• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Effect of clay mineral type on the physical and mechanical properties of barriers for the geological disposal of radioactive waste

Research Project

Project/Area Number 16K21174
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Earth system and resources engineering
Geotechnical engineering
Research InstitutionTottori University

Principal Investigator

KOHNO Masanori  鳥取大学, 工学研究科, 講師 (60640901)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords粘土鉱物 / ベントナイト / 変質 / 一軸圧縮強度 / 膨潤圧 / 透水係数 / 放射性廃棄物地層処分 / バリア材 / 放射性廃棄物地下処分 / 人工バリア材 / 膨潤・透水特性 / 鉱物組成
Outline of Final Research Achievements

Clay-mineral type and content are very important factors for the ultra-long-term stabilization of barriers in radioactive waste disposal. Firstly, in order to clarify that effect of only clay mineral content, a series of experiments has been carried out on artificial rock by the use of gypsum specimen mixed with clay minerals. Secondly, this study investigates the effects of clay-mineral type and content on the swelling characteristics and permeability of bentonite-sand mixtures with clay minerals using one-dimensional swelling-pressure and constant-pressure permeability tests. These experiments produced the following results: (1) Comparative tests revealed that the difference of clay mineral content or type in the clay mineral-bearing rock material specimens influences the physical and mechanical properties of rock materials. (2) The hydraulic conductivity of bentonite-sand-clay mineral mixtures increased with increasing content of non-swelling alteration products of montmorillonite.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は,放射性廃棄物の人工・天然バリア材のより確実な長期安定性の実現,さらに,地下環境の状況に応じた粘土バリア材の適切な選定に貢献できると考える.一方,近年のエネルギー資源の多様化,地震・津波・火山噴火による地表での被害を考えると,力学的に安定した地下岩盤利用の可能性を広げることは必須である.様々な環境下での透水性や力学特性の把握により,地下環境の有効利用やエネルギー資源抽出・掘削の際の安定性評価,さらに,遮水壁,人工軟岩開発,地すべり面粘土に関する研究にも展開できると予想される.このように,資源工学および地盤工学分野で幅広い波及効果が期待される.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (18 results)

All 2018 2017 2016

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (13 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Application of the Transient Pulse Method to Measure Clay Permeability2018

    • Author(s)
      Masaji KATO, Yoshitaka NARA, Yuki OKAZAKI, Masanori KOHNO, Toshinori SATO, Tsutomu SATO and Manabu TAKAHASHI
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 59 Issue: 9 Pages: 1427-1432

    • DOI

      10.2320/matertrans.Z-M2018826

    • NAID

      130007439992

    • ISSN
      1345-9678, 1347-5320
    • Year and Date
      2018-09-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of clay-mineral type and content on the hydraulic conductivity of bentonite-sand mixtures made of Kunigel bentonite from Japan2018

    • Author(s)
      Masanori KOHNO, Yoshitaka NARA, Masaji KATO and Tsuyoshi NISHIMURA
    • Journal Title

      Clay Minerals

      Volume: 53 Issue: 4 Pages: 721-732

    • DOI

      10.1180/clm.2018.52

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of Transient Pulse Method to Permeability Measurement for Clay2018

    • Author(s)
      加藤昌治,奈良禎太,岡崎勇樹,河野勝宣,佐藤稔紀,佐藤 努,佐藤 学
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 67 Issue: 3 Pages: 318-323

    • DOI

      10.2472/jsms.67.318

    • NAID

      130006515961

    • ISSN
      0514-5163, 1880-7488
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Permeability of granite including macro-fracture naturally filled with fine-grained minerals2018

    • Author(s)
      Yoshitaka NARA, Masaji KATO, Ryuhei NIRI, Masanori KOHNO, Toshinori SATO, Daisuke FUKUDA, Tsutomu SATO and Manabu TAKAHASHI
    • Journal Title

      Pure and Applied Geophysics

      Volume: 175 Issue: 3 Pages: 917-927

    • DOI

      10.1007/s00024-017-1704-x

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Structure of Clay Mineral on the Physical and Mechanical Properties of Rock Materials2018

    • Author(s)
      河野勝宣,竹原裕太,西村 強
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 67 Issue: 3 Pages: 324-329

    • DOI

      10.2472/jsms.67.324

    • NAID

      130006515962

    • ISSN
      0514-5163, 1880-7488
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 変質したベントナイト系材料の透水性に関する研究2018

    • Author(s)
      大槻亮介,河野勝宣,西村 強
    • Organizer
      第53回地盤工学研究発表会(公益社団法人 地盤工学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 土の透水係数に及ぼす粒径と動水勾配の影響に関する実験的検討2018

    • Author(s)
      河野勝宣,中迫優介,西村 強
    • Organizer
      第53回地盤工学研究発表会(公益社団法人 地盤工学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] ベントナイト系材料の膨潤圧および透水係数に及ぼす変質の影響2018

    • Author(s)
      大槻亮介,河野勝宣,西村 強
    • Organizer
      第70回土木学会中国支部研究発表会(公益社団法人 土木学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 粘土鉱物を混合したベントナイト系材料の膨潤圧および透水係数2018

    • Author(s)
      河野勝宣,大槻亮介,西村 強
    • Organizer
      第44回地盤工学セミナー報告会(公益社団法人 地盤工学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 粘土を懸濁した水が流れる環境下での巨視き裂を含む花崗岩の透水係数2018

    • Author(s)
      加藤昌治,奈良禎太,河野勝宣,佐藤 努,佐藤稔紀,高橋 学
    • Organizer
      日本材料学会第67期学術講演会(公益社団法人 日本材料学会)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 粘土鉱物の種類・含有量の違いに着目した岩質材料 の物理・力学特性に関する実験的研究2017

    • Author(s)
      河野勝宣,竹原裕太,西村 強
    • Organizer
      第14回岩の力学国内シンポジウム(一般社団法人 岩の力学連合会)
    • Place of Presentation
      神戸国際会議場(兵庫県神戸市)
    • Year and Date
      2017-01-10
    • Related Report
      2016 Research-status Report
  • [Presentation] ベントナイト系材料の透水係数に及ぼす粘土鉱物混合率の影響2017

    • Author(s)
      河野勝宣,角 浩一,奈良禎太,加藤昌治,西村 強
    • Organizer
      第52回地盤工学研究発表会(公益社団法人 地盤工学会)
    • Related Report
      2017 Research-status Report
  • [Presentation] Effect of clay mineral type and content on swelling characteristic and permeability of bentonite-sand mixtures2017

    • Author(s)
      Masanori KOHNO, Yoshitaka NARA, Masaji KATO and Tsuyoshi NISHIMURA
    • Organizer
      Clay Conference 2017 - The 7th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粘土鉱物の構造の違いに着目した岩質材料の一軸圧縮強度に関する一考察2017

    • Author(s)
      竹原裕太,河野勝宣,西村 強
    • Organizer
      公益社団法人土木学会平成29年度全国大会第72回年次学術講演会(公益社団法人 土木学会)
    • Related Report
      2017 Research-status Report
  • [Presentation] 粘土鉱物の種類と含有量の違いに着目した地盤の力学特性2017

    • Author(s)
      河野勝宣
    • Organizer
      第4回岩の力学に関する若手研究者会議(一般社団法人 岩の力学連合会)
    • Related Report
      2017 Research-status Report
  • [Presentation] Physical and mechanical properties of artificial rock based on clay mineral content and type2016

    • Author(s)
      Masanori KOHNO, Yuta TAKEHARA and Tsuyoshi NISHIMURA
    • Organizer
      9th Asian Rock Mechanics Symposium (International Society for Rock Mechanics)
    • Place of Presentation
      The Stones Hotel - Bali (Bali, Indonesia)
    • Year and Date
      2016-10-18
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粘土鉱物を混合した石膏供試体の物理・力学特性に 関する実験的研究2016

    • Author(s)
      竹原裕太,河野勝宣,西村 強
    • Organizer
      第51回地盤工学研究発表会(公益社団法人 地盤工学会)
    • Place of Presentation
      岡山大学津島キャンパス(岡山県岡山市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 粘土鉱物を混 合した石膏供試体の物理・力学特性に関する実験的研究2016

    • Author(s)
      竹原裕太,河野勝宣,西村 強
    • Organizer
      平成28年度第68回土木学会中国支部研究発表会(公益社団法人 土木学会 中国支部)
    • Place of Presentation
      広島工業大学五日市キャンパス(広島県広島県)
    • Year and Date
      2016-05-20
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi