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Affiliation |
Faculty of Urban Innovation, Division of Urban Innovation |
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Job Title |
Professor |
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Research Fields, Keywords |
交通地盤工学, 地盤改良, 地盤環境, 地盤防災, 土質試験 |
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Mail Address |
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Related SDGs |
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HAYANO Kimitoshi
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ORCID
The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 Fundamental study on the acceleration of the neutralization of alkaline construction sludge using a CO2 incubator 2020.08
【Published Thesis】 Integrated risk of rail buckling in ballasted tracks at transition zones and its countermeasures 2019.04
【Published Thesis】 PS灰系改良土の強度特性に及ぼす養生効果とその要因に関する基礎的検討 2018
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 Neutralization and CO<sub>2</sub> fixation behavior of alkaline recycled soil using column tests with CO<sub>2</sub> ventilation(ACTA GEOTECHNICA) 2024.10
【Published Thesis】 Effects of stabilizers on CO2 fixation capacity in neutralization of alkali construction sludge(SOILS AND FOUNDATIONS) 2023.10
【Published Thesis】 Investigation of premature failure mechanism in pavement overlay of national highway of Bangladesh 2022.02
【Published Thesis】 A new approach for evaluating lateral resistance of railway ballast associated with extended sleeper spacing 2021.12
【Published Thesis】 Evaluation of CO2 captured in alkaline construction sludge associated with pH neutralization 2021.12
Education 【 display / non-display 】
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-1997
The University of Tokyo Department of Civil Engineering Doctor Course Unfinished Course
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-1996
The University of Tokyo Department of Civil Engineering Master Course Completed
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-1994
The University of Tokyo Department of Civil Engineering Graduated
Degree 【 display / non-display 】
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Doctor of Engineering - The University of Tokyo
Campus Career 【 display / non-display 】
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2014.4
Duty Yokohama National UniversityFaculty of Urban Innovation Division of Urban Innovation Professor
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2011.4-2014.3
Duty Yokohama National UniversityFaculty of Urban Innovation Division of Urban Innovation Associate Professor
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2007.4-2011.3
Duty Yokohama National UniversityFaculty of Engineering Associate Professor
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2023.4
Concurrently Yokohama National UniversityInstitute for Multidisciplinary Sciences Professor
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2017.4
Concurrently Yokohama National UniversityCollege of Urban Sciences Department of Civil Engineering Professor
External Career 【 display / non-display 】
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2011.10-2012.3
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2009.10-2010.3
Tokyo Metropolitan University Visiting Lecturer
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2005.4-2007.3
Independent Administrative Institution, Port and Airport Research Institute. Airport Research Center Project Researcher
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2003.4-2007.3
Geotechnical and Engineering Division, Independent Administrative Institution, Port and Airport Research Institute. Senior Researcher
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2001.4-2003.3
Soil Stabilization Division, Geotechnical and Engineering Division, Independent Administrative Institution, Port and Airport Research Institute.
Academic Society Affiliations 【 display / non-display 】
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2020
廃棄物資源循環学会
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2012
地すべり学会
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1997
国際地盤工学会(ISSMGE)
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1996
Japan Society of Engineering Geology
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1993
Japan Society of Civil Engineers
Research Areas 【 display / non-display 】
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Disaster prevention engineering
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Civil engineering (materials, implementation, construction management)
Research Career 【 display / non-display 】
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交通地盤構造物の健全度診断・耐震性能評価
Cooperative Research
Project Year：
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地盤改良技術の開発
Cooperative Research
Project Year：
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発展途上国の土構造物マネジメント
The Other Research Programs
Project Year：
Books 【 display / non-display 】
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地盤工学におけるリスク共生（藤野陽三・曽我健一共編）
藤野 陽三, 曽我 健一 (編集) （ Role： Contributor , 交通地盤工学におけるリスク低減）
鹿島出版会 （ ISBN:4306024792 ）
Total pages：240 Responsible for pages：51-66 Language：Japanese Book type：Scholarly book
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図説 わかる土質力学
菊本統，西村聡，早野公敏（ Role： Joint author）
学芸出版社 （ ISBN:4761532211 ）
Total pages：208 Language：Japanese Book type：Textbook, survey, introduction
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Geotechnical Pavement Research in Japan Ⅱ - Final report
（ Role： Contributor）
The Japanese Geotechnical Society
Language：English Book type：Report
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地盤材料試験の方法と解説
地盤工学会 (著) 分担執筆（ Role： Joint author）
（社）地盤工学会 （ ISBN:9784886440839 ）
Language：Japanese Book type：Scholarly book
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セメント改良土の物性と試験方法に関する研究委員会報告書
分担執筆（ Role： Joint author）
（社）地盤工学会
Language：Japanese Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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堆積軟岩の破壊前変形特性
早野公敏
東京大学博士論文 2001.3
No Setting Single Work
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三軸試験による堆積軟岩の変形特性
早野公敏
東京大学修士論文 1996.3
No Setting Single Work
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砂質土の液状化後の圧縮特性
早野公敏
東京大学卒業論文 1994.3
No Setting Single Work
Papers 【 display / non-display 】
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Xu, C; Hayano, K
TRANSPORTATION GEOTECHNICS 55 2025.11
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Pathak, GK; Hayano, K
GEOTECHNICAL AND GEOLOGICAL ENGINEERING 43 ( 6 ) 2025.7
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Dynamic evaluation method for assessing lateral stability of ballasted railway tracks with defects
Xu Chong, Hayano Kimitoshi, Nakamura Takahisa
Construction and Building Materials 484 141570 2025.5
Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier Joint Work
Lateral stability is essential for the safe and efficient operation of ballasted railway tracks, ensuring proper alignment and reducing derailment risks. Conventional evaluation methods, such as single-sleeper pullout tests, are time-consuming and lack scalability. In this study, we propose a novel dynamic loading evaluation method for the rapid assessment of lateral stability in ballasted tracks with various defects. Using 1/9-scale track models, we examined the effects of reduced ballast density, localized ballast loss, and sleeper settlement on the lateral resistance through both static and dynamic tests. In the static tests, lateral resistance was measured by pulling a central sleeper under controlled conditions. The results demonstrated a clear correlation between the ballast condition and resistance. For example, the tracks with a ballast density of 1.4 g/cm³ showed approximately 50% lower resistance than those with 1.6 g/cm³. Similarly, significant reductions could be observed or up to 100% ballast loss and five unsupported sleepers. The dynamic tests used a mobile vibrator that induced lateral excitation while traversing a track. The lateral accelerations were measured using a vibrator and selected sleepers. The tracks with a loosened ballast exhibited fewer differences between the vibrator and sleeper amplitudes, indicating reduced stability. Unsupported sleepers produced distinct "M-shaped" waveforms, owing to increased resistance at oversupported neighboring sleepers from redistributed loads. A key finding is the strong linear correlation between the lateral displacement of the vibrator in the dynamic tests and the lateral resistance in the static tests. This relationship enables an accurate estimation of lateral resistance from dynamic parameters, offering a scalable and efficient assessment method. The proposed dynamic method eliminates labor-intensive procedures and offers broader diagnostic coverage, making it effective for post-disaster inspections, maintenance planning, and routine evaluations that require rapid condition assessment.
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Jamil, MAB; Hayano, K
PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON TRANSPORTATION GEOTECHNICS, VOL 7, ICTG 2024 408 23 - 31 2025
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Withanage, KR; Hayano, K; Kang, X; Yamauchi, H
CASE STUDIES IN CONSTRUCTION MATERIALS 21 2024.12
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
Review Papers 【 display / non-display 】
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交通地盤工学に関する基礎講座 第７章 鉄道軌道の設計施工・維持管理
桃谷尚嗣, 中村貴久, 川崎祐征, 早野公敏, 岡安崇史, 石川達也
地盤工学会誌 69 ( 3 ) 54 - 62 2021.3 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Joint Work
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交通地盤工学に関する基礎講座 第６章 空港舗装の設計施工・維持管理
坪川将丈, 河村直哉, 早野公敏
地盤工学会誌 69 ( 2 ) 40 - 47 2021.2 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Joint Work
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吸水性材の改良原理と PS 灰系改質材を添加した改良土の特性
片桐雅明, 早野公敏
地盤工学会誌 68 ( 8 ) 17 - 20 2020.8 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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第5回日中地盤工学シンポジウム セッション報告2
Hossain Md. Shahin, 早野公敏
地盤工学会誌 61 ( 10 ) 33 2013
Language：Japanese Publishing type：Meeting report Joint Work
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學の庭から (研究者紹介)(23) プラクティカルとアカ デミックの両立を目指して
早野公敏
舗装 47 ( 12 ) 36 - 38 2012
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Single Work
Industrial Property Rights 【 display / non-display 】
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低濃度炭酸ガスによる中性再生土製造方法
鈴木孝行、定光孝義、山内裕元、守屋勉、早野公敏
Application no：特願2022-036240 Date applied：2022.3.9
Announcement no：特開2023-131460 Date announced：2023.9.2
Patent/Registration no：特許7702907 Date registered：2025.6.2 Date issued：2025.7.4
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再生土製造システムおよび再生土製造方法
鈴木孝行、山内裕元、守屋勉、早野公敏
Application no：特願2016-249356 Date applied：2016.12.22
Announcement no：特開2018-103071 Date announced：2018.7.5
Patent/Registration no：特許6559644 Date registered：2019.7.26 Date issued：2019.8.1
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舗装道路切断水の処理方法及び処理装置
早野 公敏，松本 亜里紗，山口 裕央，星野 繁文，高橋 俊樹，松戸 大輔
Application no：特願2016-112894 Date applied：2016.6.6
Announcement no：特開2017-217593 Date announced：2017.12.14
Patent/Registration no：特許第6792838 Date registered：2020.11.11 Date issued：2020.12.2
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粘性土の改質処理方法および造粒固化方法
早野公敏, 富吉俊介, 西茜, 山内裕元, 和栗成樹
Application no：特願2015-133046 Date applied：2015.7.1
Announcement no：特開2017-13007 Date announced：2017.1.19
Patent/Registration no：特許第6414518号 Date registered：2018.10.12 Date issued：2018.10.31
Country of applicant：Domestic
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液状泥土の造粒固化方法
早野公敏，佐々木孝太, 山内裕元, 和栗成樹
Applicant：ジャイワット株式会社, 国立大学法人横浜国立大学, ｄｏｍｉ環境株式会社
Application no：特願2014-239213 Date applied：2014.11.26
Announcement no：特開2015-127050 Date announced：2015.7.9
Patent/Registration no：特許第6260038号 Date registered：2017.12.22 Date issued：2018.1.17
Country of applicant：Domestic
Awards 【 display / non-display 】
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横浜国立大学発明表彰（功績賞）
2025.4 横浜国立大学
Individual or group name of awards：早野 公敏
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地盤工学会関東支部特別貢献賞
2025.4 地盤工学会関東支部
Individual or group name of awards：早野 公敏
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土木学会第19回舗装工学講演会奨励賞（共同）
2014.12 （公社）土木学会舗装工学委員会
Individual or group name of awards：中村貴久，桃谷尚嗣，早野公敏，小川隆太
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土木学会第42回岩盤力学に関するシンポジウム優秀講演論文賞（共同）
2014.1 （公社）土木学会岩盤力学委員会
Individual or group name of awards：佐藤弥那子，田井絵理子，早野公敏，谷和夫
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平成23年度地盤工学会技術開発賞（共同）
2012.6 （公社）地盤工学会
Individual or group name of awards：水上純一，前川亮太，坪川将丈，早野公敏
Grant-in-Aid for Scientific Research 【 display / non-display 】
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粗粒材の長期劣化を考慮した新たな交通施設の維持管理方法：経験知から科学知の保守へ
2019.4 - 2023.3
科学研究費補助金 Grant-in-Aid for Scientific Research(B)
Investigator(s)：早野 公敏
Grant type：Competitive
Preferred joint research theme 【 display / non-display 】
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土質物性の調査・評価に関するテーマ
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地盤改良技術の開発に関するテーマ
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地盤構造物の維持管理に関するテーマ
Past of Collaboration and Commissioned Research 【 display / non-display 】
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地震時における道床横抵抗力向上のための対策工に関する研究
Offer organization: 公益財団法人 鉄道総合技術研究所 Cooperative Research within Japan
Project Year： 2014.12 - 2015.3
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液状泥土のほぐし造粒固化の手法に関する研究
Offer organization: ジャイワット株式会社 Cooperative Research within Japan
Project Year： 2014.6 - 2016.3
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舗装切断水の再利用法に関する研究
Offer organization: 東信工業株式会社 Cooperative Research within Japan
Project Year： 2014.4 - 2016.3
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加振時におけるバラスト軌道の道床横抵抗力に関する研究
Offer organization: 公益財団法人 鉄道総合技術研究所 Cooperative Research within Japan
Project Year： 2013.9 - 2014.3
Charge of on-campus class subject 【 display / non-display 】
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2025 Advanced Theory of Geotechnical Design
Graduate School of Urban Innovation
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2025 Practical Project Learning
Graduate School of Urban Innovation
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2025 Field Trips
Graduate School of Urban Innovation
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2025 Practicum and Training Rrogram
Graduate School of Urban Innovation
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2025 Geotechnical and Pavement Design
Graduate School of Urban Innovation
Committee Memberships 【 display / non-display 】
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横浜市水道局技術監理課総合評価委員会
2015.4 委員
Committee type：Municipal
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（公社）地盤工学会関東支部神奈川県グループ
2015.4 幹事
Committee type：Academic society
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Transportation Geotechnics 国内委員会
2014.12 委員
Committee type：Academic society
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横須賀地区等トンネル検討委員会
2014.7 委員
Committee type：Government
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（公社）地盤工学会関東支部評議員
2014.4
Committee type：Academic society
Social Contribution(Extension lecture) 【 display / non-display 】
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地盤セミナー
（株）五洋建設技術研究所 那須 2014.11
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フジテレビ スーパーニュース 取材協力（コメント）
2014.11
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バングラデッシュ舗装セミナー
バングラデッシュ運輸省道路局道路・国道部（RHD） バングラデッシュ・ダッカ 2014.9
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上海交通大学SSSVセミナー
横浜国立大学海洋空間のシステムデザイン教室 横浜 2014.2
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対話 都市イノベーションを廻る思考
横浜国立大学都市イノベーション学府 横浜 2013.12