遮水シートの水圧膨張変形に関するスケール効果と応力ひずみ挙動の評価

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  • 狩野 真吾
    国際ジオシンセティックス学会日本支部 国土技術政策総合研究所 沿岸防災研究室
  • 小田 勝也
    国土技術政策総合研究所 沿岸防災研究室
  • 近藤 三樹郎
    国際ジオシンセティックス学会日本支部 土木シート技術協会 三菱化学MKV株式会社

書誌事項

タイトル別名
  • SCALE EFFECT AND THE STRESS STRAIN BEHAVIOR OF WATERPROOF SHEETS IN A HYDRAULIC BURSTING TEST

説明

The hydraulic bursting tests for PVC sheets applied at a seepage control structure in a coastal confined waste disposal site were conducted to evaluate the deformation and strength characteristics of sheets laid on an empty space. In the test, two types of hydraulic pressure vessels which have different radii were used, and we found that the maximum and breaking pressures varied with the vessels. This result means that the pressure-displacement curve has a tendency of scaling effect. On the contrary, the relationship between stress which was calculated along the attachment and strain has little effect of scaling, and the stress-strain curve at the vertical point of ballooning sheet was independent with the vessels

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