# Sheet Pile Design

#### Short Description

design of sheet piles...

#### Description

Elements of Soil Mechanics, 8th Edition Exercises 7.3 & 7.5

The worksheets in this spreadsheet illustrate the use state design methods for the design of cantilever she Although the spreadsheet contains the data for Exerci data may be changed so that the reader can see the retained height etc. Instructions:

1. On opening the spreadsheet, the user must cli ck " box. (The macros contain the algorithms used to dete 2. As the routines call data from the partial factors sp whether to update the data will appear. To use the de values, click "Don't Update". If, however, you have c spreadsheet, spreadsheet, click "Update". 2. Select any sheet to continue. Ian Smith, Sept 2005

of the BS8002 & EC 7 GEO limit t pile walls. ses 7.3 and 7.5 from the book, the ffect of varying the soil properties,

nable Macros" in the opening dialog rmine the design depth.) readsheet, a dialog box asking fault Eurocode 7 partial factor anged values in the partial factors

BS8002 simplified - cantilvr

Exercise 7.3: CANTILEVER Sheet pile wall

BS8002 - Simplified approach

phi = gamma = h= M=

29.00 º 3 19.20 kN/m 4.00 m 1.20

Surcharge =

10.00 kPa

Min exc = Design phi =

Ka = Kp =

0.4 24.8

0.409 2.444

Enter values into fields above, then click Solve. FORCES: Pp =

847.95 kN

Pa = Pq =

425.70 kN 42.59 kN

R=

379.66 kN Design Re

LEVER ARM: lp =

2.00 m

la = lq =

3.47 m 5.21 m

MOMENTS: Mp =

1699.07 kNm

Ma =

1477.35 kNm

Mq =

221.72 kNm

CHECK (ΣM=0) Mp - Ma - Mq =

-0.0007

Page 3

BS8002 simplified - cantilvr

Page 4

BS8002 simplified - cantilvr

Page 5

BS8002 simplified - cantilvr

Page 6

BS8002 simplified - cantilvr

surcharge, q

m º

h Pq

Pa

min exc Pp

d0

d

R

ults:

d0 =

6.01 m

d = d0*1.2 =

7.21 m

Page 7

BS8002 simplified - cantilvr

Page 8

BS8002 simplified - cantilvr

Page 9

BS8002 simplified - cantilvr

-335544

Page 10

Eurocode 7, DA1, C1 - cantilvr

Exercise 7.3: CANTILEVER Sheet pile wall

phi = gamma = h= Surcharge =

Eurocode 7 - GEO limit state, Design App

29.00 º 3 19.20 kN/m

Min exc = Design phi = Design gamma =

4.00 m 0.00 kPa Ka = Kp =

Enter values into fields above, then click Solve. Actions:

(Rep.)

(Design)

FORCES (kN): Pp1 = Pp2 =

530.79

716.57 (unfav, permanent)

219.13

295.82 (unfav, permanent)

Pa1 =

256.78

346.65 (unfav, permanent)

Pa2 =

13.48

18.20 (unfav, permanent)

Pq1 =

0.00

0.00 (unfav, variable)

Pq2 =

0.00

0.00 (unfav, variable)

Design effect of actions (rotation of wall): LEVER ARM: lp1 = 1.46 m lp2 =

0.22 m

la1 =

2.93 m

la2 =

0.22 m

lq1 =

4.39 m

lq2 =

0.22 m

MOMENTS: Mp1 =

1046.19 kNm

Mp2 =

65.61 kNm

Ma1 =

1014.53 kNm

Ma2 =

4.07 kNm

Mq1 =

0.00 kNm

Mq2 =

0.00 kNm

CHECK (ΣM=0) & (ΣP=0) (ΣM=0) (ΣP=0)  ABS[(1)-(2)]

93.20 92.30

(1) (2)

0.905640

Page 11

Eurocode 7, DA1, C1 - cantilvr

oach 1 - Combination 1 Partial factors

0.4 m 29.0 º 3 19.2 kN/m

On unfavour able actions /action effects

Permanent actions Variable actions

γQ =

1.35 1.50

γG =

On material properties

0.347

Coef. of shearing re

γφ =

1.00

2.882

Weight density

γγ =

1.00

Design Results:

d0 = d=

Page 12

4.38 m  4.82 m

Eurocode 7, DA1, C1 - cantilvr

surcharge, q

h Pq1

Pa1

min exc Pp1 Pa2

d0

d

Pq2

Pp2

Page 13

Eurocode 7, DA1, C2 - cantilvr

Exercise 7.3: CANTILEVER Sheet pile wall

phi = gamma = h= Surcharge =

Eurocode 7 - GEO limit state, Design App

29.00 º 3 19.20 kN/m

Min exc = Design phi = Design gamma =

4.00 m 0.00 kPa Ka = Kp =

Enter values into fields above, then click Solve. Actions:

(Rep.)

(Design)

FORCES (kN): Pp1 = Pp2 =

447.29

447.29 (unfav, permanent)

322.34

322.34 (unfav, permanent)

Pa1 =

317.41

317.41 (unfav, permanent)

Pa2 =

30.18

30.18 (unfav, permanent)

Pq1 =

0.00

0.00 (unfav, variable)

Pq2 =

0.00

0.00 (unfav, variable)

Design effect of actions (rotation of wall): LEVER ARM: lp1 = 1.48 m lp2 =

0.39 m

la1 =

2.95 m

la2 =

0.40 m

lq1 =

4.42 m

lq2 =

0.38 m

MOMENTS: Mp1 =

661.99 kNm

Mp2 =

125.83 kNm

Ma1 =

935.31 kNm

Ma2 =

11.93 kNm

Mq1 =

0.00 kNm

Mq2 =

0.00 kNm

CHECK (ΣM=0) & (ΣP=0) (ΣM=0) (ΣP=0)  ABS[(1)-(2)]

-159.42 -162.28

(1) (2)

2.854153

Page 14

Eurocode 7, DA1, C2 - cantilvr

oach 1 - Combination 2 Partial factors

0.4 m 23.9 º 3 19.2 kN/m

On unfavour able actions /action effects

Permanent actions Variable actions

γG = γQ =

1.00 1.30

0.423

On material prop erties/resistances  γφ = Coef. of shearing re 1.25

2.363

Weight density

γγ =

Design Results:

d0 = d=

Page 15

4.44 m  5.21 m

1.00

Eurocode 7, DA1, C2 - cantilvr

surcharge, q

h Pq1

Pa1

min exc Pp1 Pa2

d0

d

Pq2

Pp2

Page 16

This spreadsheet has been downloaded from t he website that supports Smith's Elements of Soil Mechanics, 8th Edition Published by Blackwell Publishing, May 2006 ISBN: 1-4051-3370-8 Visit the website: http://sbe.napier.ac.uk/esm

Purchase the book: (Blackwell Publishing website)

Please note: This spreadsheet is an aid for learning and should really only be used in conjunction with the relevant section in the book. It is not intended for use in geotechnical design. Ian Smith , May 2006

http://sbe.napier.ac.uk/esm