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Investigation of Dynamic Response of Buried Pipelines under Earthquake-Induced Landslide using Physical Model Tests

Hadei, Sajjad | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45141 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Jafarzadeh, Fardin
  7. Abstract:
  8. The purpose of this dissertation is investigation of dynamic behavior of buried pipelines in slopes in landslide. For this purpose four physical models were made on shaking table of Sharif University of Technology. In each of the models some pipes were buried in slope. In these models the pipes were placed in different angles regarding to slope direction. Simulation laws suggested by Iai (1989) were used in these models. Babolsar sand was used for modeling the slopes. Aluminium pipes with outside diameter of 16 millimeters and thickness of 1 millimeter were implemented to model steel pipelines. In this investigation simple supports were used at the end of the pipes, considering the limitation of model size and necessity of lenghthful structure (buried pipeline) modeling. All models were made and tested in dry conditions. Loading condition in every test was similar. Load applied to the models were sinusoidal harmonic with 5Hz frequency. After testing the models it was concluded that if the position of pipe in slope is near to the transverse mode, bottom of the slope will be the most critical place for pipeline passing and if the position of pipe in slope is near to the longitudinal mode, top and crest of slope will be the most critical place for pipeline passing
  9. Keywords:
  10. Buried Pipline ; Slope ; Dynamic Loading ; Landslide ; Shaking Table

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