Test: Boussinesq's Equations - Civil Engineering (CE) MCQ

Test: Boussinesq's Equations - Civil Engineering (CE) MCQ

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10 Questions MCQ Test Soil Mechanics - Test: Boussinesq's Equations

Test: Boussinesq's Equations for Civil Engineering (CE) 2024 is part of Soil Mechanics preparation. The Test: Boussinesq's Equations questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Boussinesq's Equations MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Boussinesq's Equations below.
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Test: Boussinesq's Equations - Question 1

The problems due to stress distribution in soils due to a concentrated load was studied by _____________

Detailed Solution for Test: Boussinesq's Equations - Question 1

Boussinesq in 1885 studied and solved the problems of stress distribution in soils due to a concentrated loads acting at the ground surface. Darcy gave the law of flow of water through soils. The stress function was introduced by G.B Airy in 1862.

Test: Boussinesq's Equations - Question 2

The assumption of Boussinesq equation is that the soil is ______________

Detailed Solution for Test: Boussinesq's Equations - Question 2

Boussinesq solved the problems of stress distribution in soils due to a concentrated loads acting at the ground surface. The assumptions made are based on theory of elasticity. Therefore, the soil is considered to be elastic.

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Test: Boussinesq's Equations - Question 3

The assumption of Boussinesq equation is that the soil is ______________

Detailed Solution for Test: Boussinesq's Equations - Question 3

Semi-infinite condition is when one of the dimension extends to infinity. If XY pane is considered to be ground surface and the z-axis as depth, then this condition is known as semi-infinite.

Test: Boussinesq's Equations - Question 4

The Boussinesq equation representing the vertical stress is ___________

Detailed Solution for Test: Boussinesq's Equations - Question 4

Boussinesq showed that the polar radial stress is given by,

Boussinesq’s vertical stress σz is given by,
σz = σRcos2 β
where, σz is the vertical stress
Q is the point load acting at the ground surface
r is the radial horizontal distance
z is the vertical distance.

Test: Boussinesq's Equations - Question 5

The Boussinesq influence factor is given by ____________

Detailed Solution for Test: Boussinesq's Equations - Question 5

The Boussinesq influence factor is given by,  where the KB = Boussinesq influence factor which is a function of r/z ratio which is a dimensionless factor.

Test: Boussinesq's Equations - Question 6

The assumption made by Boussinesq in the solutions is by the ____________

Detailed Solution for Test: Boussinesq's Equations - Question 6

Boussinesq in 1885 studied and solved the problems of stress distribution in soils due to a concentrated loads acting at the ground surface, by assuming a suitable stress function. The assumptions made are based on theory of elasticity.

Test: Boussinesq's Equations - Question 7

The assumption of Boussinesq equation is that the soil is ______________

Detailed Solution for Test: Boussinesq's Equations - Question 7

Boussinesq solved the problems of stress distribution in soils due to a concentrated loads acting at the ground surface. The assumptions made are based on theory of elasticity. Therefore, the soil is considered to be elastic and of homogeneous nature.

Test: Boussinesq's Equations - Question 8

The Boussinesq equation representing the polar radial stress is ___________

Detailed Solution for Test: Boussinesq's Equations - Question 8

Boussinesq showed that the polar radial stress is given by,  where σR is the polar radial stress

R is the polar radial coordinate=√(r2 + z2).

Test: Boussinesq's Equations - Question 9

The Boussinesq equation representing the tangential stress is ___________

Detailed Solution for Test: Boussinesq's Equations - Question 9

Boussinesq showed that the polar radial stress is given by,

Boussinesq’s tangential stress σz is given by,

where, τrz is the tangential stress
Q is the point load acting at the ground surface
r is the radial horizontal distance
z is the vertical distance.

Test: Boussinesq's Equations - Question 10

The intensities of pressure below a point load where r = 0 on axis of loading is ____________

Detailed Solution for Test: Boussinesq's Equations - Question 10

Boussinesq’s vertical stress σz is given by,

Substituting r = 0,
We get,

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Soil Mechanics

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