JP4121489B2 - 回転貫入鋼管杭 - Google Patents
回転貫入鋼管杭 Download PDFInfo
- Publication number
- JP4121489B2 JP4121489B2 JP2004273430A JP2004273430A JP4121489B2 JP 4121489 B2 JP4121489 B2 JP 4121489B2 JP 2004273430 A JP2004273430 A JP 2004273430A JP 2004273430 A JP2004273430 A JP 2004273430A JP 4121489 B2 JP4121489 B2 JP 4121489B2
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- JP
- Japan
- Prior art keywords
- steel pipe
- fan
- shaped flat
- sand
- earth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Description
2 鋼管
3 取付部
4 段部
5 蓋部材
6 内端縁
8 側面開口部
10 羽根
11a、11b 扇形状平板
12 土砂入口
13 空気及び水抜孔
14 リング部材
15 杭先端開口部
15a、15b 凹部
Claims (4)
- 先端部をほぼ螺旋状に切欠いて取付部が形成された鋼管と、半径が前記鋼管の半径の1.2〜3倍程度で、内角の総和がほぼ360°になるように形成された2個又は3個の扇形状平板とを有し、これら扇形状平板を隣接する縁部同士を前記取付部で当接させてほぼ螺旋状の羽根を形成するように前記鋼管の取付部に結合した羽根付き回転貫入鋼管杭において、前記扇形状平板の近傍上の鋼管に該鋼管内に進入した土砂を鋼管外に導く側面開口部を形成したことを特徴とする回転貫入鋼管杭。
- 先端部をほぼ螺旋状に切欠いて取付部が形成された鋼管と、半径が前記鋼管の半径の1.2〜3倍程度で、内角の総和が360°以下になるように形成された2個又は3個の扇形状平板とを有し、これら扇形状平板をほぼ螺旋状の羽根を形成するように前記鋼管の取付部に結合した羽根付き回転貫入鋼管杭において、前記扇形状平板の近傍上の鋼管に該鋼管内に進入した土砂を鋼管外に導く側面開口部を形成したことを特徴とする回転貫入鋼管杭。
- 前記側面開口部より上の鋼管内部に、該鋼管の内部への土砂の進入を抑制する蓋部材を固着したことを特徴とする請求項1又は2記載の回転貫入鋼管杭。
- 前記側面開口部より上の鋼管内部に、該鋼管の内部への土砂の進入を抑制するリング状部材を固着したことを特徴とする請求項1又は2記載の回転貫入鋼管杭。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004273430A JP4121489B2 (ja) | 2004-09-21 | 2004-09-21 | 回転貫入鋼管杭 |
Applications Claiming Priority (1)
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JP2004273430A JP4121489B2 (ja) | 2004-09-21 | 2004-09-21 | 回転貫入鋼管杭 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006089932A JP2006089932A (ja) | 2006-04-06 |
JP4121489B2 true JP4121489B2 (ja) | 2008-07-23 |
Family
ID=36231172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004273430A Expired - Fee Related JP4121489B2 (ja) | 2004-09-21 | 2004-09-21 | 回転貫入鋼管杭 |
Country Status (1)
Country | Link |
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JP (1) | JP4121489B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5200941B2 (ja) * | 2008-02-08 | 2013-06-05 | Jfeスチール株式会社 | ねじ込み式杭 |
JP5298859B2 (ja) * | 2008-02-08 | 2013-09-25 | Jfeスチール株式会社 | ねじ込み式杭 |
KR101276505B1 (ko) * | 2012-01-13 | 2013-06-18 | 김재형 | 회전식 기초파일 |
JP6815058B1 (ja) * | 2020-10-26 | 2021-01-20 | 株式会社Tjプラン | 鋼管杭 |
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2004
- 2004-09-21 JP JP2004273430A patent/JP4121489B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2006089932A (ja) | 2006-04-06 |
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