Steel Sheet Piling Analysis & Design In accordance with BS EN1997-1:2004 - Code of Practice for Geotechnical design and the recommended values.

1. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 1 of 11
STEEL SHEET PILING ANALYSIS & DESIGN
In accordance with BS EN1997-1:2004 - Code of Practice for
Geotechnical design and the recommended values.
Design summary
Combination1
Description Unit Provided Required Utilisation Result
Total length required mm 13500 12058 1.120 PASS
Moment capacity kNm/m 580.4 547.0 1.061 PASS
Shear capacity kN/m 923.3 436.8 2.114 PASS
Combination2
Description Unit Provided Required Utilisation Result
Total length required mm 13500 13201 1.023 PASS
Moment capacity kNm/m 580.4 547.5 1.060 PASS
Shear capacity kN/m 923.3 386.7 2.387 PASS
Geometry
Total length of sheet pile provided; Hpile = 13500 mm
Number of different types of soil; Ns = 1
Retained height; dret = 3500 mm
Depth of unplanned excavation; dex = 500 mm
Total retained height; ds = 4000 mm
Angle of retained slope;  = 0.0 deg

2. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 2 of 11
Depth from GL to top of water table retained side; dw = 1500 mm
Depth from GL to top of water table retaining side; dwp = 4000 mm
Loading
Variable surcharge; po,Q = 10.0 kN/m2
Soil characteristic properties table
Soil 'k (deg) k (deg) m (kN/m3) s (kN/m3) h (mm)
1 30.0 20.0 15.0 17.0 13500
Partialfactors on actions - Section A.3.1 - Combination 1
Permanent unfavourable action; G = 1.35
Permanent favourable action; G,f = 1.00
Variable unfavourable action; Q = 1.50
Angle of shearing resistance; ' = 1.00
Weight density;  = 1.00
Design properties table - combination1
Soil 'd d m.d s.d Ka Kp
1 30.0 20.0 15.0 17.0 0.297 6.105

3. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 3 of 11
Overburden on active side
Overburden at 0 mm below GL in soil 1; OB'a11 = po,Q  Q = 15.0 kN/m2
Overburden at 1500 mm below GL in soil 1; OB'a21 = G  m.d1  ha1 + OB'a11 = 45.4 kN/m2
Overburden at 4000 mm below GL in soil 1; OB'a31 = G  d.d1  ha2 + OB'a21 = 69.6 kN/m2
Overburden at 10954 mm below GL in soil 1; OB'a41 = G  d.d1  ha3 + OB'a31 = 137.1 kN/m2

4. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 4 of 11
Overburden on passive side
Overburden at 4000 mm below GL in soil 1; OB'p31 = 0 kN/m2
= 0.0 kN/m2
Overburden at 10954 mm below GL in soil 1; OB'p41 = G,f  d.d1  hp3 + OB'p31 = 50.0 kN/m2
Pressureon active side
Active at 0 mm below GL in soil 1; p'a11 = Ka1  OB'a11 = 4.5 kN/m2
Active at 1500 mm below GL in soil 1; p'a21 = Ka1  OB'a21 = 13.5 kN/m2
Active at 4000 mm below GL in soil 1; p'a31 = Ka1  OB'a31 + G  w  (dL3 - dw) = 53.8 kN/m2
Active at 10954 mm below GL in soil 1; p'a41 = Ka1  OB'a41 + G  w  (dL4 - dw) = 166.0 kN/m2
Pressureon passive side
Passive at 4000 mm below GL in soil 1; p'p31 = Kp1  OB'p31 + G,f  w  (dL3 - max(ds, dw)) = 0.0 kN/m2
Passive at 10954 mm below GL in soil 1; p'p41 = Kp1  OB'p41 + G,f  w  (dL4 - max(ds, dw)) = 373.5
kN/m2
By iteration the depth at which the active moments equal the passive moments has been determined
as 10954 mm as follows:-
Active momentabout10954 mm
Moment level 1; Ma11 = 0.5  p'a11  ha1  ((H - dL2) + 2/3  ha1) = 35.0 kNm/m
Moment level 1; Ma12 = 0.5  p'a21  ha1  ((H - dL2) + 1/3  ha1) = 100.7 kNm/m
Moment level 2; Ma21 = 0.5  p'a21  ha2  ((H - dL3) + 2/3  ha2) = 145.4 kNm/m
Moment level 2; Ma22 = 0.5  p'a31  ha2  ((H - dL3) + 1/3  ha2) = 523.8 kNm/m
Moment level 3; Ma31 = 0.5  p'a31  ha3  ((H - dL4) + 2/3  ha3) = 867.4 kNm/m
Moment level 3; Ma32 = 0.5  p'a41  ha3  ((H - dL4) + 1/3  ha3) = 1337.7 kNm/m

5. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 5 of 11
Passive momentabout10954 mm
Moment level 3; Mp31 = 0.5  p'p31  hp3  ((H - dL4) + 2/3  hp3) = 0.0 kNm/m
Moment level 3; Mp32 = 0.5  p'p41  hp3  ((H - dL4) + 1/3  hp3) = 3010.1 kNm/m
Totalmoments about10954mm
Total active moment; Ma = 3009.9 kNm/m
Total passive moment; Mp = 3009.9 kNm/m
Required pile length
Length of pile required to balance moments; H = 10954 mm
Depth of equal pressure; dcontra = 5432 mm
Add 20% below this point; de_add = 1.2  (H - dcontra) = 6626 mm
Minimum required pile length; Htotal = dcontra + de_add = 12058 mm
Pass - Provided length of sheet pile greater than minimum required length of pile
Pile capacity (EN1993-5)
Maximum moment in pile (from analysis); Mpile = max(abs(Mmin), abs(Mmax)) / 1m = 547.0 kNm/m
Maximum shear force in pile (from analysis); Vpile = 436.8 kN/m
Nominal yield strength of pile; fy_pile = 270 N/mm2
Name of pile; Arcelor AU25
Classification of pile; 2
Plastic modulus of pile; Wpl.y = 2866 cm3
/m

6. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 6 of 11
Shear buckling of web (cl.5.2.2(6))
Width of section; c = h / sin(pile) = 551 mm
Thickness of web; tw = s = 10.2 mm
 = (235 N/mm2
/ fy_pile) = 0.933
c / tw = 54.1 = 57.9   <= 72  
PASS - Shear buckling of web within limits
Bending
Interlock reduction factor (cl.5.2.2); B = 0.75
Design bending resistance (eqn.5.2); Mc,Rd = Wpl.y  fy_pile  B / M0 = 580.4 kNm/m
PASS - Moment capacity exceeds moment in pile
Shear
Projected shear area of web (eqn.5.6); Av = s  (h - t) = 4442 mm2
Design shear resistance (eqn.5.5); Vpl,Rd = Av  fy_pile / ((3)  M0) / b = 923.3 kN/m
PASS - Shear capacity exceeds shear in pile
Partialfactors on actions - Section A.3.1 - Combination 2
Permanent unfavourable action; G = 1.00
Permanent favourable action; G,f = 1.00
Variable unfavourable action; Q = 1.30
Angle of shearing resistance; ' = 1.25
Weight density;  = 1.00

7. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 7 of 11
Design properties table - combination2
Soil 'd d m.d s.d Ka Kp
1 24.8 16.2 15.0 17.0 0.364 3.977

8. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 8 of 11
Overburden on active side
Overburden at 0 mm below GL in soil 1; OB'a11 = po,Q  Q = 13.0 kN/m2
Overburden at 1500 mm below GL in soil 1; OB'a21 = G  m.d1  ha1 + OB'a11 = 35.5 kN/m2
Overburden at 4000 mm below GL in soil 1; OB'a31 = G  d.d1  ha2 + OB'a21 = 53.5 kN/m2
Overburden at 11950 mm below GL in soil 1; OB'a41 = G  d.d1  ha3 + OB'a31 = 110.6 kN/m2
Overburden on passive side
Overburden at 4000 mm below GL in soil 1; OB'p31 = 0 kN/m2
= 0.0 kN/m2
Overburden at 11950 mm below GL in soil 1; OB'p41 = G,f  d.d1  hp3 + OB'p31 = 57.2 kN/m2
Pressureon active side
Active at 0 mm below GL in soil 1; p'a11 = Ka1  OB'a11 = 4.7 kN/m2
Active at 1500 mm below GL in soil 1; p'a21 = Ka1  OB'a21 = 12.9 kN/m2
Active at 4000 mm below GL in soil 1; p'a31 = Ka1  OB'a31 + G  w  (dL3 - dw) = 44.0 kN/m2
Active at 11950 mm below GL in soil 1; p'a41 = Ka1  OB'a41 + G  w  (dL4 - dw) = 142.8 kN/m2
Pressureon passive side
Passive at 4000 mm below GL in soil 1; p'p31 = Kp1  OB'p31 + G,f  w  (dL3 - max(ds, dw)) = 0.0 kN/m2
Passive at 11950 mm below GL in soil 1; p'p41 = Kp1  OB'p41 + G,f  w  (dL4 - max(ds, dw)) = 305.3
kN/m2

9. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 9 of 11
By iteration the depth at which the active moments equal the passive moments has been determined
as 11950 mm as follows:-
Active momentabout11950 mm
Moment level 1; Ma11 = 0.5  p'a11  ha1  ((H - dL2) + 2/3  ha1) = 40.6 kNm/m
Moment level 1; Ma12 = 0.5  p'a21  ha1  ((H - dL2) + 1/3  ha1) = 106.2 kNm/m
Moment level 2; Ma21 = 0.5  p'a21  ha2  ((H - dL3) + 2/3  ha2) = 155.4 kNm/m
Moment level 2; Ma22 = 0.5  p'a31  ha2  ((H - dL3) + 1/3  ha2) = 483.0 kNm/m
Moment level 3; Ma31 = 0.5  p'a31  ha3  ((H - dL4) + 2/3  ha3) = 926.9 kNm/m
Moment level 3; Ma32 = 0.5  p'a41  ha3  ((H - dL4) + 1/3  ha3) = 1504.2 kNm/m
Passive momentabout11950 mm
Moment level 3; Mp31 = 0.5  p'p31  hp3  ((H - dL4) + 2/3  hp3) = 0.0 kNm/m
Moment level 3; Mp32 = 0.5  p'p41  hp3  ((H - dL4) + 1/3  hp3) = 3216.1 kNm/m
Totalmoments about11950 mm
Total active moment; Ma = 3216.3 kNm/m
Total passive moment; Mp = 3216.1 kNm/m
Required pile length
Length of pile required to balance moments; H = 11950 mm
Depth of equal pressure; dcontra = 5694 mm

10. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 10 of 11
Add 20% below this point; de_add = 1.2  (H - dcontra) = 7508 mm
Minimum required pile length; Htotal = dcontra + de_add = 13201 mm
Pass - Provided length of sheet pile greater than minimum required length of pile
Pile capacity (EN1993-5)
Maximum moment in pile (from analysis); Mpile = max(abs(Mmin), abs(Mmax)) / 1m = 547.5 kNm/m
Maximum shear force in pile (from analysis); Vpile = 386.7 kN/m
Nominal yield strength of pile; fy_pile = 270 N/mm2
Name of pile; Arcelor AU25
Classification of pile; 2
Plastic modulus of pile; Wpl.y = 2866 cm3
/m
Shear buckling of web (cl.5.2.2(6))
Width of section; c = h / sin(pile) = 551 mm
Thickness of web; tw = s = 10.2 mm
 = (235 N/mm2
/ fy_pile) = 0.933
c / tw = 54.1 = 57.9   <= 72  
PASS - Shear buckling of web within limits
Bending
Interlock reduction factor (cl.5.2.2); B = 0.75
Design bending resistance (eqn.5.2); Mc,Rd = Wpl.y  fy_pile  B / M0 = 580.4 kNm/m
PASS - Moment capacity exceeds moment in pile

11. GEODOMISI Ltd. - Dr. Costas
Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461 -
Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info
Project: Steel Sheet Piling Analysis & Design In
accordance with BS EN1997-1:2004 - Code of
Practice for Geotechnical design and the
recommended values.
Job Ref.
www.geodomisi.com
info@geodomisi.com
Section
Civil & Geotechnical Engineering
Sheet no./rev. 1
Calc.
Dr. C. Sachpazis
Date
24/01/2019
Chk'd by
Date App'd by Date
Geodomisi Ltd.
Page 11 of 11
Shear
Projected shear area of web (eqn.5.6); Av = s  (h - t) = 4442 mm2
Design shear resistance (eqn.5.5); Vpl,Rd = Av  fy_pile / ((3)  M0) / b = 923.3 kN/m
PASS - Shear capacity exceeds shear in pile
GEODOMISI Ltd. - Dr. Costas Sachpazis
Civil & Geotechnical Engineering Consulting Company for
Structural Engineering, Soil Mechanics, Rock Mechanics,
Foundation Engineering & Retaining Structures.
Tel.: (+30) 210 5238127, 210 5711263 - Fax.:+30 210 5711461
- Mobile: (+30) 6936425722 & (+44) 7585939944,
www.geodomisi.com - costas@sachpazis.info