A retaining wall 6m high with a vertical back face retains homogenous lateritic soil. The saturated unit weight of the lateritic soil is 19kN/m². Laboratory tests showed that the undrained shear strength Cu of the lateritic soil is 15kN/m³, p=25 i. Do the necessary calculations and draw the variations of Rankine's passive pressure with the wall. ii. Determine the total passive force. iii. Find the location of the resultant force A 7meter retaining wall which is back filled with sand is restrained from moving. The unit weight of the sand is 18kN/m³. p=27°. i) What will be the lateral force per unit length of the wall? ii) Find the location of the resultant force.

A retaining wall 6m high with a vertical back face retains homogenous lateritic soil. The saturated unit weight of the lateritic soil is 19kN/m². Laboratory tests showed that the undrained shear strength Cu of the lateritic soil is 15kN/m³, p=25 i. Do the necessary calculations and draw the variations of Rankine's passive pressure with the wall. ii. Determine the total passive force. iii. Find the location of the resultant force A 7meter retaining wall which is back filled with sand is restrained from moving. The unit weight of the sand is 18kN/m³. p=27°. i) What will be the lateral force per unit length of the wall? ii) Find the location of the resultant force.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.

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3.
a. A retaining wall 6m high with a vertical back face retains homogenous lateritic soil.
The saturated unit weight of the lateritic soil is 19kN/m². Laboratory tests showed that
the undrained shear strength Cu of the lateritic soil is 15KN/m³, 0=25
i. Do the necessary calculations and draw the variations of Rankine's passive
pressure with the wall.
ii. Determine the total passive force.
iii. Find the location of the resultant force
b. A 7meter retaining wall which is back filled with sand is restrained from moving. The
unit weight of the sand is 18kN/m³. 0=27°.
i) What will be the lateral force per unit length of the wall?
ii) Find the location of the resultant force.

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Y=15kN/m³ 몰 Y = 12.5 kN/m³ 0 p = 150 kPa e.= 0.95 C₁ = 0.62 Cv=0.135 Y=27.5 kN/m³ sand 9m Clay Bedrock 25,000 KN ↑ 3m 18m ↑ 5m ↓ A) What is the induced stress so (in kPa) at the midpoint of the clay layer from the point load? B) What is the change of void ratio, se, in the clay layer because of the point load. c) Calculate the settlement (in the nearest cm) at the clay layer because of the point load. Use the one layer approach. D) while the one-layer approach is not accurate to represent the distributed stress from the point load, how many layers would be proper?
The following figure shows a section of an anchored retaining wall embedded into a saturated stiff clay layer. The sand has a unit weight of = 18 kN/m³, c' = 0 kPa and o' = 34º. The clay has a unit weight of = 20 kN/m³, c₁ = 80 kPa and = 0°. A uniform pressure of 40 kPa is applied on the soil surface. The short term stability of the wall is considered in an undrained analysis. Use the Rankin's theory of lateral earth pressure to determine the active and passive horizontal stresses. You should apply the requirements of AS 4678 and the partial factors of safety method in estimation of soil pressures. Assume the soil is in-situ and use a structural classification factor of ₁ = 1. 3m 1m Water table 1.5m 40 kPa Not to Scale Sand Clay Ta
A level ground surface exists in an area where soil in the underlying stratum has a wet unit weight of 19 kN/m3. The vertical pressure at any depth represents the major principal stress. The vertical pressure (stress) is the product of the soil unit weight and depth. The lateral pressure at a corresponding depth is 0.45 times the vertical pressure and represents the minor principal stress. (a) Determine the principal stresses acting at a depth 4 m below the surface, and draw the Mohr’s circle for the condition. (b) What is the maximum shear stress acting at this depth?
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