Analytical and numerical investigations of soil slopes subjected to seismic loadings

Author

Pragyan Pradatta Sahoo

Author Identifier

ORCID: 0000-0002-6788-0415

Date of Award

2019

Document Type

Thesis - ECU Access Only

Publisher

Edith Cowan University

Degree Name

Doctor of Philosophy

School

School of Engineering

First Supervisor

Associate Professor Sanjay Kumar Shukla

Second Supervisor

Dr Alireza Mohyeddin

Abstract

Seismic slope stability is one of the critical areas in the field of earthquake geotechnical engineering in view of catastrophic geohazards. Over the years, significant advances have been made in the methodologies of slope stability analysis subjected to seismic loadings. The seismic stability analysis of the slopes is influenced by various factors, and therefore, a complete seismic slope stability analysis must account the soil properties, geological parameters, slope geometry and loading to eliminate the susceptibility of slope failures. A detailed review of the literature shows that several analytical and numerical studies have been carried out to investigate the effect of different geotechnical parameters on stability analysis during earthquake condition; however, the effect of vertical seismic loading on the slope stability has generally be ignored. It is also noticed that most analytical methods of seismic slope stability analysis, as available for routine field applications, account for the horizontal seismic loading only. Recent findings have shown that consideration of vertical seismic force has a high possibility to influence the conventional slope stability analysis. Therefore, there is a big scope to study the combined effect of horizontal and vertical seismic loadings on the stability of slopes by developing improved analytical methods and numerical models...

Related Publications

Sahoo, P. P., & Shukla, S. K. (2021). Effect of vertical seismic coefficient on cohesive-frictional soil slope under generalised seismic conditions. International Journal of Geotechnical Engineering. 15, 107-119. Doi:10.1080/19386362.2020.1711553 Link to article available here.

Sahoo, P. P., & Shukla, S. K. (2020). Sustainable design of slopes under earthquake conditions. In Sustainable Civil Engineering Practices (pp. 51-59). Springer, Singapore. Doi:10.1007/978-981-15-3677-9_6. Link to chapter available here.

Sahoo, P. P., & Shukla, S. K. (2021). Time-history analysis of soil slope subjected to seismic loadings. Soil Mechanics and Foundation Engineering, 58(2), 130-137. Doi:10.1007/s11204-021-09717-z. Link to article available here.

Sahoo, P. P., Shukla, S. K., & Mohyeddin, A. (2018). Analytical expressions for determining the stability of cohesionless soil slope under generalized seismic conditions. Journal of Mountain Science, 15(7), 1559-1571. Article available here.

Sahoo, P. P., Shukla, S. K., & Mohyeddin, A. (2018). Slope stability of tailing dam under seismic excitation. In Solving Pavement and Construction Materials Problems with Innovative and Cutting-edge Technologies (pp. 76-82). Springer, Cham. Doi:10.1007/978-3-319-95792-0_7. Link to paper available here.

Sahoo, P. P., & Shukla, S. K. (2019). Taylor's slope stability chart for combined effects of horizontal and vertical seismic coefficients. Géotechnique, 69(4), 344-354. Article available here.

Recommended Citation

Sahoo, P. P. (2019). Analytical and numerical investigations of soil slopes subjected to seismic loadings. Edith Cowan University. Retrieved from https://ro.ecu.edu.au/theses/2260