Discretization-based kinematic approach for three-dimensional trench stability under slurry support in multilayered ground

Wang, Hongyu; Huang, Maosong; Liu, Yihui; Chian, Siau Chen

doi:10.1007/s11440-023-02099-6

Acta Geotech.

2023

DOI: 10.1007/s11440-023-02099-6

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Discretization-based kinematic approach for three-dimensional trench stability under slurry support in multilayered ground

Hongyu Wang,

Maosong Huang,

Yihui Liu

et al.

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2024

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An improved discretization‐based kinematic approach for stability analyses of nonuniform c‐φ soil slopes

Wang,

Meng,

Qin

2024

Num Anal Meth Geomechanics

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This paper proposes an improved discretization‐based kinematic approach (DKA) with an efficient and robust algorithm to investigate slope stability in nonuniform soils. In an effort to ensure rigorous upper‐bound solutions which may be not satisfied by the initial DKA based on a forward difference method (DKA‐FD), a central and backward difference “point‐to‐point” method (DKA‐CD and DKA‐BD) is proposed to generate discretized points to form a velocity discontinuity surface. Varying (including constant) soil frictional angles along depth are discussed, which can be readily considered in the improved DKA‐CD. Work rate calculations are performed to derive upper‐bound formulations of slope stability number, and critical failure surface is correspondingly obtained at limit state. The comparison with forward and backward difference methods clearly reveals that the improved DKA‐CD could significantly reduce the mesh‐dependency issue and enhance efficacy of slope stability analyses in nonuniform soils.

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An improved discretization‐based kinematic approach for stability analyses of nonuniform c‐φ soil slopes

Wang,

Meng,

Qin

2024

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

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Discretization-based kinematic approach for three-dimensional trench stability under slurry support in multilayered ground

Cited by 1 publication

References 37 publications

An improved discretization‐based kinematic approach for stability analyses of nonuniform c‐φ soil slopes

An improved discretization‐based kinematic approach for stability analyses of nonuniform c‐φ soil slopes

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