Performance of Buried Gas Distribution Pipelines Subjected to Reverse Fault Movement |
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Authors: | Himan Hojat Jalali Fayaz Rahimzadeh Rofooei Nader Khajeh Ahmad Attari |
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Institution: | 1. Department of Civil Engineering, University of Texas at Arlington, Arlington, TX, USA;2. Department of Civil Engineering, Sharif University of Technology, Tehran, Iran;3. Department of Structural Engineering, Building and Housing Research Center (BHRC), Tehran, Iran |
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Abstract: | In the current work, the results of full-scale laboratory testing of 114.3 and 168.3 mm in diameter steel gas distribution pipes buried at different depths and in two different soil types under a reverse fault offset of 0.6 m are presented and discussed in terms of longitudinal strain distribution, pipe deformation, and cross-section distortion. Results show that the pipe deformation and accordingly its failure mode, and soil failure planes change with increasing burial depth. It was also found that severe cross-section distortion occurs at about 2.3 times the strain limit for onset of wrinkling suggested by various guidelines. |
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Keywords: | Buried Pipe Reverse Faulting Full-scale Experiment BurialDepth-to-diameter Ratio Diameter-to-thickness Ratio Beam-mode Buckling Local Buckling |
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