軽量人工地盤の実大盛土実験と沈下予測

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タイトル別名
  • ケイリョウ ジンコウ ジバン ノ ジツダイ モリド ジッケン ト チンカ ヨソ
  • In-situ Tests and Settlement Prediction for Filling Work on Soft Clay Grouhd Substituted with Light Weight Material

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Light weight substitution is one of the most recommendable countermeasures for filling work on soft clay ground. In-site tests of filling work on soft clay ground substituted with light weight material were carried out in the Saga plain, Japan. Light weight material is consist of the Ariake clay, lime and expanded polystyrol beads and its wet density is 1.1g/cm3. This paper first compares the observed behavior of in-site tests and the calculated behavior of a stresscoupling finite element analysis adopting an elasto-viscoplastic model as the soft Ariake clay ground. Secondly, the demanded parameters to estimate their behavior are determined so as to minimize the discrepancies in the estimation. Using these parameters a prediction model is constructed, and the numerical simulation are carried out varying some factors affecting on displacement of the substituted ground. This paper's final aim is a proposal of simple prediction formulae of the settlement and lateral displacement of the substituted ground, withdrawn the results of the numerical simulation.

長崎大学工学部研究報告, 23(41), pp.179-186; 1993

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