EXPERIMENTAL STUDY ON EARTHQUAKE-PROOF U-PVC PIPELINE SUBJECTED TO UNEVEN GROUND SETTLEMENT DURING EARTHQUAKES

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  • 地震時地盤不等沈下を受ける耐震性硬質塩化ビニル管路の挙動実験
  • ジシンジ ジバン フトウ チンカ オ ウケル タイシンセイ コウシツ エンカビニル カンロ ノ キョドウ ジッケン

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Abstract

This paper summarizes results of both an experiment for earthquake-proof U-PVC pipeline subjected to uneven ground settlement and its numerical simulation. Through the ground settlement experiment, in which 50cm uneven ground settlement was acted on buried U-PVC pipelines, pipeline deformation and joint expansion behavior were observed. As a result, it was clarified that axial strain of the pipeline was redused due to sliding of the rubber ring type joints and slip-out preventer of the joint worked well. Furthermore, in the numerical simulation based on beam theory, relationship between transient settlement zone and pipeline response was examined.

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