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Development of Ground Penetrating Radar for Runoff Phenomena

Research Project

Project/Area Number 02555114
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Hydraulic engineering
Research InstitutionHokkaido University

Principal Investigator

FUJITA Mutsuhiro  Hokkaido University, Faculty of Engineering, professor, 工学部, 教授 (80001139)

Co-Investigator(Kenkyū-buntansha) HAYAKAWA Hiroshi  Kitami Institute of Technology, Research Associate, 助手 (20142797)
SAGA Hiroshi  Hokkaigakuen University, Dept.of Civil Engineering, Assistant Professor, 工学部, 助教授 (50153929)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥9,600,000 (Direct Cost: ¥9,600,000)
Fiscal Year 1991: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1990: ¥8,600,000 (Direct Cost: ¥8,600,000)
KeywordsEarth Penetrating Radar / Dielectric Constant / Resolution / Runoff / Unsaturated-flow / Soil Layr / Moisture Content / Capillary Conductivity / 地中探査レ-ダ- / 土中水分 / 飽和 / 地下水位 / 地層 / 結氷 / アイスリップル / エコ-処理 / サクション / 不飽和浸透 / 降雨強度
Research Abstract

Ground penetrating radars have been developed and have been on sale. These radar were originally developed to detect a communication cable and a water pipe underground without excavation. Some archaeologists make use of these radars to probe ruins buried in the ground. These radars are out of a legal regulation because of a low power. So, every operate these radars.
This research project aims to seek after the possibility of application of the ground penetrating radar which can provide the information of a surface soil layr such as its depth and moisture content. It is well known that the runoff phenomena at a mountainous slope is governed by the above unsaturated-flow equation and a surface soil layr plays an important role for the unsaturated-flow. If we want to put this unsaturated-flow equation in practice, we have to prepare the two relations. One is a relation ship between rheta (the fraction of the soil bulk volume occupied water) and psi (the hydraulic head). The order is relationship between kappa (the capillary conductivity) and rheta. And the other requirements are the slope length and the depth of surface soil layr for the concerned basin. We measured surface soil depth by using a ground penetrating radar at the golf course under construction and calculated runoff from this golf course based on unsaturated flow equation.
The main conclusions are summarized below. (1)It is difficult to measure moisture content in a soil by suing ground penetrating radars on the market. but these can detect saturated zone in a soil. (2)It is possible to probe soil structure.
Finally, these radars on the market are portable but these need AC-100V.And these are very heavy. If these defects are improved, earth penetrating radars will be used in various fields.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 藤田睦博: "大空隙を有する不飽和浸透流の解析" 土木学会北海道支部論文集. 47. 371-376 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤田睦博: "地中レーダーの特性に関する研究" 土木学会北海道支部論文集. 47. 377-382 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤田睦博: "地中レーダーを用いた地層構造の現地調査" 土木学会北海道支部論文集. 48. 557-562 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 嵯峨浩: "豊平川流域における流出解析" 土木学会北海道支部論文集. 48. 473-478 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤田睦博: "多孔質体内の間隙のネットワークモデルを用いた二層流れの解析" 土木学会北海道支部論文集. 48. 563-568 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 早川博: "流域斜面の地形量特性に関する研究" 土木学会北海道支部論文集. 49. 489-494 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 嵯峨浩: "分布型流出モデルによる山地流出解析" 土木学会北海道支部論文集. 49. 511-514 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤田睦博: "表面流を有する斜面流出の実験的研究" 土木学会北海道支部論文集. 49. 543-546 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Fujita, M.: "Experimental Study on the Unsaturated Flow in Soil column with Vertical Void" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.47. 371-376 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Fujita, M.: "Study on the Characteristics of Grand Penetrating Radar" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.47. 377-382 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Fujita, M.: "Study on the Inquiry into the construction Stratum with the Ground Penetrating Radar" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.48. 557-562 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Saga, H.: "Runoff Analysis in the Toyohira River Basin" Proc.of Civil engineering, Hokkaido Branch, JSCE. Vol.48. 473-478 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Fujita, M.: "Study on Two Phase Flow Using Network Model in Porous Media" Prof.of Civil Engineering, Hokkaido Branch, JSCE. Vol.48. 563-568 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hayakawa, H.: "Development of Distributed Runoff Modeling based on Channel Network Property" Proc.of Sixth International Symposium on Stochastic Hydraulics. 671-678 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hayakawa, H.: "Quantitative Analysis of Basin Slope Geomorphology" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.49. 489-494 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Saga, H.: "Runoff Analysis by the Quasi channel Network Model in Mountainous Basin" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.49. 511-514 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Fujita, M.: "Study on Characteristics of Unsaturated Flow with Surface Runoff" Proc.of Civil Engineering, Hokkaido Branch, JSCE. Vol.49. 543-546 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 藤田 睦博,市原 裕之,許士 達広: "地中探査レ-ダ-の特性に関する研究" 土木学会北海道支部論文報告集. 第47号. 377-382 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 藤田 睦博,市原 裕之,許士 達広: "地中探査レ-ダ-の特性に関する研究" 土木学会年次学術講演会講演概要集II. 第46回. 176-177 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 藤田 睦博,市原 裕之: "地中探査レ-ダ-を用いた地層構造の現地探査" 土木学会北海道支部論文報告集. 第48号. 557-562 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 藤田 睦博 市原 裕之 許士 達広: "地中レ-ダ-の特性に関する研究" 土木学会北海道支部論文報告集. 47. 377-382 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 藤田 睦博: "水文地中探査レ-ダ-の性能について" 土木学会年次学術講演会概要集. 46. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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