Personnel Information

写真a

Nagai Hiroshi


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 Engineering

Job title

Associate Professor

E-mail Address

E-mail address

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Research field 【 display / non-display 】

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Building structures and materials

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Keywords for Research Field 【 display / non-display 】

  • Soil structure interaction

  • Piled raft foundation

  • Exsisting old pile

  • Screwed pile

  • Seismic response

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

  • Muroran Institute of Technology

    2004，Doctoral program，Graduate School, Division of Engineering，Division of Civil Enginnering and Architecture，Completed，Japan

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

  • Muroran Institute of Technology

    1999，Faculty of Engineering，Department of Civil Enginnering and Architecture，Graduate，Japan

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Degree 【 display / non-display 】

  • Doctor of Engineering

    水平力を受けるパイルド・ラフト基礎の大変形挙動と非線形解析法に関する研究

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Academic Society 【 display / non-display 】

  • Architectural Institute of Japan

  • The Japanese Geotechnical Society

  • International Society for Soil Mechanics and Geotechnical Engineering

  • Japan Association for Earthquake Engineering

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Academic prize 【 display / non-display 】

  • 2021 Outstanding Reviewer Award, Soils and Foundations

    2022.06，Japanese Geotechnical Society

  • 令和元年度地盤工学会賞 論文賞（英文部門）

    2020.06，地盤工学会

  • 平成26年度地盤工学会北海道支部賞

    2015.04，地盤工学会北海道支部

  • 第40回地盤工学研究発表会優秀論文発表者賞

    2005.07，地盤工学会

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Books 【 display / non-display 】

  • 2018年北海道胆振東部地震災害調査報告

    永井宏ほか，日本建築学会，2024.03，9784818920538

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Papers 【 display / non-display 】

  • Simplified calculation on horizontal dynamic impedance of piled raft foundation on layered soil

    Hiroshi Nagai, Tomoki Takai, Yurina Yasuda，Geotechnical and Geological Engineering，2024

  • Pile shaft resistance partially overlapping with backfilled soils of various properties

    Hiroshi Nagai, Yoshiki Kashitani, Kenta Nakamura，International Journal of GEOMATE，vol.27，(123)，(p.92 ～ 99)，2024.11

  • Effects of variation in soil parameters on resistance factors of bearing capacity of piles

    鈴木 比呂子，安 浩輝，鈴木 康嗣，永井 宏，AIJ Jornal of technology and design，vol.30，(76)，(p.1223 ～ 1228)，2024.10

  • Influence of backfilled sand dimensions and location on shaft resistance of piles

    Kenta Nakamura, Hiroshi Nagai，International Journal of GEOMATE，vol.Vol. 25，(110)，(p.197 ～ 204)，2023.10

  • DEFORMATION CHARACTERISTICS OF CONCRETE-FILLED DOUBLE STEEL PIPE PILE SUBJECTED TO HORIZONTAL LOAD AND ITS CALCULATION METHOD

    永井　宏，池田篤則，Journal of Structural Engineering B，vol.Vol.69B，(p.326 ～ 335)，2023.04

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International conference proceedings 【 display / non-display 】

  • Experimental study on lateral resistance of pile with backfilled soil -Effect of backfilled soil density-

    Syunya Kudou, Hiroshi Nagai，Joint Seminar on Environmental Science and Disaster Mitigation Research 2020，(p.82 ～ 83)，2020.03

  • Calculation Method on Vertical Deformation of Concrete-Filled Double Steel Pipe Pile

    Keisuke Adachi, Hiroshi Nagai，Joint Seminar on Environmental Science and Disaster Mitigation Research 2019，(p.24 ～ 25)，2019.03

  • Influence of ground motion level on Foundation Input Motion of Pile Foundation with Old Piles Left Underground

    Kurumi Sato, Hiroshi Nagai，Joint Seminar on Environmental Science and Disaster Mitigation Research 2019，(p.78 ～ 79)，2019.03

  • Analytical study on flexural performance of concrete-filled double steel pipe pile

    Keisuke Adachi, Hiroshi Nagai，Joint Seminar on Environmental Science and Disaster Mitigation Research 2018，(p.75 ～ 76)，2018.03

  • Shear Strain Distribution in Soil around Piled Raft Foundation under Severe Earthquake

    Takanori Mimuro, Hiroshi Nagai，Joint Seminar on Environmental Science and Disaster Mitigation Research 2018，(p.143 ～ 144)，2018.03

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Editorial and Commentary 【 display / non-display 】

  • 地盤工学会論文賞(英文部門)を受賞して

    永井宏，土屋勉，島田正夫，地盤工学会誌，vol.Vol.68，(No.8)，2020.08

  • 第49回地盤工学研究発表会 総括 ６．地盤と構造物 杭基礎④

    永井　宏，地盤工学会誌，vol.Vol.62，(No.11/12)，2014.12

  • 第48回地盤工学研究発表会 総括　６．地盤と構造物 鉛直③

    永井　宏，地盤工学会誌，vol.Vol.61，(No.11/12)，2013.12

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Research reports 【 display / non-display 】

  • Experimental study on shaft resistance of new piles overlapping in backfilled clayey soil columns - Effect of compressive strength of backfilled clayey columns on pile shaft resistance -

    樫谷祥季，中村健太，永井宏，日本建築学会北海道支部研究報告集，(No.97)，(p.149 ～ 152)，2024.06

  • Effect of multi-layer and shear wave velocity of soil on the horizontal dynamic impedance of piled raft foundations and simplified calculations

    高井友葵，永井宏，安田優里菜，日本建築学会北海道支部研究報告集，(No.97)，(p.445 ～ 448)，2024.06

  • A study on calculation for stresses in the ground due to shared loads of piles comprising piled raft foundations and its application to simplified calculation of consolidation settlement

    宮内律郎，永井宏，高井友葵，日本建築学会北海道支部研究報告集，(No.96)，(p.363 ～ 366)，2023.06

  • Influence of ground condition on dynamic horizontal impedance of piled raft foundation and its calculation method

    安田優里菜，高井友葵，永井宏，日本建築学会北海道支部研究報告集，(No.96)，(p.13 ～ 116)，2023.06

  • Effect of backfilled sand dimensions and location under different conditions on shaft resistance of newly constructed piles

    中村健太，永井宏，森駿也，日本建築学会北海道支部研究報告集，(No.96)，(p.57 ～ 60)，2023.06

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

  • Simplified calculation on horizontal dynamic impedance of piled raft foundation on multi layered soil. Part 2: Analysis and evaluation of the effect of S-wave velocity on surface soils

    高井友葵，永井宏，安田優里菜，日本建築学会，日本建築学会大会学術講演梗概集，(p.495-496)，2024.08

  • Simplified calculation on horizontal dynamic impedance of piled raft foundation on multi layered soil

    安田優里菜，高井友葵，永井宏，日本建築学会，日本建築学会大会学術講演梗概集，(p.635-636)，2023.09

  • Effects of variation in soil parameters on resistance factor of piles

    鈴木比呂子，安浩輝，鈴木康嗣，永井宏，日本建築学会，日本建築学会大会学術講演梗概集，(p.403-404)，2023.09

  • Comparison of horizontal behavior in embedded pilled raft foundations by different numerical analysis methods

    岸俊甫，土佐内優介，山黒寛矢，永井宏，日本建築学会，日本建築学会大会学術講演梗概集，(p.639-640)，2023.09

  • Vertical bearing performance of piled raft foundations on soft clayey ground by in-situ loading tests Part 1: Summary and results of in-situ loading tests

    高井友葵，永井宏，井出義人，金井重夫，日本建築学会，日本建築学会大会学術講演梗概集，(p.547-548)，2022.09

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Class subject in charge 【 display / non-display 】

  • 建築学演習Ⅱ

    2024，Department

  • 建築構造設計演習

    2024，Department

  • 建築法規

    2024，Department

  • 建築学演習Ⅲ

    2024，Department

  • 建築構造力学Ⅱ

    2024，Department

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