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Study on development of a small three components borehole strain meter

Research Project

Project/Area Number 61840011
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 固体地球物理学
Research InstitutionUniversity of Tokyo

Principal Investigator

ISHII Hiroshi  , 地震研究所, 教授 (30004386)

Co-Investigator(Kenkyū-buntansha) KATO Teruyuki  Earthquake Research Institute, University of Tokyo, RESEARCH (80134633)
YANAGISAWA Michio  Earthquake Research Institute, University of Tokyo, RESEARCH (90012947)
Project Period (FY) 1986 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1986: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsa small borehole strainmeter / 小型3成分ひずみ計 / 感度検定 / 小型3成分歪計 / 3成分歪計
Research Abstract

In order to collect data to make a small borehole three components strainmeter with a diameter of 6 cm and a length of 20 cm, various experiments were performed. Firstly a small borehole vessel made from brass was produced and a semiconductor strain gage was employed as a sensor. After various experiments like water proof and sensitivity the strain meter was set into a borehole in the tunnel of Nokogiriyama crustal movement observatory. It was found that the strain meter had a enough sensitivity to record earth tide. Drift and noise of the meter were also investigated. Secondly, a three components strainmeter was produced and it was installed in a water in the vault of Aburatsubo crustal movement observatory. A drift, sensitivity, temperature effect and so on were tested for various sensors like strain gate, magnesensor and eddy current sensor and basic data to produce practical small three components borehole strain meter.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] Ishii,H.: J.P.E.,35,1987.35. S159-S174 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ishii,H.: J.Geod.Soc.Japan,35,1989.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 柳沢道夫: 測地学会誌、34、1988. 34. 75-84 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Kato,T.: J.Geod.Soc.Japan,35,1989.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Kato,T.: Tectonophysics,144,1987.144. 181-188 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ishii, H.;S. Miura; T. Takagi:"Large Scale Crus-tal Movements before and after the 1983 Japan Sea Earthquake." J.P.E.,35,1987.159-174

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ishii, H.;T. Kato:"Detectabilities of Earth-quake Precursors using GPS,EDM an d Strain Meters, with Special Reference to the 1923 Kanto Earthquake." J. Geod.Soc.Japan,35,1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Kato,T.;K.Nakajima:"Regional Crustal Move-ments in Japan and Geodesy by Space Tecni-ques," J. Geod.Soc.Japan,35,1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] KATO,T.;K. Rybickik; K. Kasahara:"Mechanical Interaction between Neighboring Active Fault - an Aplication to the Atera Fault, Central Japan," Tectonophysics, 144,1987. 181-188

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Yanagisawa,M.:"Crustal Strain Measurements Using Resistive Strain Gages [IV]-Strain Res-ponse to Atmospheric Pressure Changes and Its Theoretical Estimation by the Boudary Element Method-" J. Geod.Soc. Japan,34,1988.73-84

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hiroshi ISHII: 測地学会誌. 35. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Satoshi MIURA: AGU Geophysical Monograph.

    • Related Report
      1988 Annual Research Report
  • [Publications] Teruyuki KATO: 測地学会誌. 35. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 柳沢道夫: 測地学会誌. 34. 75-84 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Hiroshi Ishii;Satoshi Miura;Akio Takagi: Journal of Physics of the Earth. 35. (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2022-01-24  

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