• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of simple and compact in-situ testing system measurement in unsaturated soils

Research Project

Project/Area Number 15360253
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geotechnical engineering
Research InstitutionOkayama University

Principal Investigator

TAKESHITA Yuji  OKAYAMA University, Graduate School of Environmental Science, Associate Professor, 大学院・環境学研究科, 助教授 (90188178)

Co-Investigator(Kenkyū-buntansha) MORII Toshihiro  Niigata University, Faculty of Agriculture, Professor, 農学部, 教授 (30231640)
KAMIYA Koji  Gifu University, Collaborative Center for Academy/Industry/Government, Associate Professor, 産官学融合センター, 助教授 (50252119)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥10,800,000 (Direct Cost: ¥10,800,000)
Fiscal Year 2005: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2004: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2003: ¥6,100,000 (Direct Cost: ¥6,100,000)
Keywordsnon destructive testing / in situ test / unsaturated soils / ground penetrating radar / permeability test / saturated-unsaturated soil hydraulic properties / 不飽和土
Research Abstract

It is well noticed that in-situ measurement and evaluation of saturated-unsaturated soil hydraulic properties is essential to practical and accurate prediction of water movement in soil such as natural slope, embankment, landfill and agricultural field.
In this research, firstly a fast, simple and nondestructive procedure to measure near-surface soil water content profiles in unsaturated sandy soils is proposed. Surface ground-penetrating radar (GPR) system is employed to estimate the average soil water content in the survey region as a function of the soil dielectric constant measured by electromagnetic wave velocities. GPR has a couple of advantages over the intrusive soil moisture sensors. GPR system offers a simple approach for in-situ determination of soil water content and a completely non-intrusive measurement. GPR may be a suitable for low-cost mapping of soil water content profiles in large sample volume.
Secondly, a new field experimental method of determining field-saturated and unsaturated hydraulic conductivity continuously in the near surface of unsaturated soils is proposed. In this method, a ponded single-ring infiltrometer technique, such as the Guelph Pressure Infiltrometer (GPI) method has been investigated based on the field and numerical experiments in our study. The GPI method is performed to determine the field-saturated hydraulic conductivity. The instantaneous profile method with the unit gradient assumption was applied to determine unsaturated hydraulic conductivity as a function of volumetric water content during drainage period. The vertical soil moisture profiles were measured by using a portable device for collecting soil water content information from multiple depths. The advantage of the proposed method is that it allows measurement of hydraulic conductivity of the unsaturated soils by quite simple in-situ permeability test data. The utility of our proposed method is demonstrated by using numerical models.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (37 results)

All 2006 2005 2004 2003 Other

All Journal Article (31 results) Publications (6 results)

  • [Journal Article] 水分計測データを用いた現場飽和・不飽和透水係数の原位置透水試験の提案2006

    • Author(s)
      竹下祐二
    • Journal Title

      41回地盤工学研究発表会平成17年度発表講演集(発表予定)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In-situ permeability test for measuring filed-saturated and unsaturated hydraulic conductivity by using soil moisture measurements.2006

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 41^<th> JGS Annual Meeting (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 水分計測データを用いた現場飽和・不飽和透水係数の原位置透水試験の提案2006

    • Author(s)
      竹下祐二
    • Journal Title

      41回地盤工学研究発表会平成17年度発表講演集 (発表予定)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 地中レーダを用いた浅層地盤における水分分布の原位置計測2005

    • Author(s)
      竹下祐二
    • Journal Title

      40回地盤工学研究発表会平成17年度発表講演集

      Pages: 1255-1256

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Field-scale estimation of near-surface water content using ground-penetrating radar.2005

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 40^<th> JGS Annual Meeting

      Pages: 1255-1256

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Measurement of groundwater behavior in sandy soils using surface ground penetrating radar2004

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 10th international conference on Ground Penetrating Radar

      Pages: 517-520

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Permeability of sand sediment soil determined by the pressure infiltrometer test2004

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings ISC-2 on Geotechnical and Geophysical Site Characterization Vol.1

      Pages: 749-755

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 河川堤防における非破壊地盤調査方法に関する検討例2004

    • Author(s)
      1竹下祐二
    • Journal Title

      39回地盤工学研究発表会平成16年度発表講演集

      Pages: 1231-1232

    • NAID

      130004621839

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Consideration of Non-destructive Testing of River Levee by Thermal Infrared Camera2004

    • Author(s)
      K.Kamiya
    • Journal Title

      39回地盤工学研究発表会平成16年度発表講演集

      Pages: 1233-1234

    • NAID

      130004621840

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] 内部排水法を利用した土の不飽和透水係数の原位置測定2004

    • Author(s)
      森井俊広
    • Journal Title

      39回地紅学研究発表会平成16年度発表講演集

      Pages: 1227-1228

    • NAID

      130004621836

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Measurement of groundwater behavior in sandy soils using surface ground penetrating radar.2004

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 10th international conference on Ground Penetrating Radar

      Pages: 517-520

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Permeability of sand sediment soil determined by the pressure infiltrometer test.2004

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings ISC-2 on Geotechnical and Geophysical Site Characterization Vol.1

      Pages: 749-755

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Consideration of non-destructive testing of river levee by using Ground-penetrating radar.2004

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 39^<th> JGS Annual Meeting

      Pages: 1231-1232

    • NAID

      130004621839

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In-situ determination of unsaturated hydraulic conductivity of soil based on internal drainage method.2004

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the 39^<th> JGS Annual Meeting

      Pages: 1227-1228

    • NAID

      130004621836

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Consideration of Non-destructive Testing of River Levee by Thermal Infrared Camera.2004

    • Author(s)
      K.Kamiya
    • Journal Title

      Proceedings of the 39^<th> JGS Annual Meeting

      Pages: 1233-1234

    • NAID

      130004621840

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Permeability of sand sediment soil determined by the pressure infiltrometer test2004

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings ISC-2 on Geotechnical and Geophysical Site Characterization 1

      Pages: 749-755

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Site Characterization of Sand Sediment Soil by Using In-situ Permeability Test2004

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the 15 Southeast Asian Geotechnical Conference 1

      Pages: 127-132

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 河川堤防における非破壊地盤調査方法に関する検討例2004

    • Author(s)
      竹下祐二
    • Journal Title

      39回地盤工学研究発表会平成16年度発表講演集

      Pages: 1231-1232

    • NAID

      130004621839

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 内部排水法を利用した土の不飽和透水係数の原位置測定2004

    • Author(s)
      森井俊広
    • Journal Title

      39回地盤工学研究発表会平成16年度発表講演集

      Pages: 1227-1228

    • NAID

      130004621836

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Field measurement of soil water content in a sandy soil using ground-penetrating radar2003

    • Author(s)
      IY.Takeshita
    • Journal Title

      Proceedings of the Asian Conference on Unsaturated Soils

      Pages: 365-368

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In-situ measurement and evaluation of soil permeability in sand sediment2003

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the Asian Conference on Unsaturated Soils

      Pages: 107-112

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Practical determination of soil permeability of sand sediment that includes grave and cobbles2003

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the international conference on Problematic soils

      Pages: 393-400

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Practical determination of hydraulic conductivity of sand sediment soils2003

    • Author(s)
      T.Morii
    • Journal Title

      Journal of Rainwater Catchment Systems Vol.9, No1

      Pages: 1-6

    • NAID

      110002667609

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 地中レーダによる河川堤防内の水分動態の非破壊計測方法2003

    • Author(s)
      竹下祐二
    • Journal Title

      木学会第58回年次学術講演概要集

      Pages: 839-840

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 土の飽和・不飽和水分特性の原位置測定2003

    • Author(s)
      森井俊広
    • Journal Title

      38回地盤工学研究発表会平成15年度発表講演集

      Pages: 601-602

    • NAID

      130004621488

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Practical determination of hydraulic conductivity of sand sediment soils.2003

    • Author(s)
      T.Morii
    • Journal Title

      Journal of Rainwater Catchment Systems Vol.9,No.1

      Pages: 1-6

    • NAID

      110002667609

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Field measurement of soil water content in a sandy soil using ground-penetrating radar.2003

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the Asian Conference on Unsaturated Soils UNSAT-ASIA 2003

      Pages: 365-368

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In-situ measurement and evaluation of soil permeability in sand sediment.2003

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the Asian Conference on Unsaturated Soils UNSAT-ASIA 2003

      Pages: 107-112

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Practical determination of soil permeability of sand sediment that includes grave and cobbles.2003

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the international conference on Problematic soils

      Pages: 393-400

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Non distructive measurement of soil water content profile in a levee using ground-penetrating radar.2003

    • Author(s)
      Y.Takeshita
    • Journal Title

      Proceedings of the 58^<th> JSCE Annual Meeting III

      Pages: 839-840

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Field measurement of saturated and unsaturated moisture properties of soil.2003

    • Author(s)
      T.Morii
    • Journal Title

      Proceedings of the 38^<th> JGS Annual Meeting

      Pages: 601-602

    • NAID

      130004621488

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Y.Takeshita: "Field measurement of soil water content in a sandy soil using ground-penetrating radar"Proceedings of the Asian Conference on Unsaturated Soils UNSAT-ASIA 2003. 365-368 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Morii: "In-situ measurement and evaluation of soil permeability in sand sediment"Proceedings of the Asian Conference on Unsaturated Soils UNSAT-ASIA 2003. 107-112 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Morii: "Practical determination of soil permeability of sand sediment that includes grave and cobbles"Proceedings of the international conference on Problematic soils. 393-400 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Morii: "Practical determination of hydraulic conductivity of sand sediment soils"Journal of Rainwater Catchment Systems. Vol.9, No1. 1-6 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 竹下祐二: "地中レーダによる河川堤防内の水分動態の非破壊計測方法"土木学会第58回年次学術講演会講演概要集. 839-840 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 森井俊広: "土の飽和・不飽和水分特性の原位置測定"第38回地盤工学研究発表会平成15年度発表講演集. 601-602 (2003)

    • Related Report
      2003 Annual Research Report

URL: 

Published: 2003-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi