Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 14, Problem 14.10P
(a)
To determine
Draw the variation of Rankine’s active pressure on the wall with depth.
(b)
To determine
Find the depth up to which, a tensile crack can occur.
(c)
To determine
Find the total active force per unit length of the wall before the tensile crack occurs.
(d)
To determine
Find the total active force per unit length of the wall after the tensile crack occurs.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A retaining wall supports a horizontal backfill that is composed of two types of soil. The first layer is 4.47m high. It has a unit weight of 16.92kN/m3. The second layer is 5.76m and has a unit weight of18.51 kn/m3. If the angle of friction for both layers is 38 degrees, determine the total active force (kN) acting on the retaining wall per unit. Use stored value. Asnwer on 5 decimal places.
i need the answer quickly
2. Figure 2 shows a non-yielding vertical wall retaining a sandy backfill underlain by clay.
Determine the magnitude of the resultant at-rest force per unit length on the wallI, Pa
Sand
y= 18 kN/m
d'= 34", e 0
OCR = 2
4m
G.W.T
2 m
Clay
Yu=19 kN/m
LL = 36, PL = 14. OCR = 3
Figure 2
Chapter 14 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Knowledge Booster
Similar questions
- Considering that the horizontal thrust from the back of a 5.5 m wide brick wall to the 1 m deep part of the wall is H = 55 kN a) Find the greatest stress in the base when b = 2 m.b) Find the width b so that there is a shrinkage zone at the base.(Note: unit weight of brick wall ỿ = 24 kN / m3 ) Answer: ϭmax=0,30 Mpa, b=2,23 marrow_forwardAnswer d and earrow_forwardThanks for your workarrow_forward
- Answer is 4 minutearrow_forwardA cantilever retaining wall supports 2 layers of soil and surcharge as shown below. The layers have these properties: Layer 1: 1.8m thick. γ = 17.4 kN/m3 and ϕ = 22 degrees Layer 2: 4.2m thick. γsat = 18.1 kN/m3 and ϕ = 30 degrees The angle of friction between the base and soil is 42 degrees. Unit weight of concrete is 23.6 kN/m3 What is the design moment (kNm / m) at the bottom of the stem? None of the choices 819.98 478.88 363.00 299.30 Please answer this asap. For upvote. Thank you very mucharrow_forwardShow complete solutionarrow_forward
- A retaining wall supports a horizontal backfill that is composed of two types of soil. The first layer is 4.74 meters high. It has a unit weight of 17.25 kN/m3. The second layer is 6.6 meters and has a unit weight of 18.4 kN/m3. If the angle of friction for both layers is 32°, determine the total active force (kN) acting on the retaining wall per unit width. Use stored value. Answer in 5 decimal places.arrow_forward3. Compute the resultant lateral force for the soil-wall system shown in Figure 3. You may ignore tensile cracks. Use • A- Coloumb • B - Rankine 0=30°, y=20kN/m³ 4m Ground water table 7m c=50KN/m², p=10°, y=18KN/m³ 0=25°, y=20KN/m³ 8 m Gravity wall Figure 3arrow_forwardA fixed retaining wall is backfilled to height of 10m with dry cohesionless sand. The resulting backfill has a unit weight of 18kN/m³ and a drained angle of internal friction of 36°. a. Prior to backfilling, what is the horizontal stress (kPa) at a depth of 10m below the final elevation of the finished backfill? b. Assuming that the overconsolidation ratio of the soil in the backfill at a depth 10m below the surface is equal to 2.0, what is the corresponding effective horizontal stress at a depth of 10m below the top of the backfill? c. If a 200kN/m² surcharge is then applied to the surface of the backfill in the previous item (b), what will be the effective horizontals stress (kPa) at a depth of 10m below the top of the backfill? d. If the surcharge in the previous item (c) is reduced to 25kPa, what will be the effective horizontal stress at a depth of 10m below the top of the backfill? e. If the surcharge in the previous item (d) is increased to 100kPa, what will be the effective…arrow_forward
- A smooth unyielding wall retains a normally consolidated clay with no lateral movement of soil, that is at rest condition is assumed. a) Compute the coefficient of earth pressure at rest if the clay has a plasticity index of 7.8%. (Answer: 0.455) b) Compute the location of the resultant force. (Answer: 19.81 kN) c) Compute the total lateral force acting on the wall. (Answer: 1.20)arrow_forwardA retaining wall with a smooth vertical back retains a purely cohesive fill. Height of wall is 12 m. Unit weight of fill is 20 kN/m3, cohesion is 1.5 N/cm2. Assume tension cracks are developed. Mark the correct statement(s) about earth pressure. A Active thrust acting on wall is 1102.50 kN/m. Correct Option Depth of active thrust acting on wall is 6 m. C Active thrust acting on wall is 112.39 tonne/m. Correct Option Depth of active thrust acting on wall is 3.5 m from base. Correct Option Barrow_forwardA 7 m high retaining wall retains two sides of soil profile as shown in Figure Q1(c). A uniform surcharge load, q = 150 kPa is acting on the top of two layers soil. Use unit weight of water= 10kN/m3 i) Determine the Ka for the first soil layer (3.0 m), Ka for the second soil layer (4.0 m) and Kp for the first soil layer (4.0 m) ii) Determine the effective stress at the point A in Figure Q1(c) iii) Determine the effective stress at the point B in Figure Q1(c)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781305081550Author:Braja M. DasPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781305081550
Author:Braja M. Das
Publisher:Cengage Learning