SavedAdd your journal

Journals / Challenge Journal of Structural Mechanics / 2021 / Cilt: 7 - Sayı: 1

Study on slope stability of frame prestressed anchor sheet pile wall with finite element strength reduction method

Amna Saeed AL-BANAA
Zhou YONG
Pages
49–57
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results show that the expansion angle has a differenteffect on the convergence of the two-dimensional slope model.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Slope stability analysis is performed in practical geotechnical engineering using the finite element method, which is an advanced method and is widely used by engineers.
📊
Key Findings & Data:In general, the expansion angle significantly influences the slope's stability and is not affected.
💡
Conclusion & Impact:The results show that the expansion angle has a differenteffect on the convergence of the two-dimensional slope model.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Özet

Slope stability analysis is performed in practical geotechnical engineering using the finite element method, which is an advanced method and is widely used by engineers. With the development of computer technology, it has become easy to study the slope's stability supported by frame prestressed anchor and sheet pile wall through the displacement-based finite element numerical analysis method, to calculate the safety factors. However, the expansion angle ψʹ is not widely covered. In this study, PLAXIS two-dimensional finite element method is using to establish the slope model supported by frame prestressed anchor and sheet pile wall, and the influence of ex-pansion angle on slope deformation is studied. The results show that the expansion angle has a differenteffect on the convergence of the two-dimensional slope model. In the model slope, a prestressed frame anchor and sheet pile wall reinforce the slope. The failure mechanisms were unclear when φʹ= ψʹ(flow base). Besides, when the slope has high soil strength parameters (c' or φʹ), the expansion angle will affect the calculation results and convergence. In general, the expansion angle significantly influences the slope's stability and is not affected. Therefore, it was necessary to note the effect of the angle of expansion on stability.

🔖

Cite This Article

AL-BANAA, A. S., YONG, Z. (2021). Study on slope stability of frame prestressed anchor sheet pile wall with finite element strength reduction method. Challenge Journal of Structural Mechanics, Cilt: 7 - Sayı: 1, 49–57. https://ajindex.com/articles/213702

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (16)

  1. Baker R, Shukha R, Operstein V, Frydman S (2006). Stability charts for pseudo-static slope stability analysis. Soil Dynamics and Earthquake Engineering, 26(9), 813–823.
  2. Bishop AW (1955). The use of slip circles in the stability analysis of earth slopes. Geotechnique, 5(1), 7–17.
  3. Cai F, Ugai K, Hagiwara T (2002). Base stability of circular excavation in soft clay. Journal of Geotechnical and Geoenvironmental Engineering, 128(8), 702–706.
  4. Cheng YM, Lansivaara T, Wei WB (2007). Two-dimensional slope stability analysis by limit equilibrium and strength reduction methods. Computers and Geotechnics, 34, 137–50.
  5. Dafalias YF (1986). Bounding surface plasticity. I: Mathematical foundation and hypo- plasticity. Journal of Engineering Mechanics, 112 (9), 966–987.
  6. Davis EH (1968). Theories of plasticity and failure of soil masses. In: Lee IK, editor. Soil Mechanics: Selected Topics. New York, NY, USA: Elsevier, 341–354.
  7. Dawson EM, Roth WH, Drescher A (1999). Slope stability analysis by strength reduction. Geotechnique, 49(6), 835–840.
  8. Griffiths DV (1999). Slope stability analysis by finite elements. Geotechnique, 49(3), 387-403.
  9. Griffiths DV, Lane PA (2001). Slope stability analysis by finite elements. Géotechnique, 51(7), 653–654.
  10. Griffiths DV, Marquez RM (2007). Three-dimensional slope stability analysis by elastic-plastic finite elements. Geotechnique, 57(6), 537–546.
  11. Hang L, Ping C (2012). Influence of material dilation angle on stability of homogeneous with surcharge load. International Journal of Geotechnical Engineering, 17C, 329–340.
  12. Ho IH (2014). Parametric studies of slope stability analyses using three-dimensional finite element technique: geometric effects. Journal of GeoEngineering, 9(1), 33–43.
  13. Hwang J, Dewoolkar M, Ko HY (2002). Stability analysis of two-dimensional excavated slopes considering strength anisotropy. Canadian Geotechnical Journal, 39(5), 1026–1038.
  14. Jerman J, Mašín D (2020). Hypoplastic and viscohypoplastic models for soft clays with strength anisotropy. International Journal for Numerical and Analytical Methods in Geomechanics, 44(10), 1396– 1416. Kolymbas D (2012). Barodesy: a new hypo plastic approach. International Journal for Numerical and Analytical Methods in Geomechanics, 36(9), 1220–1240.
  15. Kumar J (2000). Slope stability calculations using limit analysis. In: Proc. Slope Stability, ASCE Special Publication, 101, 239–249.
  16. Kumar J (2004). Stability factors for slopes with nonassociated flow rule using energy consideration. Internatio