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The problem of water permeability in dam geology

  • Heitfeld K. H. 
  • Krapp L. 
26e Congrès Géologique International Paris, France, 7–17.07.1980

Summary

For several decades packer tests (LUGEON) have been used as the most important method to check the water permeability of rock masses at dam sites. The report deals with technical difficulties frequently observed during the performance of the test and with possible interpretations of the results. Special attention is paid to deformation and erosion phenomena and to the effects of long-term tests. Furthermore, the importance of packer tests for the assessment of water losses, of foundation water pressures and erosion will be discussed.

Keywords

Rock Mass Test Section Water Permeability Packer Test Borehole Wall 

Le probleme de la permeabilite a l'eau dans la geologie des barrages

Résumé

Depuis plusieurs décades on a utilisé des essais de charge (LUGEON) comme la plus importante méthode pour tester la perméabilité à l'eau des massifs rocheux sur les sites de barrage. Cet article traite des difficultés techniques fréquemment observées durant la mise en œuvre des essais et des interprétations possibles des résultats. On a porté une attention spéciale aux phénomènes de déformation et d'érosion et aux effets des tests à long terme. En outre, on discutera de l'importance des tests de charge pour l'évaluation des pertes en eau, des sous pressions et de l'érosion.

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References

  1. EWERT F. K. (1979): Untersuchungen zu Felsinjektionen, Teil 1. (Rock grouting investigations). Münster. Forsch. Geol. Paläont, 49, 292 pp., Münster.Google Scholar
  2. GILG—GAVARD (1957): Calcul de la perméabilité par des essais d'eau dans les sondages en alluvions. Bull. Tech. de la Suisse Romande, Grenoble.Google Scholar
  3. HEITFELD K.H. (1965): Hydro-und baugeologische Untersuchungen über die Dichtigkeit des Untergrundes an Talsperren des Sauerlandes. (Hydrogeological and engineering geological investigations on permeability of dam foundations in Sauerland, F. R. Germany). Geol. Mitt. 5, H. 1–2, 210 pp., Aachen.Google Scholar
  4. HEITFELD K. H. (1979): Durchlässigkeitsuntersuchungen im Festgestein mittels WD-Testen. (Permeability investigations in solid rock). Mitt. Ing.-u. Hydrogeol., 9, 175–218, Aachen.Google Scholar
  5. KRAPP L. (1979): Gebirgsdurchlässigkeit im Linksrheinischen Schiefergebirge—Bestimmung nach verschiedenen Methoden. (Determination of rock permeability in the W-R henisch Slate Mountains by different methods). Mitt. Ing.-u. Hydrogeol., 9, 313–347, Aachen.Google Scholar
  6. LOUIS C. (1967): Strömungsvorgänge in klüftigen Medien und ihre Wirkung auf die Standsicherheit von Bauwerken und Böschungen im Fels. (Percolation in fissured media and its impact on stability of structures and rock slopes). Thesis Univ. Karlsruhe.Google Scholar
  7. MAAG E. (1941): Methode zur feldmäßigen Bestimmung der Wasserdurchlässigkeit. (Method for in situ water permeability determination). Straße und Verkehr, 19, Solothurn.Google Scholar
  8. MAINI Y. N. T. (1971): In situ Hydraulic Parameters in Jointed Rock—Their Measurement and Interpretation. Ph. D. Thesis Imperial College, London.Google Scholar
  9. MAINI Y. N. T.—NOORISHAD J.—SHARP J. (1972): Theoretical and Field Considerations on the Determination of in situ Hydraulic Parameters in Fractured Rock. Proc. Symp. Perc. Fiss. Rock, T 1-E, 1–8, Stuttgart.Google Scholar
  10. PEARSON R.—MONEY M. S. (1977): Improvements in the Lugeon or Packer Permeability Test. Q. Jl. Engng Geol., 10, 221–239, London.CrossRefGoogle Scholar
  11. RISSLER P. (1978): Determination of the Water Permeability of Jointed Rock. Inst. Found. Eng., Soil Mech., Rock Mech. and Water Ways Constr., RWTH Aachen, 5, Aachen.Google Scholar
  12. SCHETELIG K.—SCHENK V.—HEYBERGER W. (1978): Neues Meßverfahren für die Durchführung von Wasserabpressungen. (A new measuring method for hydraulic testing). Veröff. 3, Nat. Tagung Felsmech., Aachen.Google Scholar
  13. SNOW D.T. (1965): A Parallel Plate Model of Fractured Permeable Media; Ph.D. Thesis, University of California, Berkeley.Google Scholar
  14. WITTKE W.—RISSLER P.—SEMPRICH S. (1972): Räumliche, lineare und turbulente Strömung in klüftigem Fels nach zwei verschiedenen Modellen; (Two models of three-dimensional, linear and turbulent percolation through fissured rock). Proc. Symp. Int. Soc. Rock Mech. T 1-H, 1–18, Stuttgart.Google Scholar

Copyright information

© International Assocaition of Engineering Geology 1981

Authors and Affiliations

  • Heitfeld K. H. 
    • 1
  • Krapp L. 
    • 1
  1. 1.Department of Engineering Geology and HydrogeologyAachen Technical UniversityAachenGermany

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