Analysis of Maximum Economic Length of Soil Nail for Slope Stability

Bhashkar Pathak

Abstract


Slope stability is of utmost importance in geotechnical engineering, necessitating effective reinforcement methods to mitigate failures. This study examined the advantages, limitations, and overall suitability of soil nails and cable anchors in stabilizing slopes. Numerical modeling and analysis were performed using the Rocscience Slide2 program. The study analyzed soil nails and cable anchors for slopes of 10 m to 60 m height, slope angle from 35° to 90°, and friction angle from 27° to 36°. The findings reveal that the maximum economic length of soil nails decreases as slip surface depth, slope height, and slope angle increase. Additionally, the friction angle of the soil has a negligible effect on the maximum economic length of the soil nail.

Keywords


Soil Nail, Cable Anchor, Slope Stability, Slope Reinforcement

Full Text:

PDF

References


M. A. Hossain and A. Islam, “Numerical analysis of the effects of soil nail on slope stability,” Int J Comput Appl, vol. 141, no. 8, pp. 12–15, 2016.

S. Mittal and A. K. Biswas, “River bank erosion control by soil nailing,” Geotechnical & Geological Engineering, vol. 24, pp. 1821–1833, 2006.

J. M. Duncan, S. G. Wright, and T. L. Brandon, Soil strength and slope stability. John Wiley & Sons, 2014.

L. Hobst and J. Zajíc, Anchoring in rock and soil. Elsevier, 1983.

R. Budania, R. P. Arora, and C. Ce, “Soil nailing for slope stabilization: an overview,” Int J Eng Sci, vol. 3877, 2016.

T. H. Wu, “Slope stabilization. Slope Stabilization and Erosion Control: A Bioengineering Approach. E&FN Spon.” Chapman & Hall, London, 1995.

P. P. Xanthakos, Ground anchors and anchored structures. John Wiley & Sons, 1991.

C. A. Lazarte et al., “Geotechnical engineering circular No. 7 soil nail walls-reference manual,” National Highway Institute (US), 2015.

S. N. L. Taib, “A review of soil nailing design approaches,” Journal of Civil Engineering, Science and Technology, vol. 1, no. 2, pp. 1–6, 2010.

E. B. Altalhe and H. Abdalftah, “Study using nails in sand soil: stability, anchored length,” in International Conference on Technical Sciences (ICST2019), 2019, p. 40.

C.-C. Fan and J.-H. Luo, “Numerical study on the optimum layout of soil–nailed slopes,” Comput Geotech, vol. 35, no. 4, pp. 585–599, 2008.

R. A. Jewell and M. J. Pedley, “Analysis for soil reinforcement with bending stiffness,” Journal of Geotechnical Engineering, vol. 118, no. 10, pp. 1505–1528, 1992.

N. T. Pham, P. Bing, and N. V. Nguyen, “Study on the effect of some parameters of soil nails on the stability of vertical slopes,” J Min Earth Sci, vol. 61, no. 6, pp. 30–37, 2020.

M. Zhang, E. Song, and Z. Chen, “Ground movement analysis of soil nailing construction by three-dimensional (3-D) finite element modeling (FEM),” Comput Geotech, vol. 25, no. 4, pp. 191–204, 1999.

L. Shaw-Shong, “Soil nailing for slope strengthening,” Geotechnical Engineering, Gue & Partners Sdn Bhd, Kuala Lumpur, Malaysia, pp. 30–31, 2005.

C. Zhou, C. Huang, Y. Chen, Q. Dong, and W. Sui, “Development of a novel resilient anchor cable and its large shear deformation performance,” International Journal of Rock Mechanics and Mining Sciences, vol. 163, p. 105293, 2023.

“Rocscience Inc.” https://www.rocscience.com/software/slide2

D. Wu, Y. Wang, Y. Qiu, J. Zhang, and Y. Wan, “Determination of Mohr-Coulomb Parameters from Nonlinear Strength Criteria for 3D Slopes,” Math Probl Eng, vol. 2019, 2019, doi: 10.1155/2019/6927654.

“ILLAM-DISTRICT-RATE-2079-80”.

“Soil Nail Walls - January 2021,” 2021.

S. Alsubal, I. S. H. Harahap, and N. M. Babangida, “A typical design of soil nailing system for stabilizing a soil slope: case study,” Indian J Sci Technol, vol. 10, no. 4, pp. 1–7, 2017.

S. Dewedree and S. N. Jusoh, “Slope stability analysis under different soil nailing parameters using the SLOPE/W software,” in Journal of Physics: Conference Series, IOP Publishing, 2019, p. 012008.

7 Author, P. J. Sabatini, D. G. Pass, and R. C. Bachus, “GEOTECHNICAL ENGINEERING CIRCULAR NO. 4 Ground Anchors and Anchored Systems 4. Report Date 13 Type of Report and Period Covered Unclassified,” 1999.

B. of Indian Standards, “IS 14243-2 (1995): Guidelines for selection and development of the site for building in hill areas, Part 2: Selection and development.”

“INFORMATION BULLETIN / PUBLIC-BUILDING CODE SLOPE STABILITY EVALUATION AND ACCEPTANCE STANDARDS.” [Online]. Available: https://geohazards.usgs.gov/deaggint/2008/.

E. Robson, A. Agosti, S. Utili, and D. Milledge, “A methodology for road cutting design guidelines based on field observations,” Eng Geol, vol. 307, Sep. 2022, doi: 10.1016/j.enggeo.2022.106771.

L. W. Abramson, T. S. Lee, S. Sharma, and G. M. Boyce, Slope stability and stabilization methods. John Wiley & Sons, 2001.




DOI: https://doi.org/10.31284/j.jemt.2023.v4i1.4819

Refbacks

  • There are currently no refbacks.


Copyright (c) 2023 Bhashkar Pathak

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.