation from the plain for vertical to the sheet pile wall.

t1

t1 t2

t2

Full length

■ Compatibility

t1 t2

land side 陸側

NS-SP-Ⅱ

NS-SP-Ⅲ

NS-SP-Ⅳ

NS-SP-ⅡW

NS-SP-ⅢW

NS-SP-ⅣW

NS-SP-ⅤL

Io, Zo : Moment inertia and section modulus without corrosion loss η : Reduction ratio after corrosion I, Z : Moment inertia and section modulus after corrosion

海側 side marine

t1

NS-SP-ⅥL

NS-SP-ⅢA

■ Deviation Angle

t1 t1 t2

t2

Steps to calculate sectional properties after corrosion; ① Assume corrosion rate and life time of facility, and calculate the corrosion loss of marine side t₁(mm)and that of land side t₂(mm). ② Calculate corrosion loss rate α(= t₂/t₁). ③ By using the corrosion loss of marine side, t₁ (mm)and the corrosion loss rate α , obtain the reduction ratio of sectional properties, η from the following graphs. ④ Calculate the sectional properties after corrosion loss, Z and I by multiplying the sectional properties before corrosion loss, Z₀ 、and I₀ by the reduction ratio η Section modulus Z = Z₀ ×η Moment inertia I = I₀ ×η

Each interlock allows a certain rotation. The minimum angle of deviation (the interlock swing) for the combination of the identical versions of U type sheet piles is shown in the figure below.

6° 6°

8

9

U type sheet pile

Corner section sheet pile ■ High reliability

Graphs for obtaining the reduction ratio of sectional properties, η η

t₁, t₂ α

Note

●A corner-section sheet pile was developed using

: reduction ratio of sectional properties after corrosion(%) : corrosion loss of marine side and land side(mm) : corrosion loss rate, α= t₂/t₁ : Only the illustrated ranges are effective in the following graphs.

NS-SP-Ⅱ

NS-SP-Ⅲ

NS-SP-ⅢA

the rolling method, as a product replacing the conventional T-shaped corner-section sheet pile produced using weld processing. This cornersection sheet pile does not require welding, thus it greatly reduces weight. ● For assembly, the conventional cast equipment can be used as-is. ●In particular, Larssen sheet piling has been adopted as a base for the shape of corner joints, in order to prevent detachment, and therefore, particularly, joint performance such as fitment and repetition endurance is excellent. ● Corner sheet pile is a newly developed type produced by rolling to replace the conventional T-shape corner sheet pile produced by welding. Thus it eliminates the need for welding and other fabrication processes, and is far lighter in weight.

■ Shapes NS-SP-Ⅳ

NS-SP-ⅤL

NS-SP-ⅥL

NS-SP-CⅢ、NS-SP-CⅣ Corner section sheet pile

U type sheet pile

90°

NS-SP-ⅡW

NS-SP-ⅢW

U type sheet pile

NS-SP-ⅣW

Corner section sheet pile

U type sheet pile

NS-SP-CⅢe

U type sheet pile

10

11

■ Installation

■ Material Quality Chemical composition(%)

NS-SP-CⅢ、NS-SP-CⅣ

Classification

Even Even Odd

Odd

Even

Even

Hot rolled steel sheet piles JIS A 5528

SY295

Mn

P

S

N

0.18max.

0.55max.

1.50max.

0.04max.

0.04max.

0.0060max.

Odd

0.44max.

SYW390

0.45max. ー





Even

Item Full width

Under 10 mm



10 mm and over to 16 mm excl.

± 1.2mm

16 mm and over



Deflection Camber

+ Not specified

h

t

Ordinary joint

Ordinary joint

Corner joint

Full length(m)× 0.12% max.

Over 10 m in length

(Full length − 10m)× 0.10% + 12mm max.

10 m and under in length

Full length(m)× 0.25% max.

Over 10 m in length

(Full length − 10m)× 0.20% + 25mm max.

Thickness t mm

Unit mass

Moment of inertia

Section modulus

cm²

kg/m

cm⁴

cm³

125

13

79.63

62.5

2,330

237

400

125

13

76.40

60.0

1,930

222

400

170

15.5

96.76

76.0

4,630

337

400

NS-SP-CⅢe NS-SP-CⅣ

Within 4% of width

Note:1.Tolerance of shapes and Dimensions conform to JIS A 5528-2012 2.“ Deflection ”stands for the deviation from the plain parallel to the sheet pile wall, and “Camber”stands for the deviation from the plain for vertical to the sheet pile wall.

■ Compatibility

Per pile Sectional area

NS-SP-CⅢ



t

W

W

Dimension

12

h

0

10 m and under in length

Difference in vertically cut section

Type



Tolerance + 10mm − 5mm ± 4%

Length

Effective height h mm

0.04max.

■ Tolerance of Shapes and Dimensions

Thickness

Effective width W mm

0.04max.

SY390

Height

■ Sectional Properties

Ceq.

Note: Chemical composition and mechanical properties conform to JIS A 5523-2012 or JIS A 5528-2012. N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012. Grade of SYW295,SYW390 requires consultation prior to order.

Odd

Odd

SYW295

Si

Charpy V-notch toughness J Type and Tensile direction Test Elongation Standard size Yield point Test Classification Grade Sub-size test specimen Strength of test % Apecimen N/mm² temperature test specimen N/mm² (℃) 10×10mm 10×7.5mm 10×5mm specimen No.1A 18min. 450min. V notch Weldable hot rolled SYW295 295min. No.14B 24min. steel sheet piles 0 43min. 32min. 22min. in rolling No.1A 16min. JIS A 5523 direction SYW390 390min. 490min. No.14B 20min. No.1A 18min. 295min. 450min. Hot rolled steel SY295 No.14B 24min. ー ー ー ー ー sheet piles No.1A 16min. JIS A 5528 SY390 390min. 490min. No.14B 20min.

Even

Even

Weldable hot rolled steel sheet piles JIS A 5523

C

Note: Ceq.=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14

NS-SP-CⅢe

Corner joint

Ceq.(%)

Grade

NS-SP-CⅢ NS-SP-Ⅱ

NS-SP-Ⅲ

NS-SP-CⅢe

NS-SP-Ⅳ

NS-SP-ⅤL

SM-J NS-SP-CⅣ

13

■ Tolerance of Shapes and Dimensions

NS-SP-J

Item

Tolerance + 10mm − 5mm ± 4%

Full width

● Close-proximity installation

Height

SP-J pile can be installed in close proximity to existing structures, permitting construction of retaining walls abutting site boundaries and making the maximum use of site area.

Thickness

Under 10 mm

± 1.0mm

10 mm and over to 16 mm excl.

± 1.2mm

16 mm and over

● 100% intelock integrity

± 1.5mm + Not specified

Length

As interlocks are located on the outermost side of the wall, there is no need to consider reduction of sectional properties due to the slip on interlocks, which permits economical design.

Deflection

● Cost-saving and Work-shortening of

Camber

Temporary Work Compared with the conventional steel sheet pile for temporary work with the effective width of 400mm, SP-J has the effective width of 600mm. This makes it possible to reduce the number of installed piles with less cost and to improve water tightness.

10 m and under in length

0 Full length(m)× 0.12% max.

Over 10 m in length

(Full length − 10m)× 0.10% + 12mm max.

10 m and under in length

Full length(m)× 0.25% max.

Over 10 m in length

(Full length − 10m)× 0.20% + 25mm max.

Difference in vertically cut section

Within 4% of width

Mating joint angle

≧ 4°

Note:1.Tolerance of shapes and Dimensions conform to JIS A 5523-2012 2.“ Deflection ”stands for the deviation from the plain parallel to the sheet pile wall, and “Camber”stands for the deviation from the plain for vertical to the sheet pile wall.

■ Deviation Angle ※NS-SP-J can be interlocked with some of U-type sheet piles. The compatible types for interlocking depand on the use conditions at the site. Please consult Nippon Steel & Sumitomo Metal for details.

■ Shapes 4°

600



13.0 200

W

■ Sectional Properties after Corrosion h

■ Sectional Properties Dimension Type

NS-SP-J

Per pile

Per 1 m of pile wall width

Effective Effective Thickness Sectional Moment Section area of inertia modulus width height t W h cm² cm⁴ cm³ mm mm mm 600

200

Sectional Properties without corrosion loss Type

13.0

111.2

7,250

Unit mass

705

Sectional Moment Section area of inertia modulus

NS-SP-J

Unit mass

kg/m

cm²/m

cm⁴/m

cm³/m

kg/m²

87.3

185.3

12,090

1,175

145

(cm³/m)

Z0

η ( %)

(cm⁴/m)

I

Z (cm³/m)

12,090

1,175

85

10,300

999

I0

Io, Zo : Moment inertia and section modulus without corrosion loss η : Reduction ratio after corrosion I, Z : Moment inertia and section modulus after corrosion

■ Material Quality Classification Weldable hot rolled steel sheet piles JIS A 5523

Grade

Chemical composition(%)

Ceq.(%)

C

Si

Mn

P

S

N

0.18max.

0.55max.

1.50max.

0.04max.

0.04max.

0.0060max.

SYW295

Ceq. 0.44max.

SYW390

0.45max.

Note: Ceq.=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14

Charpy V-notch toughness J Type and Tensile direction Test Elongation Standard size Yield point Test Classification Grade Sub-size test specimen Strength of test % Apecimen test specimen N/mm² temperature N/mm² (℃) 10×10mm 10×7.5mm 10×5mm specimen No.1A 18min. 450min. V notch Weldable hot rolled SYW295 295min. No.14B 24min. steel sheet piles 0 43min. 32min. 22min. in rolling No.1A 16min. JIS A 5523 direction SYW390 390min. 490min. No.14B 20min. Note: Chemical composition and mechanical properties conform to JIS A 5523-2012. N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012. Grade of S 355GP(EN 10248 Part 1)is also available upon request.

14

Sectional Properties with 1 mm corrosion loss per side

(cm⁴/m)

Steps to calculate sectional properties after corrosion; ① Assume corrosion rate and life time of facility, and calculate the corrosion loss of marine side t₁(mm)and that of land side t₂(mm). ② Calculate corrosion loss rate α(= t₂/t₁). ③ By using the corrosion loss of marine side, t₁ (mm)and the corrosion loss rate α , obtain the reduction ratio of sectional properties, η from the following graphs. ④ Calculate the sectional properties after corrosion loss, Z and I by multiplying the sectional properties before corrosion loss, Z₀ 、and I₀ by the reduction ratio η Section modulus Z = Z₀ ×η Moment inertia I = I₀ ×η

t1

t1

t2

t2

t1

t1

t1

t2

t2

t2

Graphs for obtaining the reduction ratio of sectional properties, η η

t₁, t₂ α

Note

: reduction ratio of sectional properties after corrosion(%) : corrosion loss of marine side and land side(mm) : corrosion loss rate, α= t₂/t₁ : Only the illustrated ranges are effective in the following graphs. 100

90

80 η(%)

t

70

50

α=0.25

α=1.0

60

α=0

α=0.75 α=0.5

0

1

2

3

4

5

6

t(mm) 1

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■ Tolerance of Shapes and Dimensions

Straight Web-Type Sheet Pile

Item

Tolerance

●This type of sheet pile boasts extremely high tensile strength at its interlocking sections up to 5.88 MN per

width

± 4mm

linear meter of joint length, and is suited for use in cellular type structure such as quay walls, seawalls of manmade island, cofferdams and other similar works

Height



Thickness

■ Shapes NS-SP-FL

Under 10 mm

+ 1.5mm − 0.7mm

10 mm and over to 16 mm excl.

+ 1.5mm − 0.7mm

16 mm and over



Length

NS-SP-FXL Deflection Camber

+ Not specified

0

10 m and under in length

Full length(m)× 0.15% max.

Over 10 m in length

(Full length − 10m)× 0.10% + 15mm max.

10 m and under in length

Full length(m)× 0.20% max.

Over 10 m in length

(Full length − 10m)× 0.10% + 20mm max.

Difference in vertically cut section

Within 4% of width

Note: 1. Tolerances shown above satisfy JIS A5523-2012 and JIS A5528-2012. 2.“Deflection”stands for the deviation from the plain parallel to the sheet pile wall, and“Camber”stands for the deviation from the plain for vertical to the sheet pile wall.

■ Sectional Properties Dimension Type

Per pile

■ Deviation Angle

Per 1 m of pile wall width

Effective Effective Thickness Sectional Moment Section area of inertia modulus width height t W h cm² cm⁴ cm³ mm mm mm

Unit mass

Sectional Moment Section area of inertia modulus

Unit mass

kg/m

cm²/m

cm⁴/m

cm³/m

kg/m²

NS-SP-FL

500

44.5

9.5

78.57

184

45.7

61.7

157.1

396

89

123

NS-SP-FXL

500

47.0

12.7

98.36

245

60.3

77.2

196.7

570

121

154

Each interlock allows a certain rotation. The maximum angle of deviation(the interlock swing)for the combination of the identical versions of straight web-type sheet piles is shown in the figure below.

Note: 1. Straight web –type sheet pile of SYW295 and SY295 offers joint strength of 3.92 MN/m and over NS-SP-FL and 5.88 MN/m and over for NS-SP-FXL. 2. Straight web –type sheet piles with web thickness of 12.5, 12.0 and 11.5 mm require consultation prior to order.

NS-SP-FL………θ=±12.5° NS-SP-FXL ……θ=±10°

■ Material Quality Chemical composition Classification

Ceq.(%)

Grade

Weldable hot rolled steel sheet piles JIS A 5523

SYW295

Hot rolled steel sheet piles JIS A 5528

SY295

C

Si

Mn

P

S

N

0.18max.

0.55max.

1.50max.

0.04max.

0.04max.

0.0060max.

Ceq. 0.44max.

SYW390

0.45max. ー





0.04max.

0.04max.





SY390

Note: Ceq.=C+Mn/6+Si/24+Ni/40+Cr/5+Mo/4+V/14

Charpy V-notch toughness J Type and Tensile direction Test Elongation Standard size Yield point Test Classification Grade Sub-size test specimen Strength of test % test specimen Apecimen N/mm² temperature N/mm² specimen (℃) 10×10mm 10×7.5mm 10×5mm No.1A 18min. 450min. Weldable hot rolled SYW295 295min. V notch No.14B 24min. steel sheet piles in rolling No.1A 16min. JIS A 5523 direction SYW390 390min. 490min. 0 43min. 32min. 22min. No.14B 20min. No.1A 18min. 295min. 450min. Hot rolled steel SY295 No.14B 24min. ー ー ー ー ー sheet piles No.1A 16min. JIS A 5528 SY390 390min. 490min. No.14B 20min. Note: Chemical composition and mechanical properties conform to JIS A 5523-2012 or JIS A 5528. N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012. Grade of S 355GP(EN 10248 Part 1)is also available upon request.

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Usage

Quay walls of port facilities

River embankments Permanent use as well as temporary cofferdam use

Earth-retaining wall for road construction Permeable sheet pile wall with holes for subsurface water flow

Steel sheet pile wall is covered by concrete panels to conform to the neighboring view.

Retaining wall by close-proximity Subsurface water flow stoppage wall

18

Erosion and sedimentation control dam in mountain area

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Driving Method

■ Press-in method Sheet piles are pressed-in using hydraulic mechanism by grasping the middle place of sheet pile while taking

■ Vibration method

reaction by holding driven piles. Driving machine is compact, and need not crane, though it needs crane

Sheet piles are driven into the ground by transferring to them up-and-down vibratory forces generated by vibratory hammer. Because percussion force is not used, pile head is not injured, driving efficiency is high and, is useful for both driving and pulling piles.

separately for hanging sheet piles. It is applicable to the driving conditions such as narrow places and low clearance places. It is also possible to drive piles in conditions of low noise and low vibration. When ground is so hard that driving is difficult by using only pressing machine, it is useful to use water jet cutter together.

Press-in machine for hat-type sheet pile 900

Over view

Side view Pressing-in of hat-type sheet pile 900

Press-in machine for U-type sheet pile

Driving of U-type sheet pile

Driving of hat-type sheet pile 900 Web

Clamp Flange

Clamping position of U-type sheet pile Web

Clamp

Over view

Clamp

Flange

Side view

Pressing-in of U-type sheet pile

Press-in machine for NS-SP-J (close-proximity installation) Clamp

Arm

Clamping position of hat-type sheet pile 900

Clamp for hat-type sheet pile 900

20

Vibratory hammer equipped with clamp for hat-type sheet pile 900

Over view

Side view Pressing-in of NS-SP-J

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