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Settlement Evaluation of Earth Dams During Construction, First Impounding and Operation Periods by Monitoring Results and Numerical Modeling
(Shahr chay & Zola dam; IRAN)

Naghilo, Akbar | 2010

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40647 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Jafarzadeh, Fardin
  7. Abstract:
  8. Monitoring has a high level of importance in the predicting and controlling of dam behavior. At all large dams, the dam performance can be analyzed through the installation appropriate devices during dam construction, impounding and operation periods. The main purpose of monitoring and instrumenting is to investigate variations and safety of dam on the basis of long-term data observations. This paper is aimed at evaluating the behavior of earth dams from the aspect of deformation and settlement during dam construction, impounding and operation periods. As a case study, dams of Shahr chay & Zola, IRAN, have been studied. For this purpose, the obtained results from modeling, deformation and settlement situation have been analyzed and compared with actually measured deformations resulting from a continuous geodetic monitoring record of the dam behavior with a numerical back analysis. The numerical modeling assumed 2D plane-strain conditions using FLAC Software. This software is capable to analyze simultaneously water flow and deformation for rock and soil by using linear and nonlinear behavior models. The numerical method employed in this study was explicit finite difference method which had a proper agreement with linear behaviors and analysis of time function. The results achieved from instrumentation revealed the acceptable deformation of the dams of Shahr chay & Zola, during dam construction, impounding and operation periods. The results of numeral analysis were consistent with reality and indicted the appropriate performance of dams during dam construction, impounding and operation periods
  9. Keywords:
  10. Earth Dam ; Stress ; Deformation ; Monitoring ; Clay Core

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