供試体の作製方法が粘性土の湿潤密度に及ぼす影響  [in Japanese] INFLUENCE OF METHOD OF PRREPARATION OF CLAY SPECIMEN ON ITS DENSITY  [in Japanese]

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Abstract

成形可能な粘性土の湿潤密度を求める場合, 供試体の作製方法による成形精度の違いにより, 湿潤密度が異なる可能性がある. そこで本研究では, 質量と長さの測定誤差を吟味した上で, 供試体の形状誤差を検討し, 作製方法が粘性土の湿潤密度に及ぼす影響を明らかにすることを試みた. その結果, (1) 現行試験法に従って最小読取り値0.005cmのノギスにより求めた粘性土の湿潤密度の有効数字はせいぜい3桁である, (2) トリミング法で成形された供試体の形状誤差とチューブ法のそれは同程度であることが判明した.

While determining the bulk density of a clay specimen, there are possibilities that the bulk densities of different specimens differ from each other depending on the method of specimen preparation. One of the reasons for this is degree of perfection during the preparation of specimen. In this paper, the authors try to examine the difference due to errors in measurement and then study the influence of the method of preparation. The major findings are: 1) Although the effective value of bulk density is up to three decimal points, the dimensional measurements are made with a vernier caliper of minimum reading up to only 0.005cm and 2) The shape and size of a specimen prepared by trimming method are more or less similar to those of a specimen prepared by tube method.

Journal

  • Doboku Gakkai Ronbunshu

    Doboku Gakkai Ronbunshu 708, 221-226, 2002-06-21

    Japan Society of Civil Engineers

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Codes

  • NII Article ID (NAID)
    10008850623
  • NII NACSIS-CAT ID (NCID)
    AN10014020
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    02897806
  • NDL Article ID
    6204457
  • NDL Source Classification
    ZN1(科学技術--建設工学・建設業)
  • NDL Call No.
    Z16-6
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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