EARTH STRUCTURES STABILITY UNDER RAPID DRAWDOWN CONDITIONS

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Architecture, Civil Engineering, Environment

Silesian University of Technology

Subject: Architecture , Civil Engineering , Engineering, Environmental

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ISSN: 1899-0142

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VOLUME 10 , ISSUE 1 (March 2017) > List of articles

EARTH STRUCTURES STABILITY UNDER RAPID DRAWDOWN CONDITIONS

Zofia ZIĘBA / Michał MOLENDA / Kinga WITEK

Keywords :  GEO5 software, Internal erosion, Levee, Pore pressure dissipation, Rapid drawdown, Slope stability

Citation Information : Architecture, Civil Engineering, Environment. Volume 10, Issue 1, Pages 0-0, DOI: https://doi.org/10.21307/acee-2017-009

License : (BY-NC-ND 4.0)

Received Date : 29-April-2016 / Accepted: 14-February-2017 / Published Online: 27-August-2018

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ABSTRACT

The paper presents the slope stability analysis of the unmodernised section of the Groszowice separation levee in the condition of water level changes, particularly after rapid drawdown. Based on soils field and laboratory tests, the stability analysis of the construction was conducted with GEO5 software. For the upper levee, the utilisation degree of slopes resistance was determined according to the Eurocode 7. Calculations were conducted for normal and high water level, as well as after rapid drawdown. The analysis was carried out with the use of five most commonly applied methods. The results have shown that at normal and high water level, the structure was stable. However, it does not correspond with its existing damages. The loss of stability was proved only under rapid drawdown conditions. Additionally, for the central part of the separation levee, the filtration curve position was conducted with the use of the Finite Elements Method (FEM). The water seepage on the slope above normal water level explains the suffosion displacement of soil particles that occurs due to damaged slope sealing and drainage.

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REFERENCES

[1] Vaníček I., Vaníček M.; Earth Structures in Transport, Water and Environmental Engineering. Springer, 2008

[2] Parylak K., Wolski W.; Oceny stanu technicznego budowli piętrzących w Polsce w świetle standardów unijnych (Technical State Assessment of Dams in Poland with Reference to EU Standards). Awarie Budowlane XXIII Konferencja Naukowo-Techniczna, Zapobieganie Diagnostyka Naprawy Rekonstrukcje, 2007; p.459-464 (in Polish)

[3] Leeder M. R.; Sedimentology and Sedimentary Basins. Blackwell Science Ltd., 1999

[4] Knappett J. A., Craig R. F.; Craig’a Soil Mechanics. Spon Press is an imprint of the Taylor & Francis Group, 2012

[5] Bishop A. W., Bjerrum L.; The Relevance of the triaxial test to the solution of stability problems. Norwegian Geotechnical Institute, 1960

[6] Berilgen M. M.; Investigation of stability of slopes under drawdown conditions. Computers and Geotechnics, Vol.34, No.2, 2007, p.81-91

[7] Pinyol N. M., Alonso E., Olivella S.; Rapid drawdown in slopes and embankments. Water Resources Research, Vol.44, No.5, 2008, p.1-22

[8] Parylak K., Zięba Z., Witek K.; Problem interpretacji i doboru parametrów gruntów w prognozowaniu stateczności zapory ziemnej (Problem of interpretation and selection of soil parameters in predicting earth dams stability). Inżynieria Morska i Geotechnika, Vol.36, No.3, 2015; p.300-304 (in Polish)

[9] Kostecki S., Machajski J., Rędowicz W.; Okresowa 5-cio letnia ocena stanu technicznego stopnia wodnego Groszowice na rzece Odrze (Periodic 5-year technical condition assessment of Groszowice barrage on the Odra River). Technical report, Wrocław, 2010 (in Polish)

[10] PN-EN 1997-2:2007 Geotechnical design. General rules

[11] PN-EN 1997-2:2009 Geotechnical design – Part 2: Ground investigation and testing

[12] PN-EN ISO 14688-2:2006 Geotechnical investigation and testing – Identification and classification of soil – Part 2: Principles for a classification

[13] Head K. H.; Manual of Soil Laboratory Testing, Volume 2, Permeability, Shear Strength and Compressibility Test. ELE International Ltd., 1982

[14] Head K. H.; Manual of Soil Laboratory Testing, Volume 3, Effective Stress Tests. ELE International Ltd., 1986

[15] Cała M., Flisiak J.; Analiza stateczności skarp i zboczy w świetle obliczeń analitycznych i numerycznych (Slope stability analysis in the view of analytical and numerical calculations). Akademia Górniczo-Hutnicza, Cracow, 2011 (in Polish)

[16] Matthews C., Farook Z., Helm P.; Slope stability analysis – limit equilibrium or the finite element method? Technical paper. Ground Engineering, 2014; p.22-28

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