Rankine's Theory: Earth Pressure

# Rankine's Theory: Earth Pressure Video Lecture | Soil Mechanics - Civil Engineering (CE)

## Soil Mechanics

30 videos|76 docs|74 tests

## FAQs on Rankine's Theory: Earth Pressure Video Lecture - Soil Mechanics - Civil Engineering (CE)

 1. What is Rankine's theory in civil engineering?
Ans. Rankine's theory is a principle in civil engineering that is used to determine the lateral earth pressure on retaining walls and other structures. It provides a method to calculate the maximum pressure exerted by the soil against the wall, considering various factors such as soil properties, wall geometry, and the presence of water.
 2. How does Rankine's theory work in determining earth pressure?
Ans. Rankine's theory considers the soil as a cohesive-frictional material. It assumes that the soil is composed of two zones: an active zone and a passive zone. The active zone is located behind the retaining wall and is where the soil is expected to fail. The passive zone is located in front of the wall and resists the lateral pressure exerted by the soil. By analyzing the equilibrium conditions and the properties of the soil, Rankine's theory provides equations to calculate the active and passive earth pressures.
 3. What factors are considered in Rankine's theory for determining earth pressure?
Ans. Rankine's theory takes into account several factors for determining earth pressure. These factors include the angle of internal friction of the soil, the angle of wall friction, the cohesion of the soil, the wall geometry (such as the inclination angle), the water table level, and the presence of surcharge loads. These factors are used in the equations derived from Rankine's theory to calculate the active and passive earth pressures.
 4. Is Rankine's theory applicable to all types of soil?
Ans. Rankine's theory is applicable to cohesive-frictional soils, which include a wide range of soil types such as silts, clays, and sandy soils. However, it may not provide accurate results for soils that exhibit significant changes in strength with depth or for soils that are highly compressible. In such cases, other theories or more advanced methods, such as the Coulomb's theory or finite element analysis, may be used to determine the earth pressure more accurately.
 5. What are the limitations of Rankine's theory in civil engineering?
Ans. While Rankine's theory is widely used in civil engineering, it has certain limitations. It assumes that the soil is homogeneous and uniform in strength, which may not always be the case in practical scenarios. It also neglects the effects of soil arching, soil consolidation, and time-dependent behavior of the soil. Additionally, Rankine's theory does not consider the possibility of soil failure in tension, which can occur in certain conditions. Therefore, it is important to consider these limitations and use appropriate judgment when applying Rankine's theory in engineering design.

## Soil Mechanics

30 videos|76 docs|74 tests

### Up next

 Explore Courses for Civil Engineering (CE) exam
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

,

;