13.22 Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75 m,and the unit weight of the sand backfill is 18.7 kN/m². Using Coulomb's equation,calculate the active force, Pq. on the wall for the following values of the angle ofwall friction. Also, comment on the direction and location of the resultant.a. 8' = 14°b. 8' = 21°+Sandy = 18.7 kN/m³c' = 0d' = 34°e = 12°8' (wall friction)e = 10°H= 9.75 mFigure 13.38© Cengage Learning 2014

Solution: Given Data: H=9.75 mγ=18.7 kN/m3c'=0φ'=34° (1)…

Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75 m, and the unit weight of the sand backfill is 18.7 kN/m³. Using Coulomb’s equation, calculate the active force, Pa. on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant. a. 8' = 14° b. 8' = 21° Sand y = 18.7 kN/m³ e = 10° c' =0 9.75 m d' = 34° e = 12° 8' (wall friction) ure 13.38 ©Cengage Learning 2014

Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75 m, and the unit weight of the sand backfill is 18.7 kN/m³. Using Coulomb’s equation, calculate the active force, Pa. on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant. a. 8' = 14° b. 8' = 21° Sand y = 18.7 kN/m³ e = 10° c' =0 9.75 m d' = 34° e = 12° 8' (wall friction) ure 13.38 ©Cengage Learning 2014

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter12: Lateral Earth Pressure

Section: Chapter Questions

Problem 12.5P

See similar textbooks

Similar questions

13.22 Consider the retaining wall shown in Figure 13.38. The height of the wall is 9.75m. and the unit weight of the sand backfill is 18.7kN/m3. Using Coulomb's equation, calculate the active force, Pa, on the wall for the following values of the angle of wall friction. Also, comment on the direction and location of the resultant.
.A 6 m vertical retaining wall is supporting a horizontal backfill of a normally consolidated soil having a unit weight of 18 kN/m3 and a friction angle of 35 degrees. Cohesion of soil is zero. (Use four decimal places) A. Determine the at rest force per unit length of the wall. B. Determine the active force develop at the wall. C. Calculate the passive force acting on the wall.
Determine the lateral earth pressure force on the wall (6.0 m height shown in the figure. Draw the stress distribution and locate the location of the resultant force. Sandy soil kN Ye = 20 O = 36.0°
Refer to Figure 12.3a. Given: H = 12 ft, q = 0, γ = 108 lb/ft3, c' = 0, and Φ' = 30º. Determine the at-rest lateral earth force per foot length of the wall. Also, find the location of the resultant. Use Eq. (12.4) and OCR = 2.
Calculate the active and passive earth pressures AND. determine the distance at which the net active and passive force will acting on the retaining wall Ya=19 kN /m3 - 34 c=3kp 2m 6=34 %3D Vd = 17.54kN/m3 8=32"; ċ=o %3D 1.5m %3D = 21. BkN/m3 V sat 8= 31; c'= o %3D 1.5m %3D Ysat = 22.lkN/m3 5 m 8=30;cio
1. Determine the lateral force Pae for a proposed retaining wall 6 m high for a horizontal backfill and whose uniform weight is 16 KN/cu m. The back of wall is inclined 5° w.r.t. the vertical. Consider 8 = 15°, kv = 0 and kh = 0.10. Locate the position, z, of Pae above the base. Use Coulomb's active earth pressure coefficient to determine Pa. Refer to the formulas in lesson Module 8. [Additional data: angle of internal friction Ø=30°]
3. Calculate and draw to scale the earth pressures along the back of the retaining wall in the Figure 1. Then calculate the over-turning moment around point o . p = 1800 kg/m3 C = 0 kPa 1.5m P = 22 p = 1600 kg/m³ c =15 kPa O = 18 1.5m 0.5m Point O 0.5m 1m Figure 1
Consider the wall shown below. Dimensions are in meters. sand O' = 30 0.5 0.5 > 1 K Determine the active force acting on the wall. Circle your answer. b. а. Determine the FS for sliding. Circle your answer. Determine the FS for overturning. Circle your answer. d. Determine the FS for overturning if a row of tiebacks is placed 2 meters below the backfill's ground surface. Tieback spacing is 2 meters. The capacity of each tieback is 50 kN. Circle your answer. C.
Q5: In the case of the retaining wall depicted below. Calculate the lateral earth fore at rest per unit length of the wall. Determine the location of the resulting force as well as its magnitude. [25] y = 16.5 kN/m $ = 30 C = 0 Ground v Water table 2.5m Yur = 19.3 kN/m 0 = 30 C = 0 2.5m Good Luck
12.3 Refer to Figure 12.12a. Given: H = 4 m, y = 16.5 kN/m³, ' = 30°, c' = 0, and B = 85°. Determine the Coulomb's active force per meter length of the wall and the location and direction of the resultant for the following cases: a. a 10° and 8' = 20° b. a = 20° and 8' = 15°
11.7 A retaining wall is shown in Figure 11.22. Determine the Rankine active force, Pa, per unit length of the wall and the location of the resultant for each of the following cases: a. H = 12 ft, H, = 4 ft, y, = 105 lb/ft, y= b. H = 20 ft, H, = 6 ft, y, = 110 lb/ft, y = 126 lb/ft', oi = 34°, d; = 34°, q = 300 lb/ft 122 Ib/ft', i = 30°, = 30°, q = 0 6 Cengage Learning. All Riphts Reserved. May not be copied, scanned, or duplicated, in whole or in part Due to elsctronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). s deemed that any suppressed content does nol maierially affect the overall learning exnerience Ceneaec ernin neerves the right to mrmove additional.contant
Use Eq. (12.3), Figure P12.2, and the following values to determine the at-rest lateral earth force per unit length of the wall. Also find the location of the resultant. H = 5 m, H1 = 2 m, H2 = 3 m, γ = 15.5 kN/m3, γsat = 18.5 kN/m3, Φ' = 34º, c' = 0, q = 20 kN/m2, and OCR = 1.