Research reports - Nagai Hiroshi
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Experimental study on pulling resistance of screwed pile - Effect of installation method on resistance and vertical stiffness of screwed pile -
峯知宏,永井宏,島田正夫,地盤工学会北海道支部技術報告集,(No.57),(p.223 ~ 230),2017.02
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An analytical study on foundation input motion of new pile foundation with old piles left underground - Study on configuration of old pile -
葛西勇紀,永井宏,土屋勉,日本建築学会北海道支部研究報告集,(No.89),(p.43 ~ 46),2016.06
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Seismic response of piled raft foundation by FEM analysis -Influence of ground motion level-
三室貴憲,永井宏,土屋勉,日本建築学会北海道支部研究報告集,(No.89),(p.91 ~ 94),2016.06
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Model Tests on Installation Method to Bearing Capacity of Screwed Piles
峯知宏,土屋勉,永井宏,島田正夫,帰山翼,梶谷陵一,藤原耕太,日本建築学会北海道支部研究報告集,(No.89),(p.55 ~ 58),2016.06
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A practical approach on behavior of rectangular piled raft foundation subject to vertical load
川淵基弘,土屋 勉,永井 宏,北原進之介,日本建築学会北海道支部研究報告集,(No.88),(p.113 ~ 116),2015.06
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A study on lateral resistance of screwed pile with soil improvement around pile head - Effects of soil improvement specification and site ground condition -
永井 宏,土屋 勉,池田篤則,佐藤雄太,古里光輝,日本建築学会北海道支部研究報告集,(No.88),(p.93 ~ 96),2015.06
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Model tests on pulling resistance of screwed pile-IV
岡 聖也,土屋 勉,永井 宏,島田正夫,中沢楓太,峯 知宏,佐藤 洋,東 智貴,日本建築学会北海道支部研究報告集,(No.88),(p.81 ~ 84),2015.06
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A practical approach on behavior of piled raft foundation subject to vertical load
北原進之介,土屋 勉,永井 宏,日本建築学会北海道支部研究報告集,(No.88),(p.73 ~ 76),2015.06
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Impedance of piled raft foundation and seismic response considering soil-structure interaction
村本恵一,永井 宏,土屋 勉,日本建築学会北海道支部研究報告集,(No.88),(p.65 ~ 68),2015.06
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Lateral resistance of screwed pile with soil improvement around pile head. - In-situ loading test and numerical analysis -
永井 宏,土屋 勉,池田篤則,佐藤雄太,地盤工学会北海道支部技術報告集,(No.55),(p.1 ~ 8),2015.01
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Analytical study on lateral resistance of screwed pile with soil improvement around pile head
葛西勇紀,永井 宏,土屋 勉,宇津見知樹,池田篤則,日本建築学会北海道支部研究報告集,(No.87),(p.53 ~ 56),2014.06
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A practical approach on behavior of piled raft foundations subject to vertical load.
北原進之介,土屋 勉,永井 宏,日本建築学会北海道支部研究報告集,(No.87),(p.151 ~ 156),2014.06
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Seismic response analysis of piled raft foundation considering soil-structure interaction - Influence of natural period of super-structure and subsurface structures -
阿部一茂,永井 宏,土屋 勉,日本建築学会北海道支部研究報告集,(No.87),(p.135 ~ 138),2014.06
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Model tests on pulling resistance of screwed pile-Ⅲ
岡 聖也,土屋 勉,永井 宏,島田正夫,中沢楓太,岩倉 栞,小塚将悟,千葉紘平,日本建築学会北海道支部研究報告集,(No.87),(p.111 ~ 114),2014.06
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PIV analysis for the behavior of soils around pile subjected to pullout load-Ⅱ
大江隆寛,土屋 勉,永井 宏,島田正夫,山根純平,佐藤貴博,日本建築学会北海道支部研究報告集,(No.87),(p.77 ~ 80),2014.06
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Study on soil stresses during pile installation and loading test of screwed pile.
島田正夫,土屋 勉,永井 宏,遠藤奨子,増田聖視郎,日本建築学会北海道支部研究報告集,(No.86),(p.193 ~ 196),2013.06
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Seismic response an alysis of piled raft foundation considering soil-structure interaction - Influence of subsurface structures
阿部一茂,永井 宏,土屋 勉,南 賢治,日本建築学会北海道支部研究報告集,(No.86),(p.53 ~ 56),2013.06
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A practical approach on behavior of piled raft foundations subject to vertical load. (Vertical stiffness and pile head load of piled raft foundation)
北原進之介,土屋 勉,永井 宏,日本建築学会北海道支部研究報告集,(No.86),(p.169 ~ 172),2013.06
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PIV analysis for the behavior of soils around pile subjected to vertical load.
福田 健,土屋 勉,永井 宏,島田正夫,大江隆寛,櫻井直樹,日本建築学会北海道支部研究報告集,(No.86),(p.149 ~ 152),2013.06
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PIV analysis for the behavior of soils around pile subjected to pullout load.
大江隆寛,土屋 勉,永井 宏,島田正夫,福田 健,梅田 光,日本建築学会北海道支部研究報告集,(No.86),(p.129 ~ 132),2013.06