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IMPROVEMENTS OF ACCURACY OF DISPLACEMENT MEASUREMENTS USING GPS FOR MONITORING THE STABILITY OF SLOPES

Research Project

Project/Area Number 17560445
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geotechnical engineering
Research InstitutionYAMAGUCHI UNIVERSITY

Principal Investigator

SHIMIZU Norikazu  YAMAGUCHI UNIVERSITY, GRADUATE SCHOOL OF SCIENCE AND ENGINEERING, PROFESSOR, 大学院理工学研究科, 教授 (70150357)

Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2006: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2005: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsDISPLACEMENT MEASUREMENTS / GPS / SLOPEMITIGATION STABILITY / MONITORING STABILITY / FIELD MEASUREMENTS / DISASTER / ATMOSPHERIC DELAY / PRECISE 3D MEASURENTS / 斜面安全監視 / 気象補正 / 上空障害物処理 / 高精度化
Research Abstract

In order to improve the reliability of displacement measurements, using the Global Positioning System, it is an essential task to detect the exact displacements from measurement data scattered among various types of errors. This research discusses two important issues concerning improvement of the accuracy of GPS displacement measurements.
The first one is the atmospheric delay caused by changes in weather conditions as an important factor in the measurement errors. An error correction method for it has been proposed. The method was applied to practical measurement results in order to verify it.
The second issue is an influence of obstacles above a sensor to the measurement accuracy. A field investigation was conducted to reveal the cause of the dilution of the accuracy due to the obstacles. It was found that the residual of the double difference affects on the accuracy. In order to improve the accuracy of measurements, the data of satellites which are caused the dilution was neglected on baseline analysis. The "mask procedure" was proposed to conduct it, and was verified to success improving the measurement accuracy.
The both methods succeeded in improving the measurement accuracy of GPS displacement monitoring

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (17 results)

All 2007 2006 2005

All Journal Article (17 results)

  • [Journal Article] GPS変位計測における上空障害物の影響調査と精度改善手法の検討(その3)2007

    • Author(s)
      平川隼敏
    • Journal Title

      土木学会全国大会、第62回年次学術講演会概要集 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測の精度向上を目指した対流圏伝搬遅延補正の妥当性の検証(その3)2007

    • Author(s)
      于 萌萌
    • Journal Title

      土木学会全国大会,第62回年次学術講演会概要集 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測における上空障害物の影響調査と精度改善手法の検討(その2)2007

    • Author(s)
      平川隼敏
    • Journal Title

      第59回土木学会中国支部研究発表会 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測の精度向上を目指した対流圏伝搬遅延補正の妥当性の検証(その2)2007

    • Author(s)
      于 萌萌
    • Journal Title

      第59回土木学会中国支部研究発表会 (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] INVESTIGATION ON INFLUENCE OF OBSTACLE ABOVE A SENCER TO DISPLACEMNT MEASUREMENTS USING GPS AND AN INPROVEMENT METHOD OF THE ACCURACY; SERIES 32007

    • Author(s)
      Hirakawa, H.
    • Journal Title

      PROCEEDINGS OF ANNUAL CONFERENCE OF JSCE (to be published)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] VERIFICATION OF AN CORRECTION METHOD FOR METEOROLOGICAL INFLUENCE IN GPS DISPLACEMENT MEASUREMENTS; SERIES 32007

    • Author(s)
      Yu, M.
    • Journal Title

      PROCEEDINGS OF ANNUAL CONFERENCE OF JSCE (to be published)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] INVESTIGATION ON INFLUENCE OF OBSTACLE ABOVE A SENCER TO DISPLACEMNT MEASUREMENTS USING GPS AND AN INPROVEMENT METHOD OF THE ACCURACY; SERIES 22007

    • Author(s)
      Hirakawa, H.
    • Journal Title

      PROCEEDINGS OF TYUGOKU BRANCH CONFERENCE OF JSCE (in Press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] VERIFICATION OF AN CORRECTION METHOD FOR METEOROLOGICAL INFLUENCE IN GPS DISPLACEMENT MEASUREMENTS; SERIES 22007

    • Author(s)
      YU, M.
    • Journal Title

      PROCEEDINGS OF TYUGOKU BRANCH CONFERENCE OF JSCE (in Press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測における上空障害物の影響調査と精度改善手法の検討2006

    • Author(s)
      神谷康司
    • Journal Title

      土木学会全国大会,第61回年次学術講演会概要集 III

      Pages: 435-436

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測の精度向上を目指した対流圏伝搬遅延補正の妥当性の検証2006

    • Author(s)
      田村尚之
    • Journal Title

      土木学会全国大会,第61回年次学術講演会概要集 III

      Pages: 437-438

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] INVESTIGATION ON INFLUENCE OF OBSTACLE ABOVE A SENCER TO DISPLACEMNT MEASUREMENTS USING GPS AND AN INPROVEMENT METHOD OF THE ACCURACY2006

    • Author(s)
      KAMITANI, K.
    • Journal Title

      PROCEEDINGS OF ANNUAL CONFERENCE OF JSCE

      Pages: 435-436

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] VERIFICATION OF AN CORRECTION METHOD FOR METEOROLOGICAL INFLUENCE IN GPS DISPLACEMENT MEASUREMENTS2006

    • Author(s)
      TAMURA, N.
    • Journal Title

      PROCEEDINGS OF ANNUAL CONFERENCE OF JSCE

      Pages: 436-437

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] GPS変位計測における上空障害物の影響調査と精度改善手法の検討2006

    • Author(s)
      神谷康司
    • Journal Title

      土木学会全国大会、第61回年次学術講演会概要集 111

      Pages: 435-436

    • Related Report
      2006 Annual Research Report
  • [Journal Article] GPS変位計測の精度向上を目指した対流圏伝搬遅延補正の妥当性の検証2006

    • Author(s)
      田村尚之
    • Journal Title

      土木学会全国大会、第61回年次学術講演会概要集 111

      Pages: 437-438

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Monitoring the Stability of Slopes by GPS2006

    • Author(s)
      S.Sakurai
    • Journal Title

      International Symposium on Stability of Rock Slopes (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Monitoring the ground stability of a highway tunnel constructed in landslide areas by using a web-based GPS displacement monitoring system2006

    • Author(s)
      N.Shimizu
    • Journal Title

      ITA World Tunnel Congress (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Displacement Monitoring System using GPS for Excavated and Natural Slopes2005

    • Author(s)
      N.Shimizu
    • Journal Title

      The EIT-JAPAN-AIT Joint Workshop 2005 "Geo-Risk Engineering & Management"

      Pages: 47-56

    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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