Abstract
In field, the earth pressure on a retaining wall is the common effect of kinds of factors. To figure out how key factors act, it has taken into account the arching effects together with the contribution from the mode of displacement of a wall to calculate earth pressure in the proposed method. Based on Mohr circle, a conversion factor is introduced to determine the shear stresses between artificial slices in soil mass. In the light of this basis, a modified differential slices solution is presented for calculation of active earth pressure on a retaining wall. Comparisons show that the result of proposed method is identical to observations from model tests in prediction of lateral pressures for walls rotating about the base.
Highlights
Prediction of earth pressure is an important subject of research for design of retaining structures in prone rupture region
It is common in practice that movements of retaining wall are considered in terms of translation (T), rotation about base (RB), and rotation about top (RT)
Motivated by the above literature review, this paper focuses on an analytical method for the earth pressure distribution on a rigid wall rotating about base (RB) with consideration of the arching effects
Summary
Prediction of earth pressure is an important subject of research for design of retaining structures in prone rupture region. Terzaghi [21] used trap door tests to explain how pressure transferred from yielding parts of a soil mass to adjoined stationary; nonyielding parts led to the formation of an arching zone Following this pioneering study, numerous works have been carried out to investigate the arching effect in various engineering problems. Motivated by the above literature review, this paper focuses on an analytical method for the earth pressure distribution on a rigid wall rotating about base (RB) with consideration of the arching effects. It infers suitable lateral earth coefficients K assuming that the arch forms a part of circular arc in the soil. Comparisons are made between the prediction of proposed method and existing experiments results
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