JP2004339917A - 杭の回転埋設方法 - Google Patents
杭の回転埋設方法 Download PDFInfo
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- JP2004339917A JP2004339917A JP2003299786A JP2003299786A JP2004339917A JP 2004339917 A JP2004339917 A JP 2004339917A JP 2003299786 A JP2003299786 A JP 2003299786A JP 2003299786 A JP2003299786 A JP 2003299786A JP 2004339917 A JP2004339917 A JP 2004339917A
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- Prior art keywords
- pile
- excavation
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- hole
- diameter
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- 238000000034 method Methods 0.000 title abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000009412 basement excavation Methods 0.000 claims description 102
- 238000005553 drilling Methods 0.000 claims description 42
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 23
- 230000002093 peripheral effect Effects 0.000 description 13
- 239000002002 slurry Substances 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000008267 milk Substances 0.000 description 9
- 210000004080 milk Anatomy 0.000 description 9
- 235000013336 milk Nutrition 0.000 description 9
- 239000000843 powder Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009933 burial Methods 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
【解決手段】 杭5本体の外周径以上且つ螺旋状羽根5aの外周径よりも小さい径で地盤3を掘削した後、その小径掘削孔4aの先端部に拡大掘削孔4bを形成し、且つ拡大掘削孔4b内に硬化体材料を充填し、次いで螺旋状羽根5aの外周径よりも大きい径で拡大掘削孔4bから地盤3表面に至る所定の位置を引き上げ掘削し、その掘削孔4内に杭5を回転埋設して螺旋状羽根5aを拡大掘削孔4b内に定着するように構成したことを特徴とする。
【選択図】 図1
Description
1a…螺旋状羽根
2…拡大掘削ビット
3…地盤
3a…硬い地層
4…掘削孔
4a…小径掘削孔
4b…拡大掘削孔
4c…大径掘削孔
5…杭
5a,5b,5d,5e…螺旋状羽根
5c…拡径部
6…拡大掘削刃
8…掘削刃
9…攪拌翼
10…共廻り防止装置
11…発生土
12…突条リング
13…突起
Claims (1)
- 先端外周部に螺旋状羽根を有する杭を埋設するにあたり、
前記杭本体径の70%以上且つ前記螺旋状羽根の外周径よりも小さい径で地盤を掘削した後、その掘削孔の先端部に拡大掘削孔を形成し、且つ該拡大掘削孔内に硬化体材料を充填し、次いで前記螺旋状羽根の外周径よりも大きい径で前記拡大掘削孔から地表面または地表面付近に至る所定の位置を引き上げ掘削し、その掘削孔内に前記杭を回転埋設して前記螺旋状羽根を前記拡大掘削孔内に定着することを特徴とする杭の回転埋設方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003299786A JP4179949B2 (ja) | 2003-04-21 | 2003-08-25 | 杭の回転埋設方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003115477 | 2003-04-21 | ||
JP2003299786A JP4179949B2 (ja) | 2003-04-21 | 2003-08-25 | 杭の回転埋設方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004339917A true JP2004339917A (ja) | 2004-12-02 |
JP4179949B2 JP4179949B2 (ja) | 2008-11-12 |
Family
ID=33543056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003299786A Expired - Lifetime JP4179949B2 (ja) | 2003-04-21 | 2003-08-25 | 杭の回転埋設方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4179949B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014156755A (ja) * | 2013-02-18 | 2014-08-28 | Maruko Juryo:Kk | 掘削ロッド |
JP2014214527A (ja) * | 2013-04-26 | 2014-11-17 | 佳寿 野村 | 流体管の導入装置及びそれを用いた埋設方法 |
JP2016535187A (ja) * | 2013-10-27 | 2016-11-10 | ペン・グイジャオ | 複合型押し拡げ杭の杭形成工法及び複合型押し拡げ杭の杭形成設備 |
-
2003
- 2003-08-25 JP JP2003299786A patent/JP4179949B2/ja not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014156755A (ja) * | 2013-02-18 | 2014-08-28 | Maruko Juryo:Kk | 掘削ロッド |
JP2014214527A (ja) * | 2013-04-26 | 2014-11-17 | 佳寿 野村 | 流体管の導入装置及びそれを用いた埋設方法 |
JP2016535187A (ja) * | 2013-10-27 | 2016-11-10 | ペン・グイジャオ | 複合型押し拡げ杭の杭形成工法及び複合型押し拡げ杭の杭形成設備 |
Also Published As
Publication number | Publication date |
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JP4179949B2 (ja) | 2008-11-12 |
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