9.4 Refer to Figure P9.4, for which L, = 2.4 m, L2 = 4.6 m, y = 15.7 kN/m', Yat = 17.3 kN/m , and o' = 30°, and c = 29 kN/m?. a. What is the theoretical depth of embedment, D? b. Increase D by 40%. What length of sheet piles is needed? c. Determine the theoretical maximum moment in the sheet pile.
9.4 Refer to Figure P9.4, for which L, = 2.4 m, L2 = 4.6 m, y = 15.7 kN/m', Yat = 17.3 kN/m , and o' = 30°, and c = 29 kN/m?. a. What is the theoretical depth of embedment, D? b. Increase D by 40%. What length of sheet piles is needed? c. Determine the theoretical maximum moment in the sheet pile.
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls
Section: Chapter Questions
Problem 15.22P
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I am looking for the solution for 9.4 and 9.6, thank you
Transcribed Image Text:9.1 Figure P9.1 shows a cantilever sheet pile wall penetrating a granular soil. Here,
L = 4 m, L2 = 8 m, y = 16.1 kN/m', Ysa = 18.2 kN/m, and d' = 32°.
a. What is the theoretical depth of embedment, D?
b. For a 30% increase in D, what should be the total length of the sheet piles?
c. Determine the theoretical maximum moment of the sheet pile.
9.2 Redo Problem 9.1 with the following: L, = 3 m, L2 = 6 m, y = 17.3 kN/m,
Yal = 19.4 kN/m³ , and o' = 30°.
9.3 Refer to Figure 9.10. Given: L = 3 m, y = 16.7 kN/m², and d' = 30°. Calculate
the theoretical depth of penetration, D, and the maximum moment.
9.4 Refer to Figure P9.4, for which L = 2.4 m, L2 = 4.6 m, y = 15.7 kN/m ,
Yai = 17.3 kN/m² , and d' = 30°, and c = 29 kN/m?.
a. What is the theoretical depth of embedment, D?
b. Increase D by 40%. What length of sheet piles is needed?
c. Determine the theoretical maximum moment in the sheet pile.
9.5 Refer to Figure 9.14. Given: L = 4 m; for sand, y = 16 kN/m; o' = 35°; and,
for clay, Ysa = 19.2 kN/m and c = 45 kN/m?. Determine the theoretical value
of D and the maximum moment.
9.6 An anchored sheet pile bulkhead is shown in Figure P9.6. Let L, = 4 m,
L, = 9 m, , = 2 m, y = 17 kN/m², Y = 19 kN/m , and o' = 34°.
a. Calculate the theoretical value of the depth of embedment, D.
b. Draw the pressure distribution diagram.
c. Determine the anchor force per unit length of the wall.
Use the free earth-support method.
Transcribed Image Text:Sand
Sand
Water table
Water table
Sand
Sand
Ysat
Yat
c =0
c'= 0
Dredge line
Sand
Ysat
c'= 0
D
D
Clay
Figure P9.1
d'=0
Figure P9.4
Sand
Sand
L
P,
Sand
Clay
Figure 9.10 Sheet piling penetrating
a sandy soil in the abscnce of the
Ysal
d' =0
water table
L4
Figure 9.14 Sheet-pile wall penetrating clay
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Step 1 Introduction
VIEWStep 2 Data Given
VIEWStep 3 Calculation of intensity of active earth pressure
VIEWStep 4 Calculate effective unit weight of soil
VIEWStep 5 Calculate depth of embedment in clay soil
VIEWStep 6 Calculation of length of sheet pile
VIEWStep 7 Calculation of theoretical maximum moment in sheet pile
VIEWStep 8 Conclusion
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