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Predicting system of Shirasu slope failure in southern Kyushu

Research Project

Project/Area Number 12792009
Research Category

Grant-in-Aid for University and Society Collaboration

Allocation TypeSingle-year Grants
Research Field Geotechnical engineering
Research InstitutionKagoshima University

Principal Investigator

KITAMURA Ryosuke  Kagoshima University, Faculty of Engineering, Professor, 工学部, 教授 (70111979)

Co-Investigator(Kenkyū-buntansha) KOJIMA Naohito  Tokyo Science Unv., Science and Tecnology, Asso. Professor, 理工学部, 助教授 (00205387)
TOMITA Katsutoshi  Kagoshima University, Faculty of Science, Professor, 理学部, 教授 (20041220)
KOBAYASHI Tetsuo  Kagoshima University, Faculty of Science, Associate Professor, 理学部, 助教授 (70112430)
OCHIAI Hidetoshi  Kyushu University, School of Engineering, Professor, 大学院・工学研究院, 教授 (00039679)
YAMAMOTO Kentaro  Kagoshima University, Faculty of Engineering, Research Associate, 工学部, 助手 (40305157)
地頭薗 隆  鹿児島大学, 農学部, 助教授 (50145455)
高田 誠  中央開発(株), 九州事業部, 地盤技術部長
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥15,200,000 (Direct Cost: ¥15,200,000)
Fiscal Year 2002: ¥8,100,000 (Direct Cost: ¥8,100,000)
Fiscal Year 2001: ¥7,100,000 (Direct Cost: ¥7,100,000)
KeywordsPrediction of slope failure / Field measurement / Unsaturated Shirasu / Suction / Remote sensing / Numerical & mechanical model / Probability of slope failure / Weathering matters / 斜面崩壊 / シラス斜面 / 斜面安定解析 / 防災戦略 / しらす斜面 / 不飽和土 / せん断強度パラメータ
Research Abstract

This research aims to predict the place time and scale of slope failures due to rainfall in the southern part of Kyushu Island. The research project is mainly divided into three parts, i.e., (1) the in-situ and laboratory tests to make clear the inherent causes of slope failure due to rainfall, (2) field measuring system to acquire the information of rainfall, suction and temperature in soil that relate to the induced causes due to rainfall, and (3) numerical models to simulate the slope condition concerning the water content.
To identify the dangerous places of slope failure the remote sensing technology was applied with the quantitative theories. The X ray reflection method was used to investigate the weathering process. The chemical analysis of pyroclastic flow deposits made clear the order of eruptions and sediments around Kagoshima Bay area.
The field measurement of rainfall, suction and temperature in soil made clear the process of infiltration of rain and evaporation of pore water on Shirasu slope.
The numerical experiments were carried out to simulate the condition of slope concerning the water content and proved the validity of numerical models which developed for this research.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (49 results)

All Other

All Publications (49 results)

  • [Publications] 北村良介: "降雨によるシラス斜面の浸透・崩壊に関する模型土槽試験"「豪雨時の斜面崩壊のメカニズムおよび危険度予測に関するシンポジウム」発表論文集. 39-48 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 北村良介: "降雨に伴う斜面崩壊確率について"「豪雨時の斜面崩壊のメカニズムおよび危険度予測に関するシンポジウム」発表論文集. 77-84 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 小島尚人: "衛星リモートセンシングデータを導入したシラス自然斜面の崩壊危険箇所評価精度の向上"土木学会論文集. No.707/VI-55. 165-176 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 小林哲夫: "鬼界カルデラ,6.5kaBP噴火に誘発された2度の巨大地震"第四紀研究. 41(4). 287-299 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomita, K.: "Synthesis of smectite from igneous rocks atmospheric pressure"Clay Science. 11-6. 589-599 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 地頭薗隆: "シラス地域の水文地形とシラス斜面崖錐部の崩壊"地形. 23(4). 611-626 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kitamura et al.: "Seepage & failure test on Shirasu slope by soil tank"Proc. Sympo. on mechanism of slope failure and its risk evaluation due to rainfall. JGS. 39-48 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kitamura et al.: "A consideration on probability of slope failure due to rainfall"Proc. Sympo. on mechanism of slope failure and its risk evaluation due to rainfall. JGS. 77-84 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kojima et al.: "Improvement of the accuracy for identifying the hazardous-slope composed of the shirasu-deposit applying the satellite data"Journal of Construction Management and Engineering, Japan Society of Civil engineers. No.707/VI-55. 165-176 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kobayashi et al.: "Two large-scale earthquakes triggered by a 6.5 ka BP eruption from Kikai caldera, southern Kyushu, Japan"The Quaternary Research. 41(4). 287-299 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomita et al.: "Synthesis of smectite from igneous rocks at atmospheric pressure"Clay Science. 11(6). 589-599 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Jitousono, T.: "A Hydrogeomorphological Study on Landslide of Talus Slope in Valley Scarred on Shirasu (Pyroclastic Flow Deposits) Plateau in Southern Kyushu, Japan"Transactions, Japanese Geomorpnological Union. 23(4). 611-626 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 荒木功平: "不飽和土の粒子間力に関する一考察"第38回地盤工学研究発表会. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 中野裕二郎: "パイピング現象に関する微視的考察"第38回地盤工学研究発表会. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 横山真之: "一面せん断試験装置を用いた不飽和土のせん断特性に関する一考察"第38回地盤工学研究発表会. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 酒匂一成: "降雨による斜面の不安定化に関する一考察"第38回地盤工学研究発表会. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 安永信一郎: "鹿児島県出水地域におけるニューラルネツトワークによる危険斜面の同定"第38回地盤工学研究発表会. (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 酒匂一成: "鹿児島県国分市入戸のシラス斜面における二次元不飽和浸透解析"弟57回土木学会年次学術講演会. 共通セツション. 271-272 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 横山真之: "一面せん断試験装置を用いた不飽和土の力学特性に関する一考察"第57回土木学会年次学術講演会. 第III部. 585-587 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 荒木功平: "ヤンブ法を用いた降雨による斜面崩壊確率に関する一考察"第57回土木学会年次学術講演会. 第III部. 815-816 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 北村良介: "降雨による斜面の不安定化の定量的評価"第21回日本自然災害学会年次講演会. 3-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Sako: "Numerical analysis for seepage of rainwater and evaporation of porewater in unsaturated soil"Int.Sympo.on Groundwater Problems relatid to Geo-Environment (IS-Okayama). (掲載決定済み). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 村田秀一: "降雨によるシラス斜面の浸透・崩壊に関する模型土槽試験"豪雨時の斜面崩壊のメカニズムおよび危険度予測に関するシンポジウム発表論文集. (掲載決定済み). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 荒木功平: "降雨に伴う斜面崩壊確率について"豪雨時の斜面崩壊のメカニズムおよび危険度予測に関するシンポジウム発表論文集. (掲載決定済み). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Sako: "Water retention and flow mechanism in unsaturated soil"Unsat-Asia2003. (掲載決定済み). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] R.Kitamura: "Influence of water content on apparent cohesion for unsaturated soil"Unsat-Asia2003. (掲載決定済み).

    • Related Report
      2002 Annual Research Report
  • [Publications] 宮本裕二: "不飽和しらす地盤での蒸発を考慮した伝熱・浸透挙動のモデル化"土木学会応用力学論文集. Vol.5. 481-490 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Sako: "A research strategy for prediction of slope failure due to rainfall"Proc.Int.Conf.on Physical Modelling in Geotechnics. 771-776 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 松尾和昌: "斜面崩壊予知戦略南九州シラス地帯を例として"自然災害科学. 21-1. 25-33 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 成尾英仁: "鬼界カルデラ,6.5kaBP噴火に誘発された2度の巨大噴火"第四紀研究. 41-4. 287-299 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 小島尚人: "シラス自然斜面の崩壊危険箇所評価を目的とした素因と誘因影響の分析について"日本リモートセンシング学会第32回学術講演会論文集. 3-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 小島尚人: "シラス自然斜面の崩壊誘因逆推定における衛星熱赤外域情報の適用性について"日本リモートセンシング学会第33回学術講演会論文集. 259-260 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 小島尚人: "衛星リモートセンシングデータを導入したシラス自然斜面の崩壊危険箇所評価精度の向上"土木学会論文集. No.714/VI-56. 165-176 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Tomita, K.: "Synthesis of smectite from igneous rocks at atmospheric pressure"Clay Science. Vol.11, No.6. 585-599 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 富田克利: "南極大陸、東南極エンダビーランド、リーセルラルセン山地域の粘土鉱物"第46回粘土科学討論会. 154-155 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 地頭薗隆: "南九州火山地域における地下水型崩壊の予測"土砂災害に関するシンポジウム講演論文集. 9-12 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 地頭薗隆: "シラス地域の水文地形とシラス斜面崖錐部の崩壊"地形. 23(4). 611-626 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 北村良介: "降雨による斜面崩壊確率に関する一考察"第37回地盤工学研究発表会. (発表予定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 北村良介: "斜面のモニタリングと数値力学モデルによる安定性評価に関する一考察"平成13年度土木学会西部支部研究発表会. A226-A227 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 北村良介: "コーン貫入試験装置の試作と土槽模型地盤への適用に関する一考察"平成13年度土木学会西部支部研究発表会. A182-A183 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 小島尚人: "自然シラス斜面の崩壊危険箇所評価に時系列の衛星熱赤外域情報を適用した場合の効果について"日本リモートセンシング学会第31回学術講演会. (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 小林哲夫: "火砕流堆積物の堆積温度からみた由布火山の2.2ka噴火"火山. 46巻4号. 187-203 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 高田誠: "一次しらす地盤の力学特性に関する一考察"土木学会論文集. No.6941-III-57. 343-348 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 酒匂一成,山田満秀,北村良介: "新しいしらす斜面の安定解析手法"土木学会応用力学論文集. 13巻. 497-503 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 北村良介,川井田実,阿部廣史,城本一義,寺地卓也: "砂質土地盤でのサクションの現地計測システムの開発"土木学会論文集. 632号/III-51. 287-292 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 北村良介,坂元竜太,落合英俊,高田誠: "鹿児島県出水市でのサクションの現地計測"第19回日本自然災害学会年次講演会. 23-24 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 福島大輔,小林哲夫: "大隅降下軽石に伴う垂水火砕流の発生・堆積様式"火山. 45巻・4号. 225-240 (2000)

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      2000 Annual Research Report
  • [Publications] 安福規之,落合英俊,大野司郎: "原位置調査結果を活用した杭の鉛直支持力の地盤工学的推定法とその適用"第45回地盤工学シンポジウム論文集. 163-168 (2000)

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      2000 Annual Research Report
  • [Publications] 小島尚人,大林成行,北村良介: "自然シラス斜面の崩壊危険箇所評価における衛星熱赤外情報と植生指標の適用効果"平成13年度土木学会全国大会. (発表予定). (2001)

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      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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