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Behavior of the entrapped air in compacted soil and its effects on soil mechanical properties

Research Project

Project/Area Number 19580274
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Irrigation, drainage and rural engineering/Rural planning
Research InstitutionIwate University

Principal Investigator

KOGA Kiyoshi  Iwate University, 農学部, 教授 (70091642)

Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords地盤工学 / 超精密測定 / 土砂災害 / 土壌圏現象 / モデル化 / 締固め土 / 封入空気 / 間隙空気圧 / 間隙空気体積 / 非破壊測定 / 圧縮 / 溶解 / 測定法
Research Abstract

Soil compaction is an important work when constructing earth structures. The entrapped air in compacted soil has a high pressure just after the compaction and affects the pressure of water and other mechanical properties of the soil. In this study change in water pressure which is caused by entrapped air pressure was observed. A method which determines the pressure and the volume of the entrapped air was devised. It was revealed that the air pressure is higher than the water pressure a little. Based on such a fact, it will be possible to develop a model and analyzing method for a phenomenon that water is forced out from compacted soil.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report

Research Products

(7 results)

All 2009 2008 2007

All Presentation (7 results)

  • [Presentation] 2段加圧法による締固め土の封入空気の圧力・体積測定(3)2009

    • Author(s)
      梅田直人, 古賀潔, 笠原亜由美, 小関邦彦
    • Organizer
      農業農村工学会東北支部
    • Place of Presentation
      青森市ラ・プラス青い森
    • Year and Date
      2009-10-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気の圧力・体積測定(2)2009

    • Author(s)
      梅田直人, 坂本浩貴, 古賀潔
    • Organizer
      農業農村工学会
    • Place of Presentation
      つくば市, 筑波大学
    • Year and Date
      2009-08-05
    • Related Report
      2009 Final Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気の圧力・体積測定(2)2009

    • Author(s)
      梅田直人, 坂本浩貴, 古賀潔
    • Organizer
      農業農村工学会
    • Place of Presentation
      つくば市筑波大学
    • Year and Date
      2009-08-05
    • Related Report
      2009 Annual Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気の圧力・体積測定2008

    • Author(s)
      坂本浩貴, 古賀 潔, 梅田直人
    • Organizer
      農業農村工学会
    • Place of Presentation
      秋田市, 秋田県立大学
    • Year and Date
      2008-08-26
    • Related Report
      2009 Final Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気の圧力・体積測定2008

    • Author(s)
      坂本浩貴, 古賀潔, 梅田直人
    • Organizer
      農業農村工学会
    • Place of Presentation
      秋田市秋田県立大学
    • Year and Date
      2008-08-26
    • Related Report
      2008 Annual Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気圧測定2007

    • Author(s)
      坂本浩貴, 古賀 潔, 梅田直人
    • Organizer
      農業農村工学会東北支部
    • Place of Presentation
      福島市, 福島テルサ
    • Year and Date
      2007-10-31
    • Related Report
      2009 Final Research Report
  • [Presentation] 2段加圧法による締固め土の封入空気圧測定2007

    • Author(s)
      坂本浩貴, 古賀 潔, 梅田直人
    • Organizer
      農業農村工学会東北支部
    • Place of Presentation
      福島市福島テルサ
    • Year and Date
      2007-10-31
    • Related Report
      2007 Annual Research Report

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Published: 2007-03-31   Modified: 2016-04-21  

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