Mohamed, M., Karim, I., Fattah, M. (2023). Impact of Dam Materials and Hydraulic Properties on Developing the Breaching Dimensions. , 41(5), 716-723. doi: 10.30684/etj.2023.138009.1368
Mahmood J. Mohamed; Ibtisam R. Karim; Mohammed Y. Fattah. "Impact of Dam Materials and Hydraulic Properties on Developing the Breaching Dimensions". , 41, 5, 2023, 716-723. doi: 10.30684/etj.2023.138009.1368
Mohamed, M., Karim, I., Fattah, M. (2023). 'Impact of Dam Materials and Hydraulic Properties on Developing the Breaching Dimensions', , 41(5), pp. 716-723. doi: 10.30684/etj.2023.138009.1368
Mohamed, M., Karim, I., Fattah, M. Impact of Dam Materials and Hydraulic Properties on Developing the Breaching Dimensions. , 2023; 41(5): 716-723. doi: 10.30684/etj.2023.138009.1368

Impact of Dam Materials and Hydraulic Properties on Developing the Breaching Dimensions

Engineering and Technology Journal
Article 10, Volume 41, Issue 5, 2023, Pages 716-723    PDF (860.66 K)
Document Type: Research Paper
DOI: 10.30684/etj.2023.138009.1368
Authors
Mahmood J. Mohamed* ; Ibtisam R. Karim; Mohammed Y. Fattah
Civil Engineering Dept., University of Technology-Iraq, Alsina’a street, 10066 Baghdad, Iraq.
Abstract
Dam safety is an important issue as it directly influences environmental and life losses. Embankment material and embankment core are important factors that contribute to determining the size and hydraulic characteristics of the breach that occurs due to dam failure. The current topic is to present the analysis of the impact of the dam materials properties and hydraulic characteristics on breach dimensions due to overtopping failure using 2D-HEC-RAS software with the aid of RAS-Mapper. The analysis was made by Digital Elevation Model (DEM) conversed to a Triangular Irregular Network (TIN), then the 2D area of the dam was determined and the storage area boundary was calculated. Mosul dam in Iraq, considered one of the big dams that consist of different materials in the core and body, was selected as a case study to simulate the dam breach development due to overtopping failure. Six scenarios of dam failure were carried out for three types of dam materials (dam with corewall, concrete-face dam, and homogeneous zoned fill dam), each with high and medium erodibility. All scenarios were made for the reservoir elevation of 341 m which is considered the probable elevation for failure occurrence. The results showed that the minimum and maximum values of breach width were found to be 542 m and 1118 m, respectively in both cases of concrete-face dam type with a high erodibility and homogeneous zoned fill dam with medium erodibility rate. It has been illustrated that the medium erodibility in each scenario gives a smaller width for a long time, especially in homogeneous zoned fill dam type which is a good indication in engineering design. The analysis of sensitivity was carried out to examine the impact of pool volume at failure on breaching time and width of the breach. It showed that the breach width is more sensitive to reservoir fill capacity and there is a linear relationship between water volume reduction ratios and the breach width. Finally, tests of the six cases reveal that the proposed model is sensitive to soil conditions.

Highlights
  • The 2D HEC-RAS models for the overtopping failure in a virtual dam were examined.
  • The maximum breach width occurs in a short time with a side slope greater than 1:1 in the concrete face dam.
  • The medium erodibility in each scenario gave a small width value and a long time for breach forming.
  • Breach width and time are more sensitive to reservoir-filled capacity.
Keywords
2D HEC; RAS Erodible reservoir capacity materials of dam overtopping failure breach dimensions
References
  1. H. Obead, H. A., Omran, M. Y., Fattah, Safety Assessment of Hadithah Dam Under Extreme Operations and Collapsible Foundation Challenges, Eng. Technol. J., 38 (2020) 1771-1782. https://doi.org/10.30684/ETJ.V38I12A.611
  2. Pickert, V. Weitbrecht, and A. Bieberstein, Breaching of overtopped river embankments controlled by apparent cohesion, J. Hydraul. Res., 49 (2011)143–156. https://doi.org/10.1080/00221686.2011.552468
  3. Di. Cristo, S. Evangelista, M. Greco, M. Iervolino, A. Leopardi, and A. Vacca, Dam- break waves over an erodible embankment: experiments and simulations, J. Hydraul. Res., 56 (2018) 196–210. https://doi.org/10.1080/00221686.2017.1313322
  4. V. Hernández-Fontes, M. A. Vitola, P. T. T. Esperança, S. H. Sphaier, and R. Silva,Patterns and vertical loads in water shipping in systematic wet dam-break experiments, Ocean Eng., 197 (2020) 106891. https://doi.org/10.1016/j.oceaneng.2019.106891
  5. E. Coleman, D.P., Andrews, M.G., Webby, Overtopping breaching of non cohesive homogeneous embankments, J. Hydraul. Eng., 128 (2002)829-837. https://doi.org/10.1061/(ASCE)0733-9429(2002)128:9(829)
  6. A. Feliciano Cestero, J. Imran, M. H. Chaudhry, Experimental Investigation of the Effects of Soil Properties on Levee Breach by Overtopping, J. Hydraul. Eng., 141(2015) 04014085. https://doi.org/10.1061/(ASCE)HY.1943-7900.0000964
  7. A. Basheer, A. B. Yusuf, M. R. Kamal, Dam Breah Parameters and their Influence on Flood Hydrograph or Mosul Dam, Eng. Sci.Technol., 12 (2017) 2896–2908.
  8. Lakhlifi, S. Daoudi, and F. Boushaba, Dam-Break computations by a dynamical adaptive finite volume method, J. Appl. Fluid Mech., 11 (2018) 1543–1556. https://doi.org/10.29252/jafm.11.06.28564
  9. Ashraf, A. H. Soliman, E. El-Ghorab, and A. El Zawahry, Assessment of embankment dams breaching using large scale physical modeling and statistical methods, Water Sci., 32 (2018) 362–379. https://doi.org/10.1016/j.wsj.2018.05.002
  10. Amaral, L. Caldeira, T. Viseu, and R. M. L. Ferreira, Designing experiments to study dam breach hydraulic phenomena, J. Hydraul. Eng., 146 (2020) 4020014. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001678
  11. Hui Fan, M. Galoie, and A. Motamedi, Mitigation of the amplitude and celerity of dam break shock wave using combination of groyne and vertical pier, J. Mountain Sci., 17 (2020) 1452–1461. https://doi.org/10.1007/s11629-019-5897-6
  12. D. Abdulrazzaq, Q. H. Jalut, and J. M. Abbas, Sensitivity analysis for dam breach parameters using different approaches for earth-fill dam, Diyala J. Eng. Sci., 14 (2021) 90–97. https://doi.org/10.24237/djes.2021.14408
  13. Ammar. "Numerical Investigation of 2D Dam-Brea Failures by Using GIS Applications". Doctoral thesis, Middle East Technical University, Turkey, 2021.
  14. A.H. Nama, A S. Abbas, J. S. Maatooq, & quot; Hydrodynamic Model-Based Evaluation of Sediment Transport Capacity for the Makhool-Samarra Reach of Tigris River, Technol. J., 40 (2022) 1–16. https://doi.org/10.30684/etj.2022.135747.1282
  15. R. Karim, Z. F. Hassan, H. H. Abdullah, and I. A. Alwan, 2d-hec-ras modeling of Flood wave propagation in a semi-arid area due to dam overtopping failure, Civ. Eng. J., 7 (2021) 1501–1514. https://doi.org/10.28991/cej-2021-03091739
  16. Alhasan, J. Jandora, and J. Říha, Study of dam-break due to overtopping of four small dams in the Czech Republic, Acta Univ. Agric. Silvic. Mendelianae Brun., 63 (2015) 717–729. https://doi.org/10.11118/actaun201563030717
  17. Alwan, Z. Majeed, and A. Abbas, Water Flow Simulation of Tigris 329 River Between Samara and Baghdad Based on HEC-RAS Model, Eng.Technol. J., 39 (2021) 1882–1893. https://doi.org/10.30684/etj.v39i12.1804
  18. C. Froehlich, Embankment Dam Breach Parameters and Their Uncertainties, J. Hydraul. Eng., 138 (2008)1709-1721.https://doi.org/10.1061/(ASCE)0733-9429(2008)134:12(1708)
  19. Xu,L. M. Zhang, Breaching Parameters for Earth and Rockfill Dams, J. Geotech. Geoenviron. Eng., 135 (2009) 1957–1970. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000162
  20. Al-Ansari, N. Adamo, M. R. Al-Hamdani, K. Sahar, and R. E. A. Al-Naemi, Mosul Dam Problem and Stability, Engineering, 3 (2021) 105–124. http://dx.doi.org/10.4236/eng.2021.133009
Statistics
Article View: 201
PDF Download: 354


Journal Management System. Powered by iJournalPro.com