Anchored sheet pile wall

Example 7.4Elements of Soil Mechanics, 8th EditionExample 7.4

The worksheets in this spreadsheet illustrate the use of the BS8002 and Eurocode 7 methods of design for anchored sheet pile walls.

Although the sheets contain the data for Example 7.4 from the book, the data may be changed so that the reader can see the effect of varying the soil properties, retained height etc.

Instructions:1. On opening the spreadsheet, the user must click "Enable Macros" in the opening dialog box. (The macros contain the algorithms used to determine the design depth.)

2. As the routines call data from the partial factors spreadsheet, a second dialog box asking whether to update the data will appear. To use the default Eurocode 7 partial factor values, click "Don't Update". If, however, you have changed values in the partial factors spreadsheet, click "Update".

3. Select appropriate sheet to enter data and view results.

Ian Smith, Sept 2005

BS8002 - anchoredExample 7.4: ANCHORED Sheet pile wallBS8002: 1994phi =30.00gamma =20.00kN/m3Min exc =0.4mh =5.00mDesign phi =25.7M =1.20a =1.00mSurcharge =10.00kPaKa =0.395Kp =2.531Enter values into fields above, then click Solve.FORCES:Pp =210.05kNPa =270.96kNPq =32.72kNDesign Results:LEVER ARM:lp =6.32md =2.88mla =4.52mDesign depth (d+min exc) =3.28mlq =3.14mMOMENTS:Mp =1327.67kNmMa =1224.91kNmMq =102.76kNmCHECK (M=0)Mp - Ma - Mq =0.0000-335544.32

&APage &PMobilisation Factor. Default is M=1.2Solve!surcharge, qhmin excdPaPpPqa

Eurocode 7, DA1, C1 - anchoredExample 7.4: ANCHORED Sheet pile wallEurocode 7 - GEO limit state, Design Approach 1 - Combination 1Partial factorsphi =30.00Min exc =0.4mgamma =20.00kN/m3Design phi =30.0On unfavourable actions/action effectsh =5.00mDesign gamma =20kN/m3Permanent actionsG =1.35Variable actionsQ =1.50a =1.00mSurcharge =0.00kPaKa =0.333On material properties/resistancesKp =3.000Coef. of shearing resistance =1.00Weight density =1.00Enter values into fields above, then click Solve.Actions:(Rep.)(Design)FORCES (kN):Pp =127.85172.59Pa =185.72250.72Pq =0.000.00Design Results:Design effect of actions (rotation of wall):d =2.06mLEVER ARM:Design depth (d+min exc) =2.46mlp =5.78mla =3.98mlq =2.73mMOMENTS:Mp =996.94kNmMa =996.94kNmMq =0.00kNmCHECK (M=0)Mp - Ma - Mq =0.0001-335544.32

&APage &PSolve!surcharge, qhmin excdPaPpPqa

Eurocode 7, DA1, C2 - anchoredExample 7.4: ANCHORED Sheet pile wallEurocode 7 - GEO limit state, Design Approach 1 - Combination 2Partial factorsphi =30.00Min exc =0.4mgamma =20.00kN/m3Design phi =24.8On unfavourable actions/action effectsh =5.00mDesign gamma =20kN/m3Permanent actionsG =1.00Variable actionsQ =1.30a =1.00mSurcharge =0.00kPaKa =0.409On material properties/resistancesKp =2.444Coef. of shearing resistance =1.25Weight density =1.00Enter values into fields above, then click Solve.Actions:(Rep.)(Design)FORCES (kN):Pp =199.16199.16Pa =278.77278.77Pq =0.000.00Design Results:Design effect of actions (rotation of wall):d =2.85mLEVER ARM:Design depth (d+min exc) =3.25mlp =6.30mla =4.50mlq =3.13mMOMENTS:Mp =1255.30kNmMa =1255.30kNmMq =0.00kNmCHECK (M=0)Mp - Ma - Mq =0.0000-335544.32

&APage &PSolve!surcharge, qhmin excdPaPpPqa

About...This spreadsheet has been downloaded from the website that supportsSmith's Elements of Soil Mechanics, 8th EditionPublished by Blackwell Publishing, May 2006ISBN: 1-4051-3370-8Visit the website:http://sbe.napier.ac.uk/esmPurchase the book:(Blackwell Publishing website)http://sbe.napier.ac.uk/esm

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 2006http://sbe.napier.ac.uk/esm