Advanced search
1 file | 2.03 MB Add to list

Geological challenges in constructing the proposed Geba dam site, northern Ethiopia

Author
Organization
Abstract
It is proposed to construct a dam across the Geba River, Ethiopia. The paper reports the engineering geological investigations undertaken, including mapping, discontinuity surveys, core drilling, water absorption testing and sampling for laboratory tests. The complexity of the site, with limestones and interbedded limestone-shale horizons, is indicated by the variability of the RQD and Lugeon values. Of the 63 tests undertaken, some two-thirds had Lugeon values implying grouting was necessary. Following removal and replacement of the alluvial deposits in the central area, a grout curtain including two to three rows of grouting holes was recommended to a depth of 100 m for the left abutment, 35 m for the central foundation and 60 m for the right abutment.
Keywords
TURKEY, BASIN, KARST, RECHARGE, TESTS, HYDRAULIC CONDUCTIVITY, PERMEABILITY, Northern Ethiopia, Lugeon test, Geba River, Dam site, Engineering geological mapping

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 2.03 MB

Citation

Please use this url to cite or link to this publication:

MLA
Berhane, Gebremedhin, and Kristine Walraevens. “Geological Challenges in Constructing the Proposed Geba Dam Site, Northern Ethiopia.” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, vol. 72, no. 3–4, 2013, pp. 339–52, doi:10.1007/s10064-013-0480-9.
APA
Berhane, G., & Walraevens, K. (2013). Geological challenges in constructing the proposed Geba dam site, northern Ethiopia. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 72(3–4), 339–352. https://doi.org/10.1007/s10064-013-0480-9
Chicago author-date
Berhane, Gebremedhin, and Kristine Walraevens. 2013. “Geological Challenges in Constructing the Proposed Geba Dam Site, Northern Ethiopia.” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 72 (3–4): 339–52. https://doi.org/10.1007/s10064-013-0480-9.
Chicago author-date (all authors)
Berhane, Gebremedhin, and Kristine Walraevens. 2013. “Geological Challenges in Constructing the Proposed Geba Dam Site, Northern Ethiopia.” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 72 (3–4): 339–352. doi:10.1007/s10064-013-0480-9.
Vancouver
1.
Berhane G, Walraevens K. Geological challenges in constructing the proposed Geba dam site, northern Ethiopia. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT. 2013;72(3–4):339–52.
IEEE
[1]
G. Berhane and K. Walraevens, “Geological challenges in constructing the proposed Geba dam site, northern Ethiopia,” BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, vol. 72, no. 3–4, pp. 339–352, 2013.
@article{4090537,
  abstract     = {{It is proposed to construct a dam across the Geba River, Ethiopia. The paper reports the engineering geological investigations undertaken, including mapping, discontinuity surveys, core drilling, water absorption testing and sampling for laboratory tests. The complexity of the site, with limestones and interbedded limestone-shale horizons, is indicated by the variability of the RQD and Lugeon values. Of the 63 tests undertaken, some two-thirds had Lugeon values implying grouting was necessary. Following removal and replacement of the alluvial deposits in the central area, a grout curtain including two to three rows of grouting holes was recommended to a depth of 100 m for the left abutment, 35 m for the central foundation and 60 m for the right abutment.}},
  author       = {{Berhane, Gebremedhin and Walraevens, Kristine}},
  issn         = {{1435-9529}},
  journal      = {{BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT}},
  keywords     = {{TURKEY,BASIN,KARST,RECHARGE,TESTS,HYDRAULIC CONDUCTIVITY,PERMEABILITY,Northern Ethiopia,Lugeon test,Geba River,Dam site,Engineering geological mapping}},
  language     = {{eng}},
  number       = {{3-4}},
  pages        = {{339--352}},
  title        = {{Geological challenges in constructing the proposed Geba dam site, northern Ethiopia}},
  url          = {{http://doi.org/10.1007/s10064-013-0480-9}},
  volume       = {{72}},
  year         = {{2013}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: