1. bookVolume 13 (2017): Issue 2 (June 2017)
Journal Details
License
Format
Journal
eISSN
2784-1391
First Published
12 Apr 2013
Publication timeframe
4 times per year
Languages
English
Open Access

Stability Analysis of a Coal Combustion Residuals Impoundment

Published Online: 05 Aug 2017
Volume & Issue: Volume 13 (2017) - Issue 2 (June 2017)
Page range: 27 - 41
Journal Details
License
Format
Journal
eISSN
2784-1391
First Published
12 Apr 2013
Publication timeframe
4 times per year
Languages
English
Abstract

The overall stability of the Rovinari dry ash slurry impoundment is analyzed using a coupled seepage-stability analysis with the Finite Element Method in a bidimensional model. To better understand the behavior of such a complex structure, based on the material properties presented in Table 2, the hypotheses presented in Table 4 and described as such, a number of 9 general hypotheses were analyzed, at 178.00 m a.s.l. deposit elevation and final designed height of approximately 35.30 m which corresponds to 191.3 m a.s.l.. The results are presented in tabular form, only 8 diagrams are selected which show the Factor of Safety for hypothesis 0 and 3 which are considered to best describe the real-life conditions regarding the boundary conditions used. The results show that even at maximum designed height, the deposit is stable in the most realistic worst-case hypothesis 3, with a Factor of Safety of 1.177.

Keywords

[1] Stematiu D. (1988). Calculul Structurilor Hidrotehnice prin Metoda Elementelor Finite (in Romanian), București, Editura Tehnică.Search in Google Scholar

[2] Prișcu R. (1974). Construcții Hidrotehnice, Volumul II, București, Editura Didactică și Pedagogică (in Romanian).Search in Google Scholar

[3] Shreya N., Biswajit P. (2012). Compaction and Hydraulic Conductivity Analysis of Fly ash of B.T.P.S. for the construction of a Natural Geoliner.Search in Google Scholar

[4] Dewberry Consultants LLC Fairfax, Virginia, (2013). Coal Combustion Residue Impoundment Round 11 - Dam Assessment Report Cumberland Fossil Plant Dry Ash Storage / Ash Pond TVA Cumberland City, Tennessee.Search in Google Scholar

[5] Shivakumar S. et. al. (2015). Seepage and Stability Analyses of Earth Dam Using Finite Element Method, International conference on water resources, coastal and ocean engineering (ICWRCOE 2015), Aquatic Procedia 4, pp. (876 - 883).Search in Google Scholar

[6] Zhou De-quan et. al. (2008). Geological behavior of wet outflow deposition fly ash, DOI: 10.1007/s11771−008−0436−6.Search in Google Scholar

[7] Muntean M.D., Morariu A. (2014). The influence of slag and ash deposit used by Drobeta -Turnu Severin power plant concerning groundwater in the area, Journal of Young Scientist, Volume II, ISSN Online 2344 - 1305.Search in Google Scholar

[8] GEO-SLOPE International Ltd. (February 2010). Seepage Modeling with SEEP/W 2007 an Engineering Methodology, Fourth Edition.Search in Google Scholar

[9] GEO-SLOPE International Ltd. (February 2010). Stability Modeling with SLOPE/W 2007 Version an Engineering Methodology, Fourth Edition.Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo