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Analysis of sand-sliding slope stability under diff erent excavation extents

Yu Zhang, Jinhai Yu, Shibo Huang, Jiang Wang


To study the stability of sand-sliding slopes under diff erent excavation extents, this paper selects a specifi c sand-sliding slope
along the G318 highway from Yupu to Ranwu as the research object. Through fi eld surveys, literature review, and numerical simulation,
the stability of the sand-sliding slope is analyzed. The study shows that: (1) After the slope excavation, the overall maximum shear strain
increment increases with the gradual increase of the excavation footage, the stress at the slope foot gradually increases, and the stress
contour at the excavation site gradually concentrates towards the slope foot.


Sand-sliding slope; Excavation; Numerical simulation; Stability analysis

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Included Database


[1]Song Z, Zhang G Z, Jiang L W, etal. Analysis of the main geological hazards and geological route selection of Sichuan-Tibet Railway[J]. Railway Standard

Design, 2016, 60(1): 14-19.

[2]Yao J, Li X Z, Xu R C. Dynamic identifi cation of three-dimensional stability of potential landslides in typical section of Sichuan-Tibet Railway under

rainfall[J]. Journal of Disaster Prevention and Mitigation Engineering, 2021,41(03): 422-431

[3]Sharpe C F S. Landslides and related phenomena[M]. New York: Columbia University Press, 1938: 125.

[4]Zhang J. Study on instability model and prevention measures of progressive recharge failure of sand slide slope[D]. Chengdu University of Technology,


[5]He N. Experimental study on slope deformation and failure mechanism of dispersing granular mass [D]. Chengdu University of Technology, 2013.

[6]Xia K, Tian R Y, Lv J B, et al. Analysis and study on stability of sand sliding slope under rainfall conditions[J]. Highway, 2019, 64(06): 20-26.

[7]Ye T J, Li H, Lu H T, et al. Study on numerical simulation method for stability of sand sliding slope[J]. Plateau Scientifi c Research, 2020, 4(03): 96-104.

[8]Wu X F, Wang Y, Ye T J, et al. Seismic Dynamic Response and Instability Mechanism of Slopes in Nyingchi-Bome Section of G318 Highway, Tibet[J].

Journal of Southwest Jiaotong University, 2017, 52(3): 571-577.

[9]Chen Y M. FLAC/FLAC3D Foundation and Engineering example [M]. Background: China Water Resources and Hydropower Press. 2013

DOI: http://dx.doi.org/10.18686/modern-management-forum.v8i5.12916