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Development of Hybrid Monitoring System for Early Detection of Earthquake Damage to Lifeline

Research Project

Project/Area Number 08650545
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionKanazawa University

Principal Investigator

MIYAJIMA Masakatsu  Kanazawa Univ., Graduate School of Natural Science and Technology, Associate Professor, 大学院・自然科学研究科, 助教授 (70143881)

Co-Investigator(Kenkyū-buntansha) YOSHIDA Masaho  Fukui National College of Technology, Dept.of Civil Engineering, Assistant Profe, 講師 (90210723)
MURATA Akira  Kanazawa Univ., Dept.of Civil Engineering, Research Associate, 工学部, 助手 (30283097)
TAKAYAMA Jun-ichi  Kanazawa Univ., Dept.of Civil Engineering, Associate Professor, 工学部, 助教授 (90126590)
KITAURA Masaru  Kanazawa Univ., Dept.of Civil Engineering, Professor, 工学部, 教授 (70026269)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1996: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsLifeline / Early Detection of Earthquake damage / Monitoring / Liquefaction / Water Supply System / Strong Ground Motion Records
Research Abstract

This study deals with development of hybrid monitoring system of ground motion and lifeline facilities for early detection of their earthquake damage. First, the monitoring of ground failure, especially soil liquefaction was studied because liquefaction was one of the most crucial geotechnical hazards during an earthquake. In this study, strong ground motion records were used for detection of liquefaction. Amplitude characteristics of strong ground motion records were investigated. The time histories of the ratio of vertical ground acceleration to horizontal one was calculated from the strong ground motion records in liquefied and non-liquefied areas. As the ratio increased after the liquefaction occurred, the ratio seems to be one of the indices of detection of liquefaction. Frequency characteristics of the strong ground motion records were also studied. The running spectra and time histories of the predominant fequency of the strong ground motion records in liquefied and non-liquefie … More d areas were calculated. The decrease rate of the predominant frequency is the one of indices of detection of liquefaction.
Next, the methodology for estimation of spatial liquefaction potential was proposed. The method was a geostatistical procedure which was called as Kriging technique using semi-variogram. This method was applied to estimation of liquefied sites by using the data obtained from boreholes at limited sites in Niigata, Noshiro and Kobe cities. The areas where the liquefaction occurred during the 1964 Niigata, 1983 Nihonkai Chubu and 1995 Hyogoken Nambu earthquakes, respectively, could be predicted relatively well.
Furthermore, the optimum monitoring sites for lifeline facilities were investigated by case study of Kanazawa city. The critical points of pipeline network were clarified by the flow analysis after an earthquake, then the important sites for monitoring were determined in considering the crucial bases after an earthquake such as a general hospital, shelter, and so on. Less

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] 高山 純一: "金沢市を対象とした大震時における消防力低下地域の予測と消防水利計画に関する研究" 第2回都市直下地震災害総合シンポジウム論文集. 403-406 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宮島 昌克: "リアルタイム地震防災のための強震記録を用いた液状化検知法" 第16回日本自然災害学会学術講演会講演概要集. 83-84 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshida, Masaho: "A Simplified Procedure to Estimate Liquefaction-Induced Large Ground Displacement Using Spatial Liquefaction Potential" Proc.of 7th ICOSSAR. (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 村田 晶: "1994年三陸はるか沖地震における上水道管路被害の要因分析" 三陸はるか沖地震シンポジウム論文集. 109-116 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宮島 昌克: "強震記録を用いた液状化センサーの開発に関する基礎的研究" 土木学会中部支部平成9年度研究発表会講演概要集. 455-456 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宮島 昌克: "リアルタイム地震防災のための上水道管路網の最適モニタリング" 土木学会中部支部平成9年度研究発表会講演概要集. 89-90 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshida, M., Miyajima, M.and Kitaura, M.: "Evaluation of Liquefied Ground Flow Based on Estimation of Spatial Liquefaction Potential" Proc.of 11WCEE. (CD). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhai, E., Miyajima, M.and Kitaura, M.: "Experimental Study on Effects of Vertical Ground Motions upon Ground Amplification and Damage to Lifelines in Liquefied Area" Proc.of 11WCEE. (CD). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takayama, J.: "An Estimation Method of Non-Fire-Fighting District by Network Reliability Based on Connectivity Analysis at a Strong Earthquake (in Japanese)" Proc.of the 1st Symposium on Urban Inland Earthquake Hazard. 173-176 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Miyajima, M.and Kitaura, M.: "Performance on Water Supply Pipelines During the 1995 Hyogoken-Nambu Earthquake" Proc.of the 5th Japan/US Workshop Urban Earthquake Hazard Reduction. 377-380 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Murata, A., Miyajima, M.and Kitaura, M.: "Damage Analysis of Water Supply Pipelines Considering Geological Characteristics in the 1995 Hyogoken-Nambu Earthquake (in Japanese)" Proc.of the 2nd Symposium on Hanshin-Awaji Great Earthquake Disaster. 157-162 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshida, M., Miyajima, M.and Kitaura, M.: "A Simplified Procedure to Estimate Liquefaction-Induced Large Ground Displacement Using Spatial Liquefaction Potential" Proc.of 7th ICOSSAR. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Takayama, J.and Iisaka, T.: "The Estimation of Non-Fire-Fighting District and Water Supply Planning at Great Earthquake Cased in KANAZAWA (in Japanese)" Proc.of the 2nd Symposium on Urban Inland Earthquake Hazard. 173-176 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Zhai, E., Miyajima, M.and Kitaura, M.: "Nonlinear Amplifications of Vertical Ground Motions in the 1995 Hyogoken Nambu Earthquake" Journal of Geotechnical Engineering, JSCE. No.582. 1-10 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 高山純一: "金沢市を対象とした大震時における消防力低下地域の予測と消防水利計画に関する研究" 第2回都市直下地震災害総合シンポジウム論文集. 403-406 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宮島昌克: "リアルタイム地震防災のための強震記録を用いた液状化検知法" 第16回日本自然災害学会学術講演会講演概要集. 83-84 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yoshida,Masaho: "A Simplified Procedure to Estimate Liquefaction-Induced Large Ground Displacement Using Spatial Liquefaction Potential" Proc.of 7th ICOSSAR. (in press)

    • Related Report
      1997 Annual Research Report
  • [Publications] 村田晶: "1994年三陸はるか沖地震における上水道管路被害の要因分析" 三陸はるか沖地震シンポジウム論文集. 109-116 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宮島昌克: "強震記録を用いた液状化センサーの開発に関する基礎的研究" 土木学会中部支部平成9年度研究発表会講演概要集. 455-456 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宮島昌克: "リアルタイム地震防災のための上水道管路網の最適モニタリング" 土木学会中部支部平成9年度研究発表会講演概要集. 89-90 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kitaura,Masaru: "Damage to Water Supply Pipelines" Special Issue of Soils and Foundations. 325-333 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshida,Masaho: "Evaluation of Liquefied Ground Flow Based on Estimation of Spatial Liquefaction Potential" Proc.of 11WCEE(CD). (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Zhai,Endi: "Experimental Study on Effects of Vertical Ground Motions upon Ground Amplification and Damage to Lifelines in Liquef ied Area" Proc.of 11WCEE(CD). (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Miyajima,Masakatsu: "Performance on Water Supply Pipelines During The 1995 Hyogoken-Nambu Earthquake" Proc.of the 5th Japan/US Workshop Urban Earthquake Hazard Reduction. (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 村田晶: "1995年兵庫県南部地震における地盤特性を考慮した上水道管路の被害要因分析" 土木学会第2回阪神・淡路大震災に関する学術講演会論文集. 1. 157-162 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 宮島昌克: "強震記録を用いた液状化検知方法に関する研究" 土木学会中部支部平成8年度研究発表会講演概要集. 417-418 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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