Experimental analysis of earth pressure against rigid retaining walls under translation mode

Khosravi, Mohammad Hossein; Pipatpongsa, Thirapong; Takemura, Jiro

doi:10.1680/geot.12.p.021

Cited by 92 publications

(37 citation statements)

References 22 publications

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“…3(a)). For further comparison, results are compared with experimental data from Khosravi et al (2013) (Fig. 3(b)).…”

Section: Methodsmentioning

confidence: 99%

“…However, there are numerous experimental studies demonstrating that the distribution of earth pressures does not follow a triangular distribution when soil-wall interface friction is present, especially for battered walls, but instead exhibits a curvilinear shape attributed to the phenomenon called 'soil arching' (e.g. Tsagareli, 1965;Matsuo et al, 1978;Fang & Ishibashi, 1986;Khosravi et al, 2013). Terzaghi (1943) described arching in soils as a ubiquitous phenomenon in soil mechanics, attributing it to a transfer of shear stresses between yielding soil and adjacent stable materials, while warning of its ephemeral nature.…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, numerous studies have attributed observed curvilinear earth pressure distributions to arching (e.g. Harrop-Williams, 1989;Wang, 2000;Khosravi et al, 2013). Paik & Salgado (2003) developed closed-form equations for earth pressure by employing a planar shear surface manifesting at an angle of 45°+ ϕ/2 from the horizontal.…”

Section: Introductionmentioning

confidence: 99%

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Active earth pressures from a log-spiral slip surface with arching effects

Xie

Leshchinsky

2016

Géotechnique Letters

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The distribution of active earth pressures behind retaining structures is typically inferred from simplified Rankine or Coulomb analyses, both of which are triangular in shape and assume a planar slip surface. However, various experiments and numerical models have demonstrated an earth pressure distribution that is non-linear in shape, typically attributed to a phenomenon called 'soil arching'. Existing analytical solutions have typically evaluated arching with planar slip surfaces; however, slip surfaces that form behind retaining structures are often curvilinear, tending to follow a log-spiral shape, particularly when considering wall batter or interface friction between the backfill and wall. In this letter, the arching effect is considered using a log-spiral failure mechanism that has been developed by deriving a first-order differential equation and subsequently solved using a numerical approach. A series of charts are presented accounting for varying soil strengths, interface friction and wall batters.

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“…3(a)). For further comparison, results are compared with experimental data from Khosravi et al (2013) (Fig. 3(b)).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Active earth pressures from a log-spiral slip surface with arching effects

Xie

Leshchinsky

2016

Géotechnique Letters

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“…e calculation of the earth pressure on the retaining wall is essential for the economical and safe design of the retaining wall. e distribution of the active lateral earth pressure on the retaining wall may be affected by the movement mode of the wall, the backfilling property [4], and the geometric layout of the backfill. is paper focuses on the active earth pressure on a horizontally translating rigid vertical wall supporting a cohesionless backfill.…”

Section: Introductionmentioning

confidence: 99%

“…Both of them are based on a linear slip surface, and the obtained earth pressure distribution is also linear. However, due to the existence of wall-backfill friction, the slip surface is generally curved [7][8][9] and the lateral pressure distribution on the back of the retaining wall is curved as well [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Calculation of Active Earth Pressure for Narrow Backfill with a Curved Slip Surface

Wang

2019

Advances in Civil Engineering

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A method was proposed to calculate the earth pressure from a cohesionless backfill with a high aspect ratio (ratio of height to width of retaining wall). An exponential equation of slip surface was proposed first. e proposed nonlinear slip surface equation can be obtained once the width and height of the backfill as well as the internal friction angle of the backfill were given. e failure surface from the proposed formula agreed well with the experimental slip surface. en, the earth pressure was calculated using a simplified equilibrium equation based on the proposed slip surface. It is assumed that the minor principal stress of the backfill near the wall and at its corresponding slip surface where the depth is the same is the same. us, based on the vertical force balance of the horizontal backfill strip, assuming the wall-soil interface and the slip surface is in the limit equilibrium state, defined by the Mohr-Coulomb criterion, the differential equilibrium equation was obtained and numerically solved. e calculated results agreed well with the test data from the published literature.

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An improved method of active earth pressure on rigid retaining wall under movement modes considering arching effects

Fan

Zheng

Peng

et al. 2022

Num Anal Meth Geomechanics

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Both wall movement mode and soil arching are important to the active earth pressure on rigid retaining wall, but the method of active earth pressure under wall movement modes considering arching effects is yet to be studied. A series of minor principal stress trajectories described by the power function with the exponent b is assumed to analyze the soil arching effect using the equivalent friction coefficient between adjacent soil layers. The horizontal Winkler elastic foundation beam model induced by wall movement modes is presented. Then based on the trajectories and wall movement modes the horizontal flat-element method of active earth pressure on rigid retaining wall is improved and verified.The active earth pressures on the retaining wall under translation (T), rotation about top (RT) mode and rotation about bottom (RB) mode calculated by the improved method are in a better agreement with the experimental results than other analytical studies. The application point of the resultant active earth pressure on retaining wall increases from 0.25 H to 0.49 H with varies of wall movement modes considering soil arching effect. The larger equivalent friction coefficient is, the more notable soil arching effect is. The most notable soil arching effect is described by the approximate linear minor principal stress trajectory whose power function with exponent of b approaches zero from positive direction. The active earth pressure on retaining wall under RT mode considering the most notable soil arching effect is simplified and suggested for the engineering practice.

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Experimental analysis of earth pressure against rigid retaining walls under translation mode

Cited by 92 publications

References 22 publications

Active earth pressures from a log-spiral slip surface with arching effects

Active earth pressures from a log-spiral slip surface with arching effects

Calculation of Active Earth Pressure for Narrow Backfill with a Curved Slip Surface

An improved method of active earth pressure on rigid retaining wall under movement modes considering arching effects

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