Advertisement

A preliminary design approach for guledar irrigation dam project

  • A. Özsan
  • C. Karpuz
Article

Abstract

This paper describes the results of engineering geological and rock mechanics studies carried out at the Güledar irrigation dam project. Project is designed to regulate the drainage and to irrigate the agricultural areas. The dam site is located within Güledar Sirkeli formations composed of sandstone, limestone and diabase. Studies maintained both at field and laboratory. Field studies included geological mapping, core drilling, sampling for laboratory testing, pressurized water tests, and intensive discontinuity surveying. Some physical and mechanical properties were determined at laboratory. The rock mass qualities of rock units were determined, and described as poor to fair quality. The corresponding Hoek and Brown failure envelopes have been drawn and failure equations have been suggested for stability analysis of dam foundation, slope stability and diversion tunnels for each rock unit.

Keywords

Sandstone Uniaxial Compressive Strength Triaxial Test Rock Unit Rock Mass Rate 

Étude d'avant-projet du barrage de guledar, turquie

Résumé

L'article résume les études géotechniques et de mécanique des roches réalisées sur le site du barrage de Güledar, destiné à l'irrigation et à la régulation du drainage de terres agricoles. Il sé situe dans des formations constituées de grès, calcaire et diabase. Les études de terrain ont compris: la cartographie géologique, des sondages carottes, l'échantillonnage pour essais de laboratoire des essais d'eau sous pression et un relevé détaillé des discontinuités. Quelques propriétés physiques et mécaniques ont été mesurées en laboratoire. Les masses rocheuses ont été classées en fonction de leur «qualité». Les analyses de stabilité de la fondation du barrage, des pentes et des tunnels de dérivation ont été effectuées pour chaque unité rocheuse par la méthode de Hoek et Brown.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. ANON, 1977: The Description of Rock Masses for Engineering Purposes: Q.JI.Eng. Geol. 10, pp. 355–388.CrossRefGoogle Scholar
  2. BARTON N., LIEN R. and LUNDE J., 1974: Engineering Classification of Rock Masses for the Design of Tunnel Support. Rock Mechanics, 6, No 4, pp. 183–236.CrossRefGoogle Scholar
  3. BIENIAWSKI Z.T., 1974: Geomechanics Classification of Rock Masses and It's Application in Tunneling: Proc. Third international Congress on Rock Mechanics, ISRM, Denver, 11 A, pp. 27–32.Google Scholar
  4. HOEK E. and BROWN E.T., 1980: Underground Excavations in Rock: The Institution of Mining and Metallurgy, 44 Portland Place, London W1, England.Google Scholar
  5. ÖZSAN A., 1993: Geological Studies at Güledar Dam Site: (In Turkish), Geological Engineering Magazine (will be published).Google Scholar
  6. ISRM 1987: Suggested Methods for the Quantitative Description of Discontinuities in Rock Masses: Int. J. Rock Mech. Min. Sci. and Geomech. Abstr. 15, pp. 319–368.Google Scholar

Copyright information

© International Association of Engineering Geology 1995

Authors and Affiliations

  • A. Özsan
    • 1
  • C. Karpuz
    • 2
  1. 1.Faculty of Science, Geological Engineering DepartmentUniversity of AnkaraAnkaraTürkiye
  2. 2.Mining Engineering DepartmentMiddle East Technical UniversityAnkaraTürkiye

Personalised recommendations