地盤材料試験結果がばらつく要因の分析例

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書誌事項

タイトル別名
  • An Analysis of Causes of Dispersions in the Results of Geomaterial Tests
  • ジバン ザイリョウ シケン ケッカ ガ バラツク ヨウイン ノ ブンセキレイ

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抄録

In this study, an analysis was made of the causes of variations in the results of Particle size distribution test (sedimentation analysis), liquid limit test, plastic limit test and unconfined compression test in which the coefficient of variation was nearly 5% or higher during proficiency testing of geomaterial tests. The analysis was made based on the results of a questionnaire survey conducted at the same time as the proficiency testing. As a result, it was verified that not only the experience of test engineers but also complying with standards, and checking, inspecting and correcting test apparatuses and measuring instruments are important to the improvement of the accuracy of geomaterial tests. It was also revealed that the maximum and minimum weights measured by a balance scale affect test accuracy.

収録刊行物

  • 材料

    材料 65 (1), 84-89, 2016

    公益社団法人 日本材料学会

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