Archive | Rankine’s Theory

Rankine’s Theory of Active Earth Pressure | Soil

Rankine (1857) considered the equilibrium of a soil element at any depth (h) in the backfill behind a retaining wall and determined the active earth pressure. Rankine assumed that the soil element is subjected to only two types of stresses: i. Vertical stress (σz) due to the weight of the soil above the element. ii. Lateral earth pressure (pa). Dry [...]

By Trishna B|2018-02-16T16:51:57+00:00February 16, 2018|Rankine's Theory|Comments Off

Rankine’s Theory of Passive Earth Pressure | Soil

In the passive case, the retaining wall moves toward the soil, causing compression of the soil and increasing the lateral earth pressure. When the soil reaches the state of plastic equilibrium, the Mohr's circle touches the Coulomb's failure envelope. Thus, in the passive case, the vertical stress is more than the horizontal stress, since both the stresses are considered as [...]

By Trishna B|2018-02-16T16:51:56+00:00February 16, 2018|Rankine's Theory|Comments Off