Analysis of the Earth Dams Function against the Effects of Long-Term Deposition in Reservoirs (Polrood Earth Dam-Guilan Province)
محورهای موضوعی : Structural EngineeringMahdi keshavarz 1 , Nasser Shamskia 2
1 - Department of Geomatics engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2 - Assistant professor, Department of Civil Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran
کلید واژه: Sediment load, earth-filled Polrood dam, Sediment forecasting, FLAC3D software,
چکیده مقاله :
Estimation of sediment transport load due to erosion in river basins is one of the issues which is indispensable for many projects related to water resources, soil and damps construction. With regards to the phenomenon of erosion and transmission Sedimentation in rivers has always led to deformation in the seaboard and sedimentation, so the management and planning in bank of rivers is important in water and soil resources and damp construction. Therefor checking the flow capacity of the sediment transportation and the sediment transportation mechanism in the river hydraulics and their sedimentation in dams are always one of the most fundamental problems in dams construction, and consumable life of dams are also directly related to this phenomenon. To deals with this issue, in this research, after predicting the 57-year-old sediment, the effects of sediment on Polrood earth-filled dam has been investigated by using FLAC3D software, which results show that the effective stress and displacement in the upstream shell is approximately equal to the state without applying sediment pressure.
[1] Bagherzadeh Khalkhali, B., "Common Instrumentation in Soil-Grit Dams", Workshop of Mosanir Power Engineering Services Co, Tehran. 1-8 Nov, 2009.
[2] Fatullah Marani, T., "Numerical Analysis of the Effect of Upstream Drainage on Cavity Water Pressure and Upper Sill Suspension of the Dam Dam under Rapid Evacuation of the Reservoir", Khajeh Nasir Al-Din Toosi University, for mastering civil engineering civil engineering. 200 pages, 2001.
[3] Rahimi, H., "Soil Dams", Tehran Publication and Printing Institute, Third Edition. 671 pages, 2010.
[4] Makrom, N., "Dynamic Analysis of Soil Dams with Asphalt Concrete Core", Master's Theses University of Tehran. 210 pages, 2002.
[5] Ghorravi, M. and Mohammadi, M., "Investigating the Necessity of Layer Modeling in Static Analysis of Khaki Dam",2nd National Conference on Damping. Islamic Azad University, Zanjan Branch, Jan. 10, Zanjan, 2009.
[6] Darsanch, s.,"Analysis and evaluation of the behavior of soil dams in Hussein's first dewatering-case study of Alavian Dam", Master's dissertation, Tabriz University. 215 pages, 2009.
[7] Ng, c. w. and pang, y. w., "Influence of stress state on soil-water characteristics and slope stability", Journal of geotechnical and geoenvironmental engineering. 126(2):157-166, 2000.
[8] Wang, S.Y. and sloan, S.W. and fityus, S.G. and Griffiths, D.V. and Tang, C.A., "Numerical modeling of pore pressure influence on feacture on fracture evolution in brittle heterogeneous rocks", Rock mechanics and rock engineering.45(5):1165-1182, 2013.
[9] daghegh, h. and Darwish, h. and Mousavi, S. A., "Analysis of Susceptibility of Soil Dams to Time", Journal of Water and Soil Conservation. Year 5, No, 2, 2015.
[10] Honaemand, M. and Brilliance, m. and Sadeghpour, a. h., "Comparison of 3D and Two Dimensional Analysis for Soil Dams Located in Tang Valley", Sharif Civil Engineering, Volume. 2-31, Issue, 2/1, 3-11, 2015.
[11] Feng, Z. and Tsai, N ., "Numerical earthquake response analysis of the Liyutan earth dam in Taiwan", Natural Hazards and Earth System Sciences. 10.6, 1269-1280, 2010.
[12] Broojerdi, B. and Sharifi, M. and Behnia, M. and Hazrati Aghchai, M., "Dynamic analysis of rock slopes using the distinct element method: A case study at the right abutment of the Upper Gotvand Dam, Iran", Journal of African Earth Sciences. 145, 53-67, 2018
[13] Russo, Z. and Dello, A., "Near-source effects on the ground motion occurred at the Conza Dam site (Italy) during the 1980 Irpinia earthquake", Bulletin of Earthquake Engineering. 15,10, 4009-4037, 2017.
[14] Keshavarz, M. and Shams Kia, N., "Comparison of Estimation of Sediment Load Suspended by Two Methods Sediment Scale Curve and Artificial Neural Network (Case Study of Ploud River in Guilan Province)", 5th Annual International Congress of Civil, Architecture and Urban Development, Shahid Beheshti University of Medical Sciences Tehran, Iran, December. 5-5, 2017.
[15] Waffen, M., "Soil Dams", Isfahan: University Jihad, Isfahan Industrial Complex, Five Books. 512 pages, 2009.
