A method for the design of embedded cantilever retaining walls under static and seismic loading

Conte, Enrico; Troncone, Antonello; Vena, Mirko; Chatterjee, Kaustav; Singh, Amol

doi:10.1680/jgeot.17.d.013

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…In prior research, attempts have been made to investigate the effects of different parameters on the active earth pressure coefficients, including the internal frictional angle, inclined angle, and seismic coefficient. However, these studies have been conducted using either the M‐C criterion or under 2D plane‐strain conditions.…”

Section: Resultsmentioning

confidence: 99%

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Three‐dimensional active earth pressure from cohesive backfills with tensile strength cutoff

Yang

2020

Num Anal Meth Geomechanics

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Summary Most of previous analyses on the active earth pressure were performed in two‐dimensional cases using the Mohr‐Coulomb (M‐C) failure function to describe the soil strength. However, all failures of retained slopes indicate a somewhat three‐dimensional (3D) feature, and the M‐C function is found to overestimate the tensile strength of cohesive soil. In this work, a kinematic limit analysis–based approach is developed for computing the 3D active earth pressure resulting from cohesive backfills. The concept of tensile strength cutoff is adopted to implement the reduction or elimination of tensile strength from the strength envelope. An extended 3D horn failure mechanism that is associated with the modified strength envelope is developed to characterize the collapse of retained slopes. The resultant of active earth pressure is evaluated from the work rate balance equation and expressed as an unfactored coefficient. The obtained results indicate that less support provided by the wall is required when allowing the existence of soil cohesion and 3D effects and that eliminating the tensile strength can observably increase the active earth pressure, especially for the backfill with a great level of cohesion.

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Section: Resultsmentioning

confidence: 99%

“…The active earth pressure estimation has gained much attention in the literature. Currently, a vast majority of the analyses proceeded under two‐dimensional (2D) conditions, with the soil strength represented by the Mohr‐Coulomb (M‐C) function.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional active earth pressure from cohesive backfills with tensile strength cutoff

Yang

2020

Num Anal Meth Geomechanics

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“…Slope instability is one of the most common geological disasters in geotechnical engineering. In order to improve the stability of it, many reinforcement methods have been developed including anchors [1][2][3], soil nailed walls [4][5][6][7], and reinforced materials [8][9][10]. For example, Zhang et al studied the failure behavior and mechanism of reinforced slopes using soil nail wall under various loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Study on the Stability of the Geogrids-Reinforced Earth Slope under the Coupling Effect of Rainfall and Earthquake

Zhang

Huang

Hou

et al. 2020

Mathematical Problems in Engineering

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This paper focuses on understanding the dynamic response problem of flexible wrapped reinforced Earth slope under the coupling effect of earthquake and rainfall; a numerical calculation model of reinforced Earth slope considering the coupling effect of earthquake and rainfall was established. The dynamic response, pore pressure, and tensile stress distribution of the reinforcement under the rainfall before earthquake, the rainfall after the earthquake, and earthquake-rainfall are studied. The results show that the coupling effect of earthquake and rainfall is an influential factor in the dynamic analysis of reinforced Earth slopes, the analysis of which should be paid attention to and researched in the future. The combination of geogrid and soil effectively improves the deformation of the slope and the overall stability, reduces the secondary disaster of the slope, and provides a reference for the seismic construction design of the reinforced Earth slope.

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“…Retaining walls can be cantilever or Anchored sheet piles. In case of the wall, height is between 3 - 5 m cantilever sheet pile walls can be used [2, 3, 4, 5, 6, 7, 8]. In case of the wall, height exceeds 5 m or when the design consideration induces the limitation of the lateral wall deflection anchored sheet pile walls can be used [9].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Fall

Gao

Ndiaye

2019

Heliyon

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In this study, a three-dimensional (3D) response of anchored sheet pile walls was investigated on double-anchored sheet pile system during soils excavation and tunnel construction sequence. This construction procedure is executed in areas front and adjacent the sheet pile walls. This paper focused on both areas of construction effects on the sheet piles. This numerical study aimed at the evaluation of the variation of bottom wall bending moment, top wall lateral and vertical displacements and anchor reactions forces exerted in the sheet piles. This paper also described the variation of the total anchor's reactions forces from the upper and lower anchors rows. A parametric effect such as upper and lower anchors rows distance was also performed to evaluate the variation of the wall bending moment, displacement and anchors total forces. The analysis results indicated that the reactions forces developed in the lower anchor rods are always higher than those developed in the upper anchor rods. The higher the distance between the upper and the bottom anchors the lower the displacement of the top wall in any stage of the construction. The minimum bottom walls bending moment is developed in the case where the distance between the anchor's rows divided by the wall height is 0.51. Positioning the upper anchors at 0.15 and the lower at 0.39 the wall height from the top wall will induce minimum top wall vertical displacement during soil excavation. This paper presents the results and findings of the parametric study performed.

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A method for the design of embedded cantilever retaining walls under static and seismic loading

Cited by 6 publications

References 5 publications

Three‐dimensional active earth pressure from cohesive backfills with tensile strength cutoff

Three‐dimensional active earth pressure from cohesive backfills with tensile strength cutoff

Study on the Stability of the Geogrids-Reinforced Earth Slope under the Coupling Effect of Rainfall and Earthquake

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

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