Sliding stability analysis of gravity retaining walls using the pseudo-dynamic method

Baziar, Mohammad Hassan; Shahnazari, Habib; Moghadam, Masoud Rabeti

doi:10.1680/geng.10.00036

Cited by 8 publications

(10 citation statements)

References 11 publications

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“…The values reported by Pain et al [52] are higher than the values of Baziar et al [41] for the given set of input parameters. This is attributed to the fact that the effect of amplification of acceleration is not considered by Baziar et al [41]. This difference may change depending on the variation in input parameters.…”

Section: Resultscontrasting

confidence: 59%

“…This difference may change depending on the variation in input parameters. Figure 4 shows the comparison of the combined dynamic factor with the values reported by Richards and Elms [21], Baziar et al [41], and Pain et al [52]. Pain et al [52] report that the wall inertia factor computed using the modified pseudo-dynamic method are lesser than those obtained using the pseudo-static method of Richards and Elms [21] and pseudo-dynamic method of Baziar et al [41].…”

Section: Resultsmentioning

confidence: 89%

mentioning

confidence: 99%

“…Using this methodology, the sliding stability of a retaining wall is studied by Baziar et al [41]. Baziar et al [41] proposed a combined dynamic factor that considers the effect of seismic active thrust and inertia forces in the wall. The safe weight of the retaining wall under the seismic condition can be obtained by simply multiplying this factor with the weight of the wall required for equilibrium against sliding under the static condition.…”

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confidence: 99%

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Stability Assessment of Earth Retaining Structures under Static and Seismic Conditions

et al. 2019

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An accurate estimation of static and seismic earth pressures is extremely important in geotechnical design. The conventional Coulomb’s approach and Mononobe-Okabe’s approach have been widely used in engineering practice. However, the latter approach provides the linear distribution of seismic earth pressure behind a retaining wall in an approximate way. Therefore, the pseudo-dynamic method can be used to compute the distribution of seismic active earth pressure in a more realistic manner. The effect of wall and soil inertia must be considered for the design of a retaining wall under seismic conditions. The method proposed considers the propagation of shear and primary waves through the backfill soil and the retaining wall due to seismic excitation. The crude estimate of finding the approximate seismic acceleration makes the pseudo-static approach often unreliable to adopt in the stability assessment of retaining walls. The predictions of the active earth pressure using Coulomb theory are not consistent with the laboratory results to the development of arching in the backfill soil. A new method is proposed to compute the active earth pressure acting on the backface of a rigid retaining wall undergoing horizontal translation. The predictions of the proposed method are verified against results of laboratory tests as well as the results from other methods proposed in the past.

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Section: Resultscontrasting

confidence: 59%

Section: Resultsmentioning

confidence: 89%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Stability Assessment of Earth Retaining Structures under Static and Seismic Conditions

et al. 2019

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“…The authors illustrate that such mitigation can be economically effective through the use of low pressure grouting at a site in Turkey. The second seismic themed paper by Baziar et al (2013) relates to the evaluation of the sliding stability of gravity retaining walls. The paper compares the simple pseudo-static approach to the more rigorous pseudo-dynamic method where the dynamic interaction of the backfill and wall is considered.…”

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confidence: 99%