Static and dynamic analysis of a non-homogenous embankment
الموضوعات :
Ali Moradi
1
,
Ehsan Delavari
2
,
Mohsen Saadat
3
,
Shamsa Basirat
4
1 - Department of Civil Engineering, Islamic Azad University, Najafabad Branch, Najafabad, Iran
2 - Department of Civil Engineering, Islamic Azad University, Najafabad Branch, Najafabad, Iran
3 - Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
4 - Department of Civil Engineering, Islamic Azad University, Najafabad Branch, Najafabad, Iran
الکلمات المفتاحية: static analysis, dynamic analysis, FLAC, non-homogenous embankment dam,
ملخص المقالة :
In this paper, the vertical displacement of a non-homogenous embankment dam is investigated and evaluated in both static and dynamic states using FLAC software. In this regard, initially, the results obtained from this software are validated against the results of conventional methods. Subsequently, using FLAC software and 100 selected models, the impact of important dam parameters such as crest and core height on the vertical displacement of the dam is studied under various conditions in both static and dynamic states. The data analysis approach in this work involves considering a parameter as a witness. The witness parameter remains constant, and assuming that it does not participate in the analysis, one effective parameter and one criterion parameter are chosen for discussion and examination. For example, if the dam base is chosen as the witness parameter, and its value is intended to be 165 meters, the results have shown that an increase in the height of the earth dam leads to an increase in vertical displacements under static and dynamic loadings.
1. Raja, M.A. and B.K. Maheshwari, Behaviour of earth dam under seismic load considering nonlinearity of the soil. Open Journal of Civil Engineering, 2016. 6(02): p. 75.
2. Elia, G., et al., Fully coupled dynamic analysis of an earth dam. Géotechnique, 2011. 61(7): p. 549-563.
3. Naylor, D., Constitutive laws for static analysis of embankment dams, in Applications of Computational Mechanics in Geotechnical Engineering. 2021, Routledge. p. 289-316.
4. Sharafi, A., Static analysis of soral embankment dam during operation using precise dam tool data and finite element method. Journal of Critical Reviews, 2020. 19(7): p. 9089-9101.
5. Meehan, C.L. and F. Vahedifard, Evaluation of simplified methods for predicting earthquake-induced slope displacements in earth dams and embankments. Engineering Geology, 2013. 152(1): p. 180-193.
6. Gordan, B., et al., Review on dynamic behaviour of earth dam and embankment during an earthquake. Geotechnical and Geological Engineering, 2022. 40(1): p. 3-33.
7. Lyapichev, Y.P., Choice of mathematic models of soils in static and seismic analyses of embankment dams. Structural mechanics of engineering constructions and buildings, 2020. 16(4): p. 261-270.
8. Khan, M. and M. Seyedi, Dynamic responses of embankment dams, constituted from varied soil types, to seismic activity. Acadlore Trans. Geosci, 2023. 2(3): p. 177-187.
9. Prasad, K., et al., A variably saturated numerical model for seepage and stability analyses of an embankment dam with a central core. International Journal of Geotechnical Engineering, 2010. 4(1): p. 139-150.
10. Han, B., et al., Numerical investigation of the response of the Yele rockfill dam during the 2008 Wenchuan earthquake. Soil Dynamics and Earthquake Engineering, 2016. 88: p. 124-142.
11. Dong, W. and Y. Yu. Static and dynamic analyses of high core rockfill dams. in Constitutive Modeling of Geomaterials: Advances and New Applications. 2013. Springer.
12. Zewdu, A., Modeling the slope of embankment dam during static and dynamic stability analysis: a case study of Koga dam, Ethiopia. Modeling Earth Systems and Environment, 2020. 6(4): p. 1963-1979.
13. Fell, R., et al., Time for development of internal erosion and piping in embankment dams. Journal of geotechnical and geoenvironmental engineering, 2003. 129(4): p. 307-314.
14. Chebout, S. and R. Bahar, Static and Dynamic Analysis of Keddara Dam. International Journal of Engineering Research in Africa, 2022. 62: p. 71-84.
15. Talukdar, P. and A. Dey, Finite element analysis for identifying locations of cracking and hydraulic fracturing in homogeneous earthen dams. International Journal of Geo-Engineering, 2021. 12: p. 1-26.
