Calculation of Nonlimit Active Earth Pressure against Rigid Retaining Wall Rotating about Base

Wang, Zeyue; Xin-xi, Liu; Wang, Weiwei

doi:10.3390/app12199638

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…Compared to the Coulomb theory, which focuses on wedges, the Rankine theory, which focuses on one point, is more suitable for the analysis of soil pressure on pit walls and roofs [47,48]. When conducting stress analysis, multiple strata should be considered as cohesive soil, and it should be noted that the drainage measures of the pit do not account for water pressure.…”

Section: Comprehensive Deformation Analysis Combined With On-site Mon...mentioning

confidence: 99%

Characteristics of Deformation and Stability of Ultra-Deep Pit in Plateau Alluvial–Lacustrine Gravel Strata

Guo,

Liu

2024

Processes

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Deformation of ultra-deep pit walls and surrounding geotechnical bodies due to engineering disturbances typically shows intricate spatiotemporal patterns. In this study, deformations at critical steps of the construction process were first numerically simulated by Midas GTS NX, and this was followed by lab-scale geophysical model tests of the entire process of the pit construction. Data on deformation obtained from numerical simulations and lab-scale geophysical model tests were compared with those obtained from a dynamic monitoring scheme in the field to analyze the characteristics of the deformation and evolution of the pit wall. This was used to derive a generally applicable theoretical expression to predict variations in the horizontal displacements.

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Section: Comprehensive Deformation Analysis Combined With On-site Mon...mentioning

confidence: 99%

Characteristics of Deformation and Stability of Ultra-Deep Pit in Plateau Alluvial–Lacustrine Gravel Strata

Guo,

Liu

2024

Processes

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“…In addition, Smith and Smith [15] stated that a reduction in the lateral pressures takes place due to changing the state of soil from an at-rest to an active condition caused by retaining wall movement. Wang et al [16] and Dang et al [17] pointed out that the current methods computing earth pressure have some limitations due to a lack of consideration of the impact of retaining wall displacement.…”

Section: Introductionmentioning

confidence: 99%

Performance of Pile–Wall System Adjacent to Footings

Sudani,

Jao

2024

Applied Sciences

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The performance of a retaining wall is dependent on multiple factors including lateral earth pressure, which results from backfill soils and adjacent footings located behind a retaining wall. The prediction of a retaining wall’s performance in a footing–soil–wall system (FSPS) must incorporate the influences caused by the movement of a retaining wall. This study examines the performance of a retaining wall formed by driven, precast, concrete piles located adjacent to a concrete footing using two- and three-dimensional finite element analysis (2D and 3D FEA) by ANSYS 13.0 software. Both soil and concrete are assumed to behave as non-linear, elastic-perfectly plastic and rate-independent materials in compliance with the upper-bound model of Drucker–Prager yield criterion. Three backfill and foundation soils are considered: kaolin, silty clay, and kaolin–sand. Various conditions of soil type, footing shape ratio, pile width, and footing–pile distance through 180 FEA runs are investigated. The effects of 2D and 3D FEA on the behavior of the pile–wall system are compared. The lateral deflection and pressure distribution profiles along the pile–wall are studied and presented. Two empirical equations predicting lateral deflections at the pile toe and pile head and useful for pile structural design are developed under the ultimate pressure of the adjacent footing.

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“…Then, both the horizontal slice method and the graphical procedure were used to estimate the displacement-dependent earth pressure. By using the curvilinear thin layer element method, Wang [42] included the effect of soil arching on active earth pressure.…”

Section: Introductionmentioning

confidence: 99%

Calculation Method of Earth Pressure Considering Wall Displacement and Axial Stress Variations

Dang,

Wang,

Cao

et al. 2023

Applied Sciences

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Current earth pressure calculation methods suffer from certain limitations because they do not consider the effect of retaining wall displacement. In this study, the soil behind the wall is assumed to be in a plane strain state, and drawing upon nonlinear elastic constitutive theory, an earth pressure calculation method is proposed, capable of considering both axial stress and wall displacement. To account for changes in soil modulus with confining pressure, the tangent modulus from the Duncan-Chang nonlinear model is introduced. Depending on the direction of the principal stress behind the retaining wall, the static earth pressure point, the major principal stress inflection point, and the minor principal stress second inflection point are determined. The conditions for the existence of the second inflection point are also given. These specific points, together with the limit earth pressure point, divide the earth pressures acting on the wall into six regions. The study provides earth pressure calculation formulas for T (translation) mode, RBT (rotation about a point below the base) mode, and RTT (rotation about a point above the top) mode based on the characteristics of wall displacement distribution in each mode. The proposed method exhibits good agreement with the test results, offering an effective approach for accurately calculating earth pressures related to displacement.

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Calculation of Nonlimit Active Earth Pressure against Rigid Retaining Wall Rotating about Base

Cited by 6 publications

References 29 publications

Characteristics of Deformation and Stability of Ultra-Deep Pit in Plateau Alluvial–Lacustrine Gravel Strata

Characteristics of Deformation and Stability of Ultra-Deep Pit in Plateau Alluvial–Lacustrine Gravel Strata

Performance of Pile–Wall System Adjacent to Footings

Calculation Method of Earth Pressure Considering Wall Displacement and Axial Stress Variations

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