Personnel Information

写真a

KOHATA Yukihiro


Affiliation centers1, etc

Center of Environmental Science and Disaster Mitigation for Advanced Research

The master's program in charge

Division of Sustainable and Environmental Engineering

The doctoral program in charge

Division of Engineering

The department in charge

Department of Civil Engineering and Architecture

Job title

Professor

E-mail Address

E-mail address

Research field 【 display / non-display

  • Geotechnical engineering

  • Civil engineering materials/Construction/Construction management

Keywords for Research Field 【 display / non-display

  • Deformation and Strength Characteristics

  • Small Strain

  • Geosynthetics

  • Geomaterials (Liquefied Stabilized Soil, Gravel, Base Coase and Subgrade material)

Graduate school・Graduate course, etc. 【 display / non-display

  • Hokkaido University

    1989,Doctoral program,Graduate School, Division of Engineering,Division of Civil Enginnering,Completed,Japan

Graduate school・major, etc. 【 display / non-display

  • Hokkaido University

    1984,Faculty of Engineering,Department of Civil Enginnering,Graduate,Japan

Academic Society 【 display / non-display

  • Japanese GeotechnicalSociety

Academic prize 【 display / non-display

  • ASTM Hogentogler Award

    1996.01.29,ASTM International (米国国際材料試験学会)

  • Award for The Best Paper in Ground Improvement in 1997

    1997.09.10,国際地盤工学会

  • Award for The Best Paper in Geotechnical Engineeringin Hokkaido Branch of JGS

    2003.03.18,地盤工学会北海道支部

  • 地盤工学会功労章

    2010.03.31,地盤工学会

  • 国際ジオシンセティックス学会日本支部論文賞

    2010.12.02,国際ジオシンセティックス学会日本支部

 

建設発生土の再利用

環境を考えると掘削土再利用はこうなる

Purpose of Research

環境にやさしく耐震補強につながる掘削土の開発

建設などで大量に発生する掘削土を再利用することができれば自然環境にもよい。しかしそのまま埋戻しても強度や靭性能が不足する。靭性能を向上させることで、地震などによる急激な破断を防ぎ、地盤の耐震補強にもつながる。

Summary of Research

綿状の古紙を流動化処理土に入れ土質改良する

掘削土にセメントと水を加えた流動化処理土として埋戻しても、固すぎて再度掘り返すことができなければコスト的にも負担がかかる。程よく、粘り強い土にするには流動化処理土に綿状にした古紙を入れて繊維材補強することにより、粘り強い地盤になる。

Research Content

Features / Benefits of Research

1.Point of research 2.Research of novelty
  • 綿状にした古紙を流動化処理土に入れてできる粘り強い地盤
  • 流動化処理土に綿状にした古紙を混合
3.Primacy of Technology 4.Situation of patent-related
  • 靭性能が飛躍的に向上
 

Books 【 display / non-display

  • Pavement Engineering Library 13b,Characteristics and Evaluation of Subgrade and Base Course Matrials

    木幡行宏,関根悦夫,竹内康,佐藤研一,小関裕二,坂本寿信,坪川将丈,公益社団法人 土木学会,第1章 概説,第4章 路床・路盤材料の室内試験における評価方法と材料特性,(p.125),2015.10,978-4-8106-0769-7

  • 土木技術と国際標準・認証制度-わが国土木分野の国際標準化戦略はどうあるべきか?-

    土木学会,2008

  • 土木技術と国際標準

    土木学会,2001

  • 鉄道構造物等設計標準・同解説-開削トンネル-

    運輸省鉄道局監修,鉄道総合技術研究所編,丸善,2001

  • 鉄道構造物等設計標準・同解説-省力化軌道用土構造物-

    運輸省鉄道局監修,鉄道総合技術研究所編,丸善,2000

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Papers 【 display / non-display

  • STUDY ON PRE-MATURE FAILURE OF FLEXIBLE PAVEMENT STRUCTURES IN DEVELOPING COUNTRIES

    Ahmad SHAFEEQ, Yukihiro KOHATA and Yasushi TAKEUCHI,土木学会論文集E1(舗装工学),vol.72,(2),(p.54 ~ 62),2016.08

  • Evaluation of In-Situ Compressive Stiffness of Liquefied-Stabilized Soil Reinforced with Fiber

    H. Q. Duong, Y. Kohata, K. Ozaki and A. Abiru,Japanese Geotechnical Society Special Publication,vol.2,(66),(p.2258 ~ 2263),2016.01

  • Considerations of Holocene Graoud and Its Soil Properties in Ha Noi City

    グェン コン ザン,中山俊雄,杉本隆男,小島義孝,片桐雅明,大石幹太,木幡行宏,Earth Science (Chikyu Kagaku),vol.69,(p.311 ~ 324),2015

  • Strength and Deformation Characteristics of Liquefied Stabilized Soil Reinforced by Fiber Material Prepared at Laboratory and Field

    Hung Quang DUONG, Yukihiro KOHATA, Satoshi OMURA and Keita OZAKI,ジオシンセティックス論文集,vol.第29巻,(p.33 ~ 40),2014.12

  • Study on the time-dependency in deformation properties of uniformly-graded crushed gravels used as railroad ballast

    Ahmad SHAFEEQ, Yukihiro KOHATA and Akiyuki NAGASUE,Railway Engineering,vol.Vol.6,(p.CD ROM ~ ),2011

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International conference proceedings 【 display / non-display

  • A preliminary comparison study on basic soil test methods according to JIS and TCVN

    Do Tuan Anh, Yukihiro Kohata, Kazuma Ashida,the proceedings of Joint Seminar on Environmental Science and Disaster Mitigation Research (JSED 2017),(p.79 ~ 80),CEDAR,2017.03,Muroran

  • Consideration of some soil test results based on Japanese and Vietnamese Standards

    Do Tuan Anh, Yukihiro Kohata, Akinobu Kiya,Porc.of Joint Seminar on Environmental Science and Disaster Mitigation Research 2016 (JSED2016),(p.124 ~ 125),2016.03,Muroran

  • Evaluation of in-situ compressive stiffness of liquefied-stabilized soil reinforced with fiber

    Hung Quang DUONG, Yukihiro KOHATA, Keita OZAKI and Saori ABIRU,Extended Abstracts of the 15th AsianRegional Conference on Soil Mechanics and Geotechnical Engineering,(p.241 ~ ),2015.11,Fukuoka

  • An investigation on ground cave-in in old land fill

    R. Kuwano and Y. Kohata,Proc. of 4th Japan-China Geotechnical Symposium,(p.274 ~ 277),2010

  • Deformation Characteristics of Abraded Granular Materials on Cyclic Loading

    E. Sekine, Y. Kohata,Proc. of 5th Chaina/Japan Workshop on Pavement Technologies,(p.CD-ROM ~ ),2009

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Editorial and Commentary 【 display / non-display

  • 地方小都市の大学からみる「地方創生と学」について

    那須守,木幡行宏,松本茂,土木学会誌,vol.201,(12),(p.8 ~ 11),2016.12

  • 舗装の耐久性向上に資する路床・路盤の重要性

    木幡行宏,舗装,vol.51,(8),(p.1 ~ 2),2016.08

  • 洞爺湖町の橋台崩落/北海道-誰も気づかなかった浸食崩壊-

    木幡行宏,日経コンストラクション,(620),(p.48 ~ 51),2015.07

  • ISO/TC221(ジオシンセティックス)における活動

    木幡行宏・巻内勝彦,土と基礎,vol.Vol.51,(No.7),(p.21 ~ 24),2003

  • 地盤・基礎設計に関するISO・CEN活動の現状

    土木技術,vol.Vol.58,(No.2),(p.46 ~ 51),2003

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Research reports 【 display / non-display

  • Geotechnical Consideration on Sloop Failure in the area of the Lake Shikotsu in 2014

    木幡行宏,室蘭工業大学紀要,(66),(p.59 ~ 66),2017.03

  • 繊維材流動化処理土の三軸せん断特性に及ぼす泥水密度の影響

    佐々木将人、木幡行宏,地盤工学会北海道支部技術報告集,(57),(p.83 ~ 88),2017.02

  • 繰返し載荷履歴を受けた路盤材料の強度・変形特性

    天野友貴、木幡行宏,地盤工学会北海道支部技術報告集,(57),(p.79 ~ 82),2017.01

  • Comparison of physical and consolidation test results between Japanese and Vietnamese Standards

    Do Tuan Anh,木幡行宏,木谷彰伸,地盤工学会北海道支部技術報告集,(56),(p.151 ~ 156),2016.01

  • Effect of degree of saturation and dry density on strength and deformation property of well-graded crushed gravel

    今田裕之,木幡行宏,山本健一,齋藤昌之,地盤工学会北海道支部技術報告集,(56),(p.107 ~ 112),2016.01

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Presentaion at conference, meeting, etc. 【 display / non-display

  • A preliminary comparison study on basic soil test methods according to JIS and TCVN

    Do Tuan Anh,Joint Seminar on Environmental Science and Disaster Mitigation Research (JSED 2017),CEDAR,Proceedings of Joint Seminar on Environmental Science and Disaster Mitigation Research (JSED 2017),(p.79-80),2017.03.03,Muroran,Japan

  • 繊維材混合流動化処理土による埋戻し地盤の強度・変形特性

    木幡行宏,第51回地盤工学研究発表会,公益社団法人 地盤工学会,第51回地盤工学研究発表会講演概要集,(p.585-586),2016.09.15

  • Comparison of water content, liquid limit and coefficient of consolidation by Vietnamese and Japanese Industrial Standard

    Do Tuan Anh,第 51 回地盤工学研究発表会,公益社団法人 地盤工学会,第51回地盤工学研究発表会講演概要集,(p.105-106),2016.09.14,岡山,日本

  • Consideration of some soil test results based on Japanese and Vietnamese Standards

    Do Tuan Anh, Yukihiro Kohata, Akinobu Kiya,Joint Seminar on Environmental Science and Disaster Mitigation Research 2016 (JSED2016),Center of Environmental Science and Disaster Mitigation for Advanced Research, Muroran Institute of Technology,Proc.of Joint Seminar on Environmental Science and Disaster Mitigation Research 2016 (JSED2016),(p.124-125),2016.03.11,Muroran,Japan

  • Evaluation of in-situ compressive stiffness of liquefied-stabilized soil reinforced with fiber

    Hung Quang DUONG, Yukihiro KOHATA, Keita OZAKI and Saori ABIRU,The 15th AsianRegional Conference on Soil Mechanics and Geotechnical Engineering,International Society of Soil Mechanics and Geotechnical Engineering, Japanese Geotechnical Society,Extended Abstracts of the 15th AsianRegional Conference on Soil Mechanics and Geotechnical Engineering,(p.241),2015.11.09,Fukuoka,Japan

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Class subject in charge 【 display / non-display

  • 土の力学

    2017,Department

  • 土の力学

    2017,Department

  • 土質力学II

    2017,Department

  • 土木工学概論

    2017,Department

  • 土木実験

    2017,Department

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International research cooperation activities 【 display / non-display

  • KMK Joint Seminar

    韓国,韓国海洋大学,2016.08