Technical note: Stability of a levee made of bottom sediments from a dam reservoir

• Autorzy: Koś K. , Zawisza E.

Identyfikatory

DOI

10.2478/sgem-2014-0037

• Języki publikacji: EN

Abstrakty

EN

Stability analysis of a levee made of the bottom sediments from Czorsztyn-Niedzica Reservoir is presented in the paper. These sediments were classified as silty sands and, based on the authors’ own research, their geotechnical parameters were beneficial, so the possibility of using this material for the hydraulic embankments was considered. Stability and filtration calculations were carried out for a levee that had the same top width – 3 m, slope inclinations 1:2 and different heights: 4, 6 and 8 m. Two methods were used: analytical and numerical. Calculations were carried out without and with a steady and unsteady seepage filtration. Based on the analysis carried out it was stated that the levee made of the bottom sediments is stable even at the height of 8.0 m, although because of the seepage on the downstream side it is recommended to use a drainage at the toe of the slope.

Słowa kluczowe

EN

bottom sediments; hydraulic embankments; stability

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2014
• Tom: Vol. 36, nr 4
• Strony: 65--70
• Opis fizyczny: Bibliogr. 7 poz., tab., rys.

Twórcy

autor

Koś K.

• Department of Water Engineering and Geotechnics, Faculty of Environmental Engineering and Land Surveying, Agricultural University in Cracow, 21 Mickiewicza Street, 30-059 Cracow, Poland

autor

Zawisza E.

• Department of Water Engineering and Geotechnics, Faculty of Environmental Engineering and Land Surveying, Agricultural University in Cracow, 21 Mickiewicza Street, 30-059 Cracow, Poland

Bibliografia

• [1] GRIFFITHS D.V., LANE P.A., Slope stability analysis by finite elements, Géotechnique, 1999, 49/3, 387–403.
• [2] GWÓŹDŹ R., Parameters of cohesive sediments from Rożnowskie Lake in the aspect of their geotechnical usage, Doctoral thesis, Cracow University of Technology, 2007, (in Polish).
• [3] KOŚ K., Charakterystyka geotechniczna osadów dennych cofki Zbiornika Czorsztyńskiego i możliwości ich wykorzystania do celów budownictwa ziemnego. (Geotechnical characteristic of bottom sediments from the backwater of Czorsztyn-Niedzica Reservoir and possibilities of their usage for earthwork purposes.) Inżynieria Morska i Geotechnika, 2013, No. 2/2013, (with English summary).
• [4] PN-EN ISO 14688-2:2004 Geotechnical tests. Soil classification.
• [5] Rozporządzenie Ministra Środowiska z dnia 20 kwietnia 2007 r. w sprawie warunków technicznych, jakim powinny odpowiadać budowle hydrotechniczne i ich usytuowanie, (Minister of Environment Regulation on technical conditions that hydrotechnical constructions should fulfill), Journal of Laws, 2007, No. 86, item 579.
• [6] TRUTY A., On certain classes of mixed and stabilized mixed finite element formulations for single and two-phase geomaterials, Zeszyty Naukowe, Inżynieria Środowiska, 2002, No. 48.
• [7] Z_SOIL.PC. Theoretical Manual, ZACE Services, Ltd., Lozanna, 1998.