Q 11.7 **Figure 11.22 Explanation:**This diagram illustrates a vertical cross-section of a retaining wall system interacting with sand under the influence of a surcharge and groundwater.- **Retaining Wall:** Shown on the left, it's labeled as having a "frictionless wall."- **Dimensions:** - The total height of the wall is labeled as $ H $. - The height from the top to the groundwater table is $ H_1 $.- **Surcharge:** Represented by vertical arrows at the top of the soil, labeled as "Surcharge = q." This indicates an additional load applied on the surface.- **Sand Layers:** - Above the groundwater table, the sand is characterized by $\gamma_1$, $\phi'_1$, and $c'_1 = 0$. - Below the groundwater table, the properties change to $\gamma_2$ (saturated unit weight), $\phi'_2$, and $c'_2 = 0$.- **Groundwater Table:** Illustrated with a horizontal line dividing the two sand layers, indicating the transition from unsaturated to saturated conditions.This diagram is used to understand the forces and pressures acting on the retaining wall due to soil and water interactions. ## Topic: Earth Pressure and Retaining Walls### Problem 11.6A 4-meter-high smooth vertical wall retains a granular backfill with a unit weight (γ) of 18.0 kN/m³ and an angle of internal friction (φ') of 33°. Using Rankine's earth pressure coefficients, determine the active force per unit length $ P_a $ for the following cases:a. **Horizontal Backfill**b. **Inclined Backfill with α = 10°**c. **Inclined Backfill with α = 20°**### Problem 11.7A retaining wall is shown in Figure 11.22. Determine the Rankine active force, $ P_a $, per unit length of the wall and the location of the resultant force for each of the following cases:a. **Given Conditions:**- Height of wall (H) = 12 ft- Height above wall (H₁) = 4 ft- Unit weight of soil for section 1 (γ₁) = 105 lb/ft³- Unit weight of soil for section 2 (γ₂) = 122 lb/ft³- Angle of internal friction for section 1 (φ'₁) = 30°- Angle of internal friction for section 2 (φ'₂) = 30°- Surcharge (q) = 0b. **Given Conditions:**- Height of wall (H) = 20 ft- Height above wall (H₁) = 6 ft- Unit weight of soil for section 1 (γ₁) = 110 lb/ft³- Unit weight of soil for section 2 (γ₂) = 126 lb/ft³- Angle of internal friction for section 1 (φ'₁) = 34°- Angle of internal friction for section 2 (φ'₂) = 34°- Surcharge (q) = 300 lb/ft²Note: Detailed calculations and graphical representations are needed to solve the above problems but are not included in the current text.**Disclaimer:** The material provided is intended for educational purposes and should not be used in practice without further validation. Proper interpretation of the formulas and coefficients is crucial in engineering applications.

Answered: Image /qna-images/answer/5d4859b5-2894-4046-87b0-70c45b06062f.jpg

11.7 A retaining wall is shown in Figure 11.22. Determine the Rankine active force, P, 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, y1 = 105 lb/ft', y2 = b. H = 20 ft, H, = 6 ft, y, = 110 lb/ft', 122 Ib/ft', oi = 30°, bi = 30°, q = 0 126 Ib/ft', of = 34°, $ = 34°, q = 300 lb/ft %3= Y2 = %3D

11.7 A retaining wall is shown in Figure 11.22. Determine the Rankine active force, P, 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, y1 = 105 lb/ft', y2 = b. H = 20 ft, H, = 6 ft, y, = 110 lb/ft', 122 Ib/ft', oi = 30°, bi = 30°, q = 0 126 Ib/ft', of = 34°, $ = 34°, q = 300 lb/ft %3= Y2 = %3D

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Determine the slope at C in terms of El for the frame shown. 80KN 3m 2m 21 Im 2m 20KN 30KN 2m 21 3m Fig.P17.13 No need to write /EL. Any method may be uied in solving this problem USE 2 DECIMAL PLACES
P1
Find the magnitude and angle (counterclockwise from the x-axis) that would put this in equilibrium 600 N Fig. P2.1 45° 1390.56 N 227.76 degrees ~ 228 degrees 30° 900 N
1. In figure 1, a 20kn cylinder is supported by a rod AB inclined at 20° with respect to the horizontal and rests against the uniform bar CD which weighs 10kn. Assume the pins A, B, C, D, and the rollers to be smooth and frictionless. Draw the FBD of the cylinder B, and find the compressive axial force acting on the rod AB. 2. In problem 1, find the normal force acting between the cylinder and the rod CD (specify if compression or tension) 3. In problem 1, draw the FBD of bar CD and determine the magnitude and direction of the force reaction at support C. 4. In problem 1, determine the magnitude and direction of the horizontal component of the force reaction at support D. 5. In problem 1, determine the magnitude and direction of the vertical component of the force reaction at support D. 6. In problem 1, determine the magnitude and direction of the resultant force reaction at support D. Figure 1:
PLEASE ANSWER THIS QUESTION ASAP!!!
Determine the moment of inertia of the shaded area about the x-axis. OK ←6" 16" Answer: Ix = i in.4
pls help me to find AB, AC and the Angle, TY!
1. In each case, establish a position vector from point A to point B. 1m 3 m -4 m B 3m
P.16.15. A thin-walled closed section beam of constant wall thickness t has the cross-section shown in Fig. P.16.15. Assuming that the direct stresses are distributed according to the basic theory of bending, calculate and sketch the shear flow distribution for a vertical shear force S, applied tangentially to the curved part of the beam. Answer: 901 = Sy(1.61 cos 0-0.80)/r Sy 7.3 912= (0.57s² - 1.14rs +0.33²)
50mm 125mm 125mm 50mm 250mm 4. Find the moment of inertia about the centroid, about both the hori- zontal and vertical axes.