Geotechnical and Geological Engineering

, Volume 30, Issue 3, pp 581–601 | Cite as

Interaction of a Masonry Dam and the Rock Foundation

  • Walter Wittke
  • Martin Wittke
  • Johannes R. Kiehl
Original paper


The Urft dam is an old German gravity dam located in the Eifel near Cologne. In order to ensure its stability and for adjustment to today’s technical standards rehabilitation works were required. Two inspection galleries were excavated below the storage level by means of smooth blasting. To reduce the porewater pressure acting on the dam’s base and thus to increase the stability of the dam also the drainage system was reconstructed and improved. Because the Urft dam is curved, its load bearing behavior reveals a certain arching effect. In order to take advantage of this arch action the stability proof was carried out by means of three-dimensional analyses according to the FEM. In these analyses the interaction of dam and the foundation rock was accounted for. Explorations, laboratory and in situ testing of the masonry and the foundation rock were carried out and a monitoring program was established. The monitoring results allowed a calibration of the three-dimensional model for stability analyses by means of back analyses. On this basis the final stability proof could be conducted.


Masonry Gravity dam In situ testing Smooth blasting Monitoring Back analysis 


  1. DIN 19700-11 (2004) Stauanlagen—Teil 11: Talsperren (Dam plants—Part 11: dams). Beuth, BerlinGoogle Scholar
  2. Farmer IW (1968) Engineering properties of rocks. Spon, LondonGoogle Scholar
  3. Ladanyi B, Bourbonnais J, Franklin JA, Drozd K, Pahl A, Wittke W, Pinto JL, Charrua-Graca JG, Stephansson O, Szlavin J, Atkinson RK, Panek LA (1987) ISRM suggested method for deformability determination using a flexible dilatometer. Int J Rock Mech Min Sci Geomech Abstr 24(2):123–134CrossRefGoogle Scholar
  4. Loureiro-Pinto J (1981) Determination of the deformability modulus of weak rock masses by means of large flat jacks (LFJ). In: Proceedings of the international symposium on weak rock, TokyoGoogle Scholar
  5. Loureiro-Pinto J (1986) ISRM suggested method for deformability determination using a large flat jack technique. Int J Rock Mech Min Sci Geomech Abstr 23(2):133–140CrossRefGoogle Scholar
  6. Polczyk H, Wittke W, Küpper H-J (1996) Sprengtechnischer Vortrieb eines Kontrollgangs in einer alten Talsperre unter Stau. Taschenbuch für den Tunnelbau 1997. Glückauf, Essen, pp 184–202Google Scholar
  7. Rißler P (1984) Empfehlung Nr. 9 DGEG: Wasserdruckversuch im Fels. Bautechnik 61:112–117Google Scholar
  8. Rocha M, da Silva JN (1970) A new method for the determination of deformability in rock masses. In: Proceedings of the 2nd Congress on ISRM, vol 1, BelgradeGoogle Scholar
  9. Wittke W (1990) Rock mechanics—theory and applications with case histories. Springer, Berlin, Heidelberg, New York, TokyoGoogle Scholar
  10. Wittke W (2000) Stability analysis for tunnels—fundamentals. Geotechnical Engineering in Research and Practice, WBI-PRINT 4. Glückauf, EssenGoogle Scholar
  11. Wittke W, Kiehl JR (2000) Ausbreitung sprengbedingter Erschütterungen und deren Auswirkungen auf Bauwerke. Taschenbuch für den Tunnelbau 2001. Glückauf, Essen, 41-64Google Scholar
  12. Wittke W, Polczyk H (1999) The Urft masonry dam. Three-dimensional stability analyses, monitoring and comparison of the results. Annual meeting, ICOLD, AntalyaGoogle Scholar
  13. Wittke W, Schröder D (2000) Upgrading the stability of the Eder masonry dam with prestressed vertical anchors. Annual meeting, ICOLD, BeijingGoogle Scholar
  14. Wittke W, Schröder D (2003) Upgrading the stability of the Diemel masonry dam. Annual meeting, ICOLD, MontrealGoogle Scholar
  15. Wittke W, Schröder D, Polczyk H, Wittke M (2002) Upgrading the stability of three masonry dams in different ways. In: Proceedings of the international congress on conservation and rehabilitation of dams, MadridGoogle Scholar
  16. Wittke W, Druffel R, Erichsen C, Gattermann J, Kiehl JR, Schmitt D, Tegelkamp M, Wittke M, Wittke-Gattermann P, Wittke-Schmitt B (2006) Statik und Konstruktion maschineller Tunnelvortriebe. Geotechnik in Forschung und Praxis, WBI-PRINT 6, VGE, Essen, 2006 (free download of the English version “Stability analysis and design for mechanized tunneling” available at

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Walter Wittke
    • 1
  • Martin Wittke
    • 1
  • Johannes R. Kiehl
    • 1
  1. 1.WBI Professor Dr.-Ing. W. Wittke Consulting Engineers for Foundation Engineering and Construction in RockAachenGermany

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