THE CHANGE IN MICROSTRUCTURE OF PLEISTOCENE CLAYS DUE TO ONE DIMENSIONAL CONSOLIDATION

• RITO Fusao

  社団法人 土木学会 応用地質 (株) 技術本部

• OHMUKAI Naoki

  社団法人 土木学会 応用地質 (株) コアラボ

• TANAKA Hiroyuki

  社団法人 土木学会 独立行政法人 港湾空港技術研究所

• TANAKA Masanori

  社団法人 土木学会 独立行政法人 港湾空港技術研究所

Bibliographic Information

Other Title

• 洪積粘土の圧密に伴う微視構造の変化
• コウセキ ネンド ノ アツミツ ニ トモナウ ビシ コウゾウ ノ ヘンカ

Abstract

The difference in microstructure of two Pleistocene clays is studied. Osaka bay clay and Kyoto clay consist of the same minerals, belonging to the Osaka Group (Osaka bay clay is Ma11, and Kyoto clay is Ma4). According to the series of observation by SEM, it is known that the content of Diatom of Osaka bay clay is much larger than that of Kyoto clay. The change of micro pore size distribution due to one-dimensional consolidation was studied by a mercury intrusion porosimeter. The pore size distribution of Kyoto clay changed sensitively with the increment of consolidation pressure, however, in the case of Osaka bay clay, the change was not so clear as Kyoto clay. In the final consolidation pressure of 10MPa, the pore size of Kyoto clay was smaller than 0.1μm, while that of Osaka bay clay ranged between 0.01μm and 0.3μm. The reason of this difference is related with the content of microfossils such as Diatoms.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2002 (701), 331-341, 2002-03-21

  Japan Society of Civil Engineers

Keywords

• pleistocene clay
• microstructure
• pore size distribution
• scanning electron microscopic
• consolidation

Details

• CRID: 1390282680578975360
• NII Article ID: 10008001874
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2002.701_331
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 6100884
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6100884
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2002/701/2002_701_331/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed