Earth pressure in narrow cohesive-fictional soils behind retaining walls rotated about the top: An analytical approach

Yang, Dayu; Lai, Fachun; Liu, Songyu

doi:10.1016/j.compgeo.2022.104849

Cited by 18 publications

(8 citation statements)

References 45 publications

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“…A series of numerical studies on the failure mechanism of retaining walls with narrow backfill have been also conducted including the finite element method, 19 the finite difference method, 20 and the finite element limit analysis method. [21][22][23][24][25][26][27][28] These works contributed to the further improvement of the earth pressure theory. However, the discrete element method has been seldom used to investigate the failure mechanism of the narrow backfill behind the retaining walls, especially for the passive failure mechanism.…”

Section: Introductionmentioning

confidence: 94%

“…In recent years, the studies on earth pressure have been extended from semi-infinite backfill to that with narrow backfill. 5,[29][30][31][32][33][34][35] Ying et al 19 conducted a series of finite element analyses to investigate the passive earth pressure against retaining walls with narrow space. The authors assumed that reflective failure surfaces develop into the backfill surface after an initial linear failure surface intersecting with an existing structure.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In recent years, the studies on earth pressure have been extended from semi‐infinite backfill to that with narrow backfill 5,29–35 . Ying et al 19 .…”

Section: Introductionmentioning

confidence: 99%

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Discrete element analysis and analytical method on failure mechanism of retaining structures with narrow granular backfill

Li,

Chen,

Chen

et al. 2023

Num Anal Meth Geomechanics

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Ascertaining failure mechanism is a prerequisite of the derivation for earth pressure against retaining structures. Retaining structures constructed adjacent to existing structures and excavation with narrow backfill have become common in practical engineering. The backfill width has a significant effect on the failure mechanism, requiring further study. In this study, a series of discrete element analyses are conducted to investigate the shear localization in soil mass behind retaining structures with narrow backfill in the active and passive limit states at the grain scale. Furthermore, the distribution characteristic of failure surfaces in soil mass is discussed from three aspects: the development of the failure surface, the state of soil mass behind retaining structures, and the shape of the failure surface. Based on the typical nonlinear failure mechanisms observed in particle rotation contours with various backfill widths and interface friction angles, the failure mechanisms behind retaining structures with narrow spacing are categorized into three types according to the backfill widths. According to the stress characteristics of interfaces under different failure mechanisms, the variational method and Mohr stress circle analysis are adapted to analytically obtain the failure surfaces behind the retaining structure with narrow backfill. Comparisons with results obtained by the discrete element simulation show a reasonable agreement. In addition, a series of parameter studies are conducted to investigate the effect of backfill widths and interface friction angles on the failure mechanism.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In recent years, the studies on earth pressure have been extended from semi‐infinite backfill to that with narrow backfill 5,29–35 . Ying et al 19 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Discrete element analysis and analytical method on failure mechanism of retaining structures with narrow granular backfill

Li,

Chen,

Chen

et al. 2023

Num Anal Meth Geomechanics

View full text Add to dashboard Cite

show abstract

“…The LB and UB calculations are formulated as SOCP to obtain the FSs of PIP braced excavations. Till now, OptumG2 has been successfully employed to solve various undrained stability problems, including excavations (Keawsawasvong & Ukritchon, 2017a, Keawsawasvong & Ukritchon, 2019Chen et al, 2020), slopes (Yang et al, 2016;Oberhollenzer et al, 2018), pile foundations (Keawsawasvong & Ukritchon, 2017b;Zhou et al, 2020b), marine infrastructures (Ke et al, 2020), earth retaining structures (Lai et al, 2022b;Yang et al, 2022), and trapdoor problems (Keawsawasvong & Ukritchon, 2017c;Lai et al, 2020a;Shiau et al, 2021Shiau et al, , 2022.…”

Section: Use Of Felamentioning

confidence: 99%