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Development of a method to evaluate permeability of rock using barometric fluctuation

Research Project

Project/Area Number 20H02238
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22030:Geotechnical engineering-related
Research InstitutionSaitama University

Principal Investigator

Osada Masahiko  埼玉大学, 理工学研究科, 教授 (00214114)

Co-Investigator(Kenkyū-buntansha) 竹村 貴人  日本大学, 文理学部, 教授 (30359591)
富樫 陽太  埼玉大学, 理工学研究科, 助教 (90753294)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywords岩盤の浸透特性 / 大気圧変動 / 間隙空気圧 / モンテリ地下研究所 / オパリナスクレイ / 時系列解析 / 岩盤の熱伝導特性
Outline of Research at the Start

高レベル放射性廃棄物の地層処分プロジェクトにおける地下水シナリオを適切に設定するためには,掘削影響領域(EDZ)における水理学的及び力学的な岩盤物性とその時間変化を評価することが重要である。
既往の研究でのEDZの領域推定は,弾性波トモグラフィ,比抵抗トモグラフィなどの非破壊探査と原位置透水試験を組み合わせて評価されることが多く,ある時間断面における間欠的なデータ取得であり,透水試験結果と直接的な比較が困難である場合が多い。
そこで本研究課題では,大気圧変動を外力として,EDZの領域推定とその場の浸透特性を原位置岩盤の浸透特性を連続的に,かつ同時に評価する手法を開発することを目的とする。

Outline of Final Research Achievements

In order to properly assess groundwater scenarios for HLW geological disposal projects, it is important to evaluate the hydraulic properties and their temporal changes in the excavation-damaged zone. In this study, field measurements and laboratory experiments were carried out with the aim of developing a method that can be used to continuously measure changes in rock hydraulic properties over a long period of time and that can be measured anywhere in the tunnel by utilizing atmospheric pressure fluctuations, which change daily as a natural phenomenon, as an external force for assessing hydraulic properties. The results showed that atmospheric pressure fluctuations can be used to evaluate the hydraulic properties at the tunnel wall. It was also shown that multi-point measurements could be used to evaluate the anisotropy of hydraulic properties of sedimentary rocks.

Academic Significance and Societal Importance of the Research Achievements

岩盤の浸透特性は,様々な社会基盤を創成するうえで,必要な物性値である。本研究の成果により,簡便に,安価に,岩石の浸透特性をその異方性を含めて評価できるようになったことは,有用と考えられる。さらに,地層処分プロジェクトにおいては,経時変化を踏まえた物性評価が必要であり,これに貢献しえる手法を提案できたと考えている。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results) Presentation (22 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] Unsaturated Strength of Tage Tuff and Its Water Retention Drying Curve2024

    • Author(s)
      小田部 晏彦,富樫 陽太,畠山 健,長田 昌彦
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 73 Issue: 3 Pages: 212-219

    • DOI

      10.2472/jsms.73.212

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2024-03-15
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ワンボードマイコンArduinoでの原位置データ測定と実験装置作成2023

    • Author(s)
      竹村貴人, 作道 悠, 細野日向子, 長田昌彦
    • Journal Title

      応用地質

      Volume: 63 Pages: 307-313

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 史跡でのIoT技術の活用事例2023

    • Author(s)
      長田昌彦, 小澤一稀, 船引耕平, 金子義人, 高橋優輔
    • Journal Title

      応用地質

      Volume: 63 Pages: 297-306

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluating changes in the degree of saturation in excavation disturbed zones using a stochastic differential equation2022

    • Author(s)
      Togashi Yota、Mizuo Kazuki、Osada Masahiko、Yamabe Tadashi、Kameya Hiroshi
    • Journal Title

      Computers and Geotechnics

      Volume: 143 Pages: 104598-104598

    • DOI

      10.1016/j.compgeo.2021.104598

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Principal strain rotation of anisotropic tuff due to continuous water-content variation2021

    • Author(s)
      Togashi Yota、Imano Takanobu、Osada Masahiko、Hosoda Koichi、Ogawa Koji
    • Journal Title

      International Journal of Rock Mechanics and Mining Sciences

      Volume: 138 Pages: 104646-104646

    • DOI

      10.1016/j.ijrmms.2021.104646

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 大気圧変動に対する飽和度低下による間隙空気圧変化の時系列解析2021

    • Author(s)
      長田 昌彦, 竹村 貴人, 五嶋 壮太, 富樫 陽太, 大沢 光司
    • Journal Title

      岩の力学国内シンポジウム講演集

      Volume: 15 Pages: 221-226

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of stress path on brittle failure of sandstone: Difference in crack growth between tri-axial compression and extension conditions2021

    • Author(s)
      Kamran Panaghi, Takato Takemura, Daisuke Asahina, Manabu Takahashi
    • Journal Title

      Tectonophysics

      Volume: - Pages: 228865-228865

    • DOI

      10.1016/j.tecto.2021.228865

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 不飽和状態における田下凝灰岩の強度特性2024

    • Author(s)
      小田部 晏彦,富樫 陽太,畠山 健,長田 昌彦
    • Organizer
      土木学会第50回岩盤力学に関するシンポジウム講演集, pp.108-113,2024.
    • Related Report
      2023 Annual Research Report
  • [Presentation] Long Term Measurements in Engineering Geology2024

    • Author(s)
      Masahiko Osada
    • Organizer
      14th Asian Regional Conference of IAEG, Universiti Teknologi Malaysia (UTM) Kuala Lumpur, Malaysia, 26th-29th February, 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fundamental study on estimation of permeability at in-situ EDZ from pore air pressure response2023

    • Author(s)
      Masahiko Osada, Koji Osawa, Christina Putri Widyaningtyas, Yota Togashi
    • Organizer
      15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) OCTOBER 09th - 14th, 2023, SALZBURG CONGRESS, AUSTRIA, pp.2581-2585,2023.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地下軍需工場跡地内の坑道壁面環境モニタリング2023

    • Author(s)
      長田 昌彦,青木 新之介,広瀬 朱音,吉成 結菜,小林 璃桜,大寺 裕也
    • Organizer
      日本応用地質学会令和5年度研究発表会講演論文集, pp. 210-211, 2023.
    • Related Report
      2023 Annual Research Report
  • [Presentation] Numerical approach to evaluate the influence of water saturation on the strength of Neogene Tuff in Utsunomiya city, Japan2023

    • Author(s)
      Ranaweera N, Togashi Y, Osada M, Kawanoue R
    • Organizer
      ISRM, Proc. EUROCK2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 含水に伴う田下凝灰岩の強度変化と平均応力変化によるモデル化2023

    • Author(s)
      小田部 晏彦,富樫 陽太,長田 昌彦,畠山 健
    • Organizer
      土木学会, 第49回岩盤力学に関するシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 廃棄物埋設における掘削に伴う岩盤の力学状態と水理特性を踏まえた地下水移動評価の考え方2023

    • Author(s)
      東原知広, 市耒高彦, 入江正明, 長田昌彦
    • Organizer
      土木学会, 第49回岩盤力学に関するシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 廃棄物埋設における岩盤の力学水理連成試験機の製作と動作確認試験2023

    • Author(s)
      市耒高彦, 東原知広, 入江正明, 長田昌彦
    • Organizer
      土木学会, 第49回岩盤力学に関するシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Development of a test method for the effects of cyclic dry and wet damage to archaeological stone JpGU 2022 開催年月日 2022年5月22日 - 2022年6月3日 記述言語 英語 会議種別 ポスター発表 主催者2022

    • Author(s)
      Takato Takemura
    • Organizer
      JpGU2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 外気圧の周期的変動に対する岩石ブロック内の気圧応答2022

    • Author(s)
      長田昌彦, 大沢光司, クリスティーナプツリ, 野澤海人
    • Organizer
      日本応用地質学会, 令和4年度研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 亀裂性岩盤の3次元透水テンソルの推定方法と異方応力下での透水性に関する検討2022

    • Author(s)
      竹村 貴人, 細野 日向子, 作道 悠, 川北 章悟, 鈴木 健一郎
    • Organizer
      日本応用地質学会, 令和4年度研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Influence of advection and diffusion on water content changes in tuff deformation during the drying process2022

    • Author(s)
      Neranjan Ranaweera, Yota Togashi
    • Organizer
      地盤工学会, GeoKanto2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Development of a test method for the effects of cyclic dry and wet damage to archaeological stone2022

    • Author(s)
      Takemura, T.
    • Organizer
      JpGU-EGU2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 間隙水圧の周期的変動が岩石亀裂の透水係数に与える影響 ―実験的検討―2021

    • Author(s)
      李 楊、川北 章悟、朝比奈 大輔、竹村 貴人
    • Organizer
      JpGU2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 長期モニタリングによる多孔質凝灰岩の割れ目開口幅の季節変化2021

    • Author(s)
      長田昌彦, 船引耕平, 高橋優輔
    • Organizer
      日本応用地質学会令和3 年度研究発表会講演論文集
    • Related Report
      2021 Annual Research Report
  • [Presentation] 堆積軟岩石からなる遺跡石材の浸水・乾燥繰り返し試験機 による損傷過程の評価2021

    • Author(s)
      作道 悠,宿澤 未波,竹村 貴人
    • Organizer
      日本応用地質学会令和3 年度研究発表会講演論文集
    • Related Report
      2021 Annual Research Report
  • [Presentation] Seasonal change of a fracture aperture in porous tuffaceous rock with 0.01mm-order real-time monitoring2021

    • Author(s)
      Masahiko Osada and Kohei Funabiki
    • Organizer
      5th International Workshop on Rock Mechanics and Engineering Geology in Volcanic Fields
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exact solution of Richard’s equation using heat transfer boundary and application to dry-induced deformation behavior of Tage tuff2021

    • Author(s)
      Mizuo K., Togashi Y. & Osada M.
    • Organizer
      5th International Workshop on Rock Mechanics and Engineering Geology in Volcanic Fields
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deformation characteristics of sedimentary rock due to continuous changes of moisture content in wetting process2021

    • Author(s)
      Togashi Y., Imano T. & Osada M.
    • Organizer
      Proc. ACUUS2020 (IOP Conference Series: Earth and Environmental Science)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 長期観測により確認された降雨に伴う凝灰岩開口割れ目の変位挙動2020

    • Author(s)
      長田昌彦, 小澤一稀, 船引耕平, 弓明義
    • Organizer
      日本応用地質学会令和2年度研究発表会講演論文集
    • Related Report
      2020 Annual Research Report
  • [Presentation] 二酸化炭素地下貯留サイトとしての堆積岩類のせん断面形成過程と透水挙動に関する実験的研究2020

    • Author(s)
      竹村貴人,朝比奈大輔,佐藤 稔
    • Organizer
      日本応用地質学会令和2年度研究発表会講演論文集
    • Related Report
      2020 Annual Research Report
  • [Presentation] Rotation of three principal strains of tuff during drying shrinkage2020

    • Author(s)
      Togashi Yota, Osada Masahiko, Yamabe Tadashi
    • Organizer
      Proc. EUROCK 2020, 2020-175, 7 pages.
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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