Behavior of over-cutting area injected by flyash surface-active agent mixture material

Hideki Shimada, T. Kawai, Takashi Sasaoka, K. Matsui, M. Ichinose, S. Fujita, M. Iino, Y. Yoshida

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

Lubrication can effectively reduce the needed thrust if a discrete layer of the lubricant is maintained between the pipe and the excavated soil. The lubricant must be designed to form a layer in the surrounding soil, be pressurized to overcome ground water pressure and stabilize the over-cutting area. Lubricant should fill the complete over-break void to minimize surface settlement. However, it was clarified that for a commercial lubricant to be effective, it is suggested that ingredients such as sodium and potassium be eliminated. As a result, for a lubricant to not lose its function as a support against the overburden pressure of an overcutting area and to enable a reduction in thrust, it is necessary to develop a better quality lubricant which can overcome these problems as soon as possible. From this perspective, a lubricating material comprised of a mixture of the surface-active agent and flyash was developed. In this paper, in order to examine the characteristics and behavior of the flyash surface-active agent mixture developed for use as a lubricant, a fundamental investigation is performed.

本文言語英語
ホスト出版物のタイトルInternational Society for Trenchless Technology - 25th No-Dig International Conference and Exhibition, Roma 07: Mediterranean No-Dig 2007
ページ226-235
ページ数10
出版ステータス出版済み - 2007
イベント25th No-Dig International Conference and Exhibition, Roma 07: Mediterranean No-Dig 2007 - Rome, イタリア
継続期間: 9月 10 20079月 12 2007

その他

その他25th No-Dig International Conference and Exhibition, Roma 07: Mediterranean No-Dig 2007
国/地域イタリア
CityRome
Period9/10/079/12/07

!!!All Science Journal Classification (ASJC) codes

  • 地質学
  • 地球物理学
  • 地盤工学および土木地質学
  • 土木構造工学
  • 機械工学
  • 建築および建設

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