|
Title |
Professor |
|
Laboratory Address |
東京都世田谷区桜丘1-1-1 7号館1階 社会基盤工学研究室 |
|
Laboratory Phone number |
+81-3-5477-2342 |
|
Contact information |
|
|
External Link |
|
|
|
KAWANA Futoshi Professor |
From School 【 display / non-display 】
-
Tokyo University of Science Faculty of Science and Engineering Graduated
1993.04 - 1997.03
Country：Japan
From Graduate School 【 display / non-display 】
-
Tokyo University of Science Graduate School, Division of Science and Engineering Doctoral program (second term) Completed
1999.04 - 2002.03
Country：Japan
Degree 【 display / non-display 】
-
博士（工学） ( 2002.03 東京理科大学 )
-
修士（工学） ( 1999.03 東京理科大学 )
-
学士（工学） ( 1997.03 東京理科大学 )
Employment Record in Research 【 display / non-display 】
-
Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering Assistant Professor
2013.09 - 2015.03
-
Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering Associate Professor
2015.04 - 2019.03
-
Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering Professor
2019.04
Professional Memberships 【 display / non-display 】
-
NPO 舗装診断研究会
2014.04
-
農業農村工学会
2013.12
-
地盤工学会
2006.04
-
土木学会
1998.03
Research Areas 【 display / non-display 】
-
Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Structure engineering and earthquake engineering
-
Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Civil engineering material, execution and construction management
Qualification and License 【 display / non-display 】
-
Certified Boiler Operator (second class)
-
危険物取扱者乙種4類
Papers 【 display / non-display 】
-
COMPRESSIVE STRAIN ESTIMATION METHOD OF GRANULAR BASE OF ASPHALT PAVEMENT USING FWD DEFLECTION CURVETURE Reviewed
TAKEUCHI Yasushi, YAMAMOTO Naoki, KAWANA Futoshi, YABU Masayuki, WATANABE Kazuhiro
Infrastructure Maintenance Practices 3 ( 1 ) 40 - 47 2024
Language：Japanese Publishing type：Research paper (conference, symposium, etc.) Publisher：Japan Society of Civil Engineers
<p> In this study, as a method for evaluating the soundness of the granular base directly from the FWD deflection shape, we focused on the granular base compressive strain prediction equation shown in the NCHRP report. Then, the accuracy of the NCHRP’s prediction formula was using the FWD survey results on the national highway was verified, and based on the FWD operating conditions in Japan, a new prediction equation establish method was examined. As a result, it was found that the prediction equation of NCHRP tends to deviate from analytical results of FWD using the multilayered elasticity theory (MLET). In addition, the MLET analysis results based on the FWD operating conditions in Japan were used to formulate the compressive strain prediction equation and the temperature correction equation, and the threshold for the compressive strain soundness evaluation was shown.</p>
-
Evaluation of the Effect of Interlayer Bonding Condition on the Deterioration of Asphalt Pavement Reviewed
Wakabayashi Yuya, Takeuchi Yasushi, Kawana Futoshi, Watanabe Kazuhiro
Transportation Research Record: Journal of the Transportation Research Board 2677 ( 7 ) 500 - 508 2023.02
Language：English Publishing type：Research paper (international conference proceedings) Publisher：SAGE Publications
<jats:p> In this study, to investigate the effect of interlayer bonding condition on the deterioration of asphalt pavement, we conducted numerical analysis based on multi-layer elastic theory, verification of numerical analysis results by experiments on a full-scale test track, and comparison of the progress of deterioration based on accelerated loading tests conducted on the test pavement. Firstly, the analysis indicated that stronger tensile strain could occur on the upper side of the interlayer when the interlayer bonding weakens. Furthermore, the test pavement simulating interlayer debonding showed the same strain tendency as the analysis. These results suggest that if the interlayer debonding continues, the pavement may suffer early fatigue failure. On the other hand, there are some results that are not consistent with those of the analysis, such as the magnitude of deflection in the test pavement; thus, further investigation is required. Furthermore, because of the accelerated loading on the test pavement, the sections where the layers were debonded immediately after construction became bonded. Since the deflection of the test pavement did not change significantly from that immediately after construction, and no conspicuous damage such as cracks was observed on the road surface, it is considered necessary to continue follow-up surveys. </jats:p>
-
KAWANA Futoshi, KOUNO Asako, TAKEUCHI Yasushi
Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 78 ( 2 ) I_100 - I_108 2023
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers
<p> In this study, to evaluate the influence of variability of the design variable on calculated strain for asphalt pavement, Monte Carlo simulation was demonstrated. The results are summarized as follows. (1) The design parameters having the greatest influence on the horizontal strain variability at the bottom of the asphalt layer are asphalt elastic modulus, base elastic modulus and asphalt thickness. (2) The design parameters having the greatest influence on the vertical strain variability at the top of the subgrade are layer thickness, subgrade elastic modulus and subgrade Poisson’s ratio. (3) In the case of thick asphalt layer, it was confirmed that the coefficient of variation of the strain became the constant value without depending on pavement structure and elastic modulus if coefficient of variation of each design variable was given. (4) On the other hand, when thickness of asphalt layer was thin, coefficient of variation of the strain greatly changed depending on pavement structure and elastic modulus.</p>
-
STUDY ON ESTIMATION METHOD OF RESILIENT MODULUS MATERIAL CONSTANTS OF SUBGRADE USING PORTABLE FWD Reviewed
TAKEUCHI Yasushi, KAWANA Futoshi, YAMANAKA Koichi, KOHATA Yukihiro, SEKINE Etsuo
Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 78 ( 1 ) 40 - 51 2022
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers
<p> In this study, in order to measure quickly the results equivalent to the <i>M<b>r</b></i> test in the field and to enable appropriate bearing capacity evaluation of subgrade in the theoretical structural design of pavement, estimation method of material parameters used for <i>M<b>r</b></i> calculation from portable FWD test results using the multilayered theory was examined. As a result, it was found that the calculation point can be set from the forward analysis using the multilayered elastic theory, and that the material parameters can be obtained using regression equation of <i>M<b>r</b></i> from the stress state at the calculation point. In addition, by analyzing past <i>M<b>r</b></i> test results, it was found that the depth of the calculation point and the elastic modulus of the subgrade can be approximated by the linear equation.</p>
-
路床のレジリエントモデュラスを用いた小型FWD試験の順解析 Reviewed
山中光一，竹内康，川名太，峯岸邦夫
土木学会論文集E1（舗装工学） 77 ( 2 ) I_225 - I_231 2021
Language：Japanese Publishing type：Research paper (scientific journal)
Books and Other Publications 【 display / non-display 】
-
舗装工学ライブラリィー14 非破壊試験による舗装のたわみ測定と構造評価
松井邦人他（ Role： Joint author）
丸善出版株式会社 2015.11 （ ISBN:978-4-8106-0767-3 ）
Language：Japanese Book type：Scholarly book
Misc 【 display / non-display 】
-
農道の維持管理に資するFWD試験データの有効的な活用方法に関する検討
川名太，竹内康，小梁川雅，松井邦人
農村道路・材料施工 ( 1 ) 11 - 16 2015.11
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Publisher：農業農村工学会
農道の一般的な構造評価の方法を解説するとともに，動的逆解析などの最新の構造評価手法を紹介した．
-
最大たわみを用いた動的逆解析手法の検討
川名太，小梁川雅，竹内康，寺田剛，堀内智司，松井邦人
舗装 50 ( 5 ) 12 - 16 2015.05
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：建設図書
FWD試験で得られるたわみデータの最大値に注目し，舗装の構造評価を行う動的逆解析手法の提案を行った．また，ホワイトトッピング舗装上で得られた試験データを用いて，本手法により実道の舗装の構造評価を試みた．
-
重荷重舗装に係わる舗装技術について
川名太，八谷好高
アスファルト 57 ( 230 ) 40 - 46 2014.12
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：一般社団法人 日本アスファルト協会
重荷重舗装に係わる設計，維持管理および材料に関する現状の技術を総括した．
-
走行型路面たわみ測定試験機の現状と我が国における取組み
松井邦人，久保和幸，寺田剛，川名太
土木技術資料 ( 12 ) 10 - 13 2013.12
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：（一財）土木研究センター
Honours, Awards and Prizes 【 display / non-display 】
-
The 7th international Committee on Road and Airfield Pavement Technology，2011．Best Paper Award
2011.08 international Committee on Road and Airfield Pavement Technology
Futoshi KAWANA, Naoya KAWAMURA, Ryouta MAEKAWA
Award type：Award from international society, conference, symposium, etc. Country：Japan
Presentations 【 display / non-display 】
-
逆解析手法の違いが舗装の寿命評価に与える影響
川名 太，竹内 康，小梁川 雅，松井 邦人
土木学会第71回年次学術講演会（於東北大学） 2016.09
Event date： 2016.09
Language：Japanese Presentation type：Oral presentation (general)
動的逆解析および静的逆解析で得られた弾性係数を用いて，舗装の疲労寿命を計算し，その差異について考察した．
-
動的たわみ測定装置（Moving Wheel Deflectometer）の開発と 舗装の健全度評価に関する研究 ～中型車両による測定結果～
川名 太，竹内 康，松井 邦人
土木学会第７０回年次学術講演会（於岡山大学） 2015.09
Event date： 2015.09
Language：Japanese Presentation type：Oral presentation (general)
移動式連続たわみ測定装置の開発状況および測定例について，報告を行った．
-
広域を対象とした舗装の荷重支持性能の調査方法に関する検討
川名太，竹内康，寺田剛，堀内智司，松井邦人
農村道路研究部会 2014.11
Event date： 2014.11
Language：Japanese Presentation type：Oral presentation (general)
舗装の移動式連続たわみ測定装置を開発し，その適用性について検討を行った．本研究では，試験で得られた３地点の変位データを用いてたわみを評価する方法について提案を行い，既往の調査方法の結果と同等の結果が得られることが確認された．
-
衝撃載荷試験時に基盤が舗装の応答に与える影響について
川名 太，小梁川 雅，竹内 康
土木学会第６９回年次学術講演会（於大阪大学） 2014.09
Event date： 2014.09
Language：Japanese Presentation type：Oral presentation (general)
衝撃荷重に対する舗装の応答を解析し，載荷点から離れ対置では基盤層での反射波の影響が生じることを確認した．
-
アンケート調査に基づく東日本大震災における路面下空洞の発生傾向の分析
川名太，寺田剛，久保和幸
第30回日本道路会議 2013.10 日本道路協会
Event date： 2013.10
Language：Japanese Presentation type：Oral presentation (general)
Venue：都市センターホール
東日本大震災において被災した自治体を対象にアンケート調査を実施して，舗装の損傷状況および路面下空洞の発生傾向を確認した．また，路面のたわみに基づいて，陥没事故を引き起こす可能性のある空洞を検出できる可能性を示した．
Committee Memberships 【 display / non-display 】
-
土木学会 舗装工学委員会 E1分冊編集小委員会
2017.04
Committee type：Academic society
-
土木学会 舗装工学委員会 舗装工学論文集編集小委員会
2015.06 - 2018.05
Committee type：Academic society
-
土木学会 舗装工学委員会重荷重舗装小委員会幹事長
2014.06 - 2017.05
Committee type：Academic society
-
土木学会 舗装工学委員会舗装教育小委員会委員
2014.06 - 2016.05
Committee type：Academic society
-
土木学会 舗装工学委員会舗装構造小委員会委員
2014.04 - 2016.05
Committee type：Academic society