JP4378751B2 - 掘削孔の曲り修正装置 - Google Patents
掘削孔の曲り修正装置 Download PDFInfo
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- JP4378751B2 JP4378751B2 JP2004043623A JP2004043623A JP4378751B2 JP 4378751 B2 JP4378751 B2 JP 4378751B2 JP 2004043623 A JP2004043623 A JP 2004043623A JP 2004043623 A JP2004043623 A JP 2004043623A JP 4378751 B2 JP4378751 B2 JP 4378751B2
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Description
7 トップシーブ
9 油圧スイベル装置
10 スクリューロッド
11 掘削ヘッド
12 油圧シリンダ
13 反力板
a 特定回転区間
b 傾斜方向最外縁
c 修正方向
Claims (2)
- アースオーガ等の回転掘削機において、先端の掘削ヘッド一端に拡大時には掘削ヘッドの外径より一部分が大径に突出し、縮小時には掘削ヘッドの外径内に収まる拡縮自在の反力板を設け、該反力板を掘削ヘッドの回転に同期して1周に1回特定区間で突出させる機構を有することを特徴とする掘削孔曲り修正装置。
- アースオーガ等の回転掘削機において、先端の掘削ヘッドに拡縮自在の反力板を設け、該反力板を掘削ヘッドの回転に同期して1周に1回、掘削孔傾斜方向外縁特定区間で掘削ヘッド外径より大径に突出させることを特徴とする掘削孔曲り修正方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004043623A JP4378751B2 (ja) | 2004-01-21 | 2004-01-21 | 掘削孔の曲り修正装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004043623A JP4378751B2 (ja) | 2004-01-21 | 2004-01-21 | 掘削孔の曲り修正装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005207202A JP2005207202A (ja) | 2005-08-04 |
JP4378751B2 true JP4378751B2 (ja) | 2009-12-09 |
Family
ID=34908415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004043623A Expired - Fee Related JP4378751B2 (ja) | 2004-01-21 | 2004-01-21 | 掘削孔の曲り修正装置 |
Country Status (1)
Country | Link |
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JP (1) | JP4378751B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5516531B2 (ja) * | 2011-08-01 | 2014-06-11 | マクロエンジニアリング株式会社 | 地盤改良用掘削装置 |
FR3068380B1 (fr) * | 2017-06-30 | 2020-12-11 | Soletanche Freyssinet | Systeme de forage vertical de type tariere muni d'un dispositif de correction de trajectoire |
JP7370212B2 (ja) * | 2019-10-16 | 2023-10-27 | 株式会社安藤・間 | 回転削孔施工における孔曲り修正方法及び装置 |
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2004
- 2004-01-21 JP JP2004043623A patent/JP4378751B2/ja not_active Expired - Fee Related
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JP2005207202A (ja) | 2005-08-04 |
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