Bentuk, Dimensi Dan Cara Pemasangan Sheet Pile
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
ー
ー
0.04max.
0.04max.
ー
ー
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
ー
ー
Even
Item Full width
Under 10 mm
ー
10 mm and over to 16 mm excl.
± 1.2mm
16 mm and over
ー
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
ー
t
W
W
Dimension
12
h
0
10 m and under in length
Difference in vertically cut section
Type
ー
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
4°
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.
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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
15
■ 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
ー
ー
0.04max.
0.04max.
ー
ー
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
19
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
21
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