Application of electrical resistivity imaging and self-potential methods to determine leakage pathways in an earth fill dam


YILMAZ S. , Köksoy M.

PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI, cilt.23, ss.799-803, 2017 (ESCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 23 Konu: 6
  • Basım Tarihi: 2017
  • Doi Numarası: 10.5505/pajes.2016.60862
  • Dergi Adı: PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI
  • Sayfa Sayıları: ss.799-803

Özet

The most common problem in earth dams is abnormal seepage or excessive leakage after the foundation of the dam. When water started to fill the reservoir in Akdegirmen dam (Afyonkarahisar. Turkey) designed as a zoned earth dam, the seepage developed at the base of the spillway and the downstream of the right bank. The leakage at this dam was investigated by using electrical resistivity and self-potential measurements. The dipole-dipole electrode array with unit electrode spacing of 10 m was used for resistivity imaging survey. An algorithm based on robust inversion technique was used to invert electrical resistivity data. The self-potential data were collected by fixed reference method and interpreted qualitatively by graphs. The investigation results revealed the distribution of strata and the leakage paths along the downstream of the right bank.