JP4783701B2 - 地盤埋設杭の支持力試験方法および試験装置 - Google Patents
地盤埋設杭の支持力試験方法および試験装置 Download PDFInfo
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- JP4783701B2 JP4783701B2 JP2006248116A JP2006248116A JP4783701B2 JP 4783701 B2 JP4783701 B2 JP 4783701B2 JP 2006248116 A JP2006248116 A JP 2006248116A JP 2006248116 A JP2006248116 A JP 2006248116A JP 4783701 B2 JP4783701 B2 JP 4783701B2
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Description
σ=F×H/E/A
ここで、荷重方向のクッション材21の変形量:σ
衝突荷重の大きさ:F
クッション材21の厚み:H
クッション材21の断面積:A
12 坑
14 杭頭部
16 計測器
18 錘
20 可塑性クッション材
Claims (2)
- 地盤中に埋設された杭の杭頭部に、上方から錘を落下させて、その際の前記錘の衝撃に基づいて、前記杭の支持力を求める地盤埋設杭の支持力の試験方法において、
前記杭頭部上に非可塑性クッション材を複数枚積層して載置し、前記錘を落下させた際の衝撃により、前記非可塑性クッション材を圧縮変形させる地盤埋設杭の支持力試験方法であって、
前記非可塑性クッション材は、複数枚を積層した際に、上下方向に隣接する前記非可塑性クッション材間に空気層を有し、
前記空気層は、前記非可塑性クッション材の表面に、粉体スペーサを介在させることにより形成することを特徴とする地盤埋設杭の支持力試験方法。 - 地盤中に埋設された杭の杭頭部に、当該杭頭部の上方から錘を落下させた際の、前記錘の落下衝撃による、前記杭の載荷荷重と変位とを計測器で測定し、得られた測定値に基づいて前記杭の支持力を求める地盤埋設杭の支持力の試験装置において、
前記杭頭部上に空気層が介在するようにして複数枚が積層載置され、前記錘の落下衝撃により圧縮変形する非可塑性クッション材を有し、
前記空気層は、前記非可塑性クッション材の表面に、粉体スペーサを介在させることにより形成することを特徴とする地盤埋設杭の支持力試験装置。
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JP2006248116A JP4783701B2 (ja) | 2006-09-13 | 2006-09-13 | 地盤埋設杭の支持力試験方法および試験装置 |
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JP2008069535A JP2008069535A (ja) | 2008-03-27 |
JP4783701B2 true JP4783701B2 (ja) | 2011-09-28 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109415882A (zh) * | 2016-06-27 | 2019-03-01 | Osmos集团公司 | 检测方法 |
WO2020103838A1 (zh) * | 2018-11-20 | 2020-05-28 | 山东大学 | 高速液压夯夯实地基承载力实时确定方法及系统 |
CN111622276A (zh) * | 2020-05-26 | 2020-09-04 | 武汉弘泰建筑工程质量检测有限公司 | 单体桩基竖向抗压拔性能检测方法 |
Families Citing this family (4)
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CN102877492A (zh) * | 2012-10-31 | 2013-01-16 | 东南大学 | 一种负摩阻力桩土位移测量装置 |
CN206245358U (zh) * | 2016-11-15 | 2017-06-13 | 广东中科华大工程技术检测有限公司 | 基桩检测桩顶保护装置 |
JP2021102842A (ja) * | 2019-12-24 | 2021-07-15 | 株式会社クボタ | 鋼管杭・鋼管矢板の支持力推定システム |
CN112903483B (zh) * | 2021-03-11 | 2023-01-17 | 天津大学 | 一种模拟爆炸荷载下梁板结构倒塌破坏的试验装置及方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4068030B2 (ja) * | 2003-08-21 | 2008-03-26 | 株式会社地盤試験所 | 杭の急速載荷試験装置 |
JP4098191B2 (ja) * | 2003-08-25 | 2008-06-11 | システム計測株式会社 | 杭の急速載荷試験装置 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109415882A (zh) * | 2016-06-27 | 2019-03-01 | Osmos集团公司 | 检测方法 |
WO2020103838A1 (zh) * | 2018-11-20 | 2020-05-28 | 山东大学 | 高速液压夯夯实地基承载力实时确定方法及系统 |
US11384504B2 (en) | 2018-11-20 | 2022-07-12 | Shandong University | Method and system for determining in real time bearing capacity of foundation tamped by high-speed hydraulic tamper |
CN111622276A (zh) * | 2020-05-26 | 2020-09-04 | 武汉弘泰建筑工程质量检测有限公司 | 单体桩基竖向抗压拔性能检测方法 |
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