JP4863342B2 - 掘削へッド及び杭圧入機 - Google Patents
掘削へッド及び杭圧入機 Download PDFInfo
- Publication number
- JP4863342B2 JP4863342B2 JP2004203114A JP2004203114A JP4863342B2 JP 4863342 B2 JP4863342 B2 JP 4863342B2 JP 2004203114 A JP2004203114 A JP 2004203114A JP 2004203114 A JP2004203114 A JP 2004203114A JP 4863342 B2 JP4863342 B2 JP 4863342B2
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- ground
- pile
- press
- claw
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims description 16
- 238000009412 basement excavation Methods 0.000 claims description 89
- 210000000078 claw Anatomy 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000007796 conventional method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Description
軸部21の上端には、上から見て反時計回りに上がるように形成されたオーガスクリュー3に接続される接続部22が設けられている。軸部21の下端には、先端掘削爪23が設けられている。軸部の外周部には、スクリュー24が設けられている。
ここで、すくい角とは、掘削爪25の刃先26の進行方向に垂直な直線(図4では刃先26と回転中心とを結ぶ径方向の直線L)と、刃先26の進行方向前方の面26bとのなす角θである。刃先26の進行方向前方の面26bが、進行方向に垂直な直線よりも後方にあるときに、すくい角が正であるという。
本実施の形態の掘削ヘッド20でも、第1の実施の形態と同様に、掘削爪25の下方及び回転方向前方の地盤1を破断しながら効率よく地盤を掘削することができる。
2 杭
4 削孔
4a 水平面
4b 鉛直面
4c、4d 亀裂
10 杭圧入機
11 クランプ
14 チャック部
20 掘削ヘッド
23 先端掘削爪
25 掘削爪
26 刃先
Claims (2)
- 回転しながら地盤を掘削する掘削装置の掘削ヘッドであって、地盤を破砕する複数の掘削爪を備え、これら掘削爪は、刃先の下面が略水平であって、下部中央から上部外方へ略円錐螺旋状に配列されており、
最上部の掘削爪から下部中央の掘削爪までの高低差が、最上部の掘削爪の回転半径以上であって、
円錐螺旋形状の面材からなり、複数の掘削爪を下方に向かって突出して配列させたスクリューを備え、
スクリューのピッチを上部に行くほど大きくなるようにしたことを特徴とする掘削ヘッド。 - 請求項1に記載の掘削ヘッドを有する掘削装置を備えた杭圧入機であって、
既設の杭を掴持する掴持手段と、該掴持手段により既設の杭を掴持することにより反力を取って杭を圧入する圧入手段とを備え、
前記圧入手段は、前記掘削ヘッドを備えた掘削装置で地盤を掘削することに補助させて杭を圧入することを特徴とする杭圧入機。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004203114A JP4863342B2 (ja) | 2004-07-09 | 2004-07-09 | 掘削へッド及び杭圧入機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004203114A JP4863342B2 (ja) | 2004-07-09 | 2004-07-09 | 掘削へッド及び杭圧入機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006022594A JP2006022594A (ja) | 2006-01-26 |
JP4863342B2 true JP4863342B2 (ja) | 2012-01-25 |
Family
ID=35796066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004203114A Expired - Lifetime JP4863342B2 (ja) | 2004-07-09 | 2004-07-09 | 掘削へッド及び杭圧入機 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4863342B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5864517B2 (ja) * | 2013-11-20 | 2016-02-17 | 株式会社ポラス暮し科学研究所 | コラム築造装置 |
CN103821551B (zh) * | 2014-02-21 | 2016-05-11 | 河南省煤田地质局二队 | 一种煤层气井空气动力储层改造减压防爆除尘装置 |
JP2017133270A (ja) * | 2016-01-29 | 2017-08-03 | 株式会社テノックス | 水硬性固化材液置換コラム築造用掘削ロッドの掘削ヘッド |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3226855A (en) * | 1963-03-27 | 1966-01-04 | Opton F Smith | Earth digging and trenching screw |
US3382937A (en) * | 1966-05-02 | 1968-05-14 | James P. Watts | Drilling auger |
JPS5441162B2 (ja) * | 1973-04-24 | 1979-12-07 | ||
JPH0340957Y2 (ja) * | 1987-03-09 | 1991-08-28 | ||
JPH0249888A (ja) * | 1988-08-10 | 1990-02-20 | Kazuo Murazaki | 回転式掘削ビット |
JPH034848U (ja) * | 1989-06-01 | 1991-01-18 | ||
JP2004011102A (ja) * | 2002-06-03 | 2004-01-15 | Giken Seisakusho Co Ltd | 掘削ヘッド、掘削方法及び杭圧入方法 |
-
2004
- 2004-07-09 JP JP2004203114A patent/JP4863342B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2006022594A (ja) | 2006-01-26 |
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