Effect of Seismic Load on the Stability of Earth Dam Reinforced with Geosynthetic Material

Document Type : Original Article

Authors

1 M.Sc. of Geotechnical Engineering, Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran

2 Assistant Professor, Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran.

Abstract

Earth dams are sometimes built with large dimensions in order to produce electrical energy, control floods, supply drinking water and agriculture, etc. The failure of earth dams also causes irreparable economic and human losses, which increased the importance of designing and strengthening dams. The stability of earth dam mainly depends on the shear strength of the soil, and this resistance in earth dams is provided by the friction between soil particles. The greater the angle of internal friction between soil particles, the more the shear resistance of soil improves. As a result, the stability of dam increases. The issue of increasing the shear strength in the soil with using geosynthetics in the earth dam is the main goal of this research. The effect of geosynthetics and their arrangement, placement distance from each other, length, and materials used, including cohesion, unit weight and internal friction angle are the main research variables. In this research, by using geotextile in the earth dam body, the stability and safe and economical design of the dam in static and dynamic state under seismic load has been evaluated. For this purpose, Plexis software has been used.

Keywords

References

[1]- Fellenius, W., 1936, Calculation of stability of earth dams, Transactions, 2nd International congress on large dams, Int. Commission Large Dams, 445-449.
[2]- Jiang, Y. S., 1990, Slope Analysis using boundary elements, New York: Springer-Verlang Publisher.
[3]- Matsui, T., and San, K., 1992, Finite element slope stability analysis by shear strength reduction technique, Soils and Foundations, 32, 59-70
[4]- Jaritngam, S., Chuchom, S., Limsakul, C., and Jaritngam, R., 2001, Slope stability analysis using neural networks, In: The 6th mining, metallurgical and petroleum engineering conference on resources exploration and utilization for sustainable environment (REUSE), 24-66
[5]- Janbu, N., 1954, Application of composite slip surface for stability analysis, In: Proceeding of European conference on stability earth slopes, Stockholm, Sweden, 21-29.
[6]- Lowe, J., and karafiath, L., 1960, Stability of earth dams upon drawdown, In: Proceeding of first pan-American conference on soil mechanics and foundation engineering, 2, 537-552.
[7]- Taylor, D. W., 1940, Stability of earth slopes, J. Boston Society of Civil Engineers reprinted in contributions to soil Mechanics. Boston Society of civil engineers, 337-386.
[8]- Bishop, A. W., 1955, The use of slip circle in the stability analysis of slopes, Geotecnique, 7-17.
[9]- Morgenstern, N. R., and Price, V. E., 1965, The Analysis of the stability of general slope surfaces, Geotecnique, 79-93.
[10]- Bore, H., 1999, TELDYN – Users, Manual, Lafayette, California.
[11]- Saravut, J., Somchai, C., Chusak, L., and Rittisak, J., 2002, Neural Networks: a tool for the Slope Stability Analysis, 3th International conference on Landslides, slope stability and safety of infrastructures, 11-12, Singapore.
[12]- Broms, B. B., 1977, Triaxal Tests with Fabric-Reinforced Soil, Proceeding of International Conference on Use of Fabrics in Geotechnics, Paris, France, III, 109-133.
[13]- Mc Gown, A., Andrawes, K. Z. and Al-Hasani, M. M., 1978, Effect of Inclusion Properties on the Behaviour of Sand, Geotechnique, 8, 3, 327-346.
[14]- Gray, D. H., and Ohashi, H., 1983, Mechanics of Fiber Reinforcement in Sand, Journal of Geotechnical Engineering Division, ASCE, 109, 3, 335-353.
[15]- Ameskamp, M., 1997, Three dimensional rule-based continuous soil modeling, Ph.D. dissertation, Technical Report, 9701, Faculty of Engineering, Kiel University, Kiel, Germany.
Advance Researches in Civil Engineering
Volume 4, Issue 3
September 2022
Pages 39-49

Files

Share

How to cite

Statistics