Behavior of Buried RC Pipe Loaded Locally from Inner Surface

DOI Web Site Open Access

Bibliographic Information

Other Title
  • 管内面に局所荷重を作用した際のRC管の地盤内挙動評価
  • カンナイメン ニ キョクショ カジュウ オ サヨウ シタ サイ ノ RCカン ノ ジバン ナイ キョドウ ヒョウカ

Search this article

Abstract

<p>Internal loading method (ILM) was applied to the buried and the unburied RC pipes, in order to evaluate the effect of restraint by the earth pressure for cross-sectional stiffness of the pipes. As a result, the relationship between load and deformation of the buried RC pipe had strong positive correlation. It was confirmed to be same as the case of earth pressure didn't act. It was verified that ILM deformed the cross section of the buried RC pipe into ellipse and accrued local bulges at loading points, considering vertical and horizontal earth pressure and circumferential strain distributions on outside of the pipe. The circumferential strains at top and bottom on the outside of buried RC pipe at a certain deformation (20μm) increased due to the effect of restraint by earth pressure. Finally, it was shown that the stress from cross-sections of an RC pipe (diameter: 400 mm) was transmitted to less than 40 cm along the longitudinal direction.</p>

Journal

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top