JP4728194B2 - 掘削ヘッド - Google Patents
掘削ヘッド Download PDFInfo
- Publication number
- JP4728194B2 JP4728194B2 JP2006244141A JP2006244141A JP4728194B2 JP 4728194 B2 JP4728194 B2 JP 4728194B2 JP 2006244141 A JP2006244141 A JP 2006244141A JP 2006244141 A JP2006244141 A JP 2006244141A JP 4728194 B2 JP4728194 B2 JP 4728194B2
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- spiral
- ground
- head
- discharge port
- 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.)
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- 238000005553 drilling Methods 0.000 title claims description 7
- 238000009412 basement excavation Methods 0.000 claims description 71
- 239000012530 fluid Substances 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000007599 discharging Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Description
104 昇降駆動装置
105 回転駆動装置
110,110B 掘削攪拌手段
120,120B 掘削ヘッド
121 螺旋翼
121a 下端縁
122 掘削爪
130 噴射ボックス
135〜137 吐出口
Claims (1)
- 地盤に貫入される回転軸の先端に設けられ、
回転軸線の外周に周方向に等間隔に配され且つ下端縁に掘削爪の付いた複数条の螺旋翼を有しており、各螺旋翼の下端縁が、外周端から内周端に向かって上り傾斜した傾斜縁として形成されていることにより、複数の螺旋翼の下端縁で構成されるヘッド先端部が、中心部が凹み、周縁部が突出した下向きの凹形状に形成されている掘削ヘッドであって、
少なくとも1つの前記螺旋翼の背面側に、地上から供給される掘削抵抗軽減用の流体を掘削土壌に向けて噴射する噴射ボックスが設けられ、
前記噴射ボックスに、螺旋翼の回転方向の前方へ向けて流体を吐出する吐出口と、後方へ向けて流体を吐出する吐出口と、螺旋翼の回転半径方向外方へ向けて流体を吐出する吐出口と、の3種の吐出口が、そのうちの1つのみを選択的に開放できるように設けられていることを特徴とする掘削ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006244141A JP4728194B2 (ja) | 2006-09-08 | 2006-09-08 | 掘削ヘッド |
US11/614,232 US7651301B2 (en) | 2006-09-08 | 2006-12-21 | Drilling head, method of soil improvement work and apparatus thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006244141A JP4728194B2 (ja) | 2006-09-08 | 2006-09-08 | 掘削ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008063870A JP2008063870A (ja) | 2008-03-21 |
JP4728194B2 true JP4728194B2 (ja) | 2011-07-20 |
Family
ID=39286817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006244141A Active JP4728194B2 (ja) | 2006-09-08 | 2006-09-08 | 掘削ヘッド |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4728194B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101052548B1 (ko) * | 2009-10-08 | 2011-07-29 | 주식회사 성원중기계 | 지반 굴착용 교반로드 |
JP5582851B2 (ja) * | 2010-04-06 | 2014-09-03 | 美喜男 梅岡 | 地盤掘削混合装置 |
JP6460866B2 (ja) * | 2015-03-19 | 2019-01-30 | 株式会社不動テトラ | 地盤攪拌装置 |
JP6307049B2 (ja) * | 2015-08-05 | 2018-04-04 | 株式会社エステック | 地盤硬化層造成工法とその装置 |
JP6490865B1 (ja) * | 2018-10-30 | 2019-03-27 | 株式会社不動テトラ | 地盤改良装置及び地盤改良方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480206U (ja) * | 1977-11-17 | 1979-06-07 | ||
JPH0237937U (ja) * | 1988-08-30 | 1990-03-13 | ||
JPH02140321A (ja) * | 1988-07-25 | 1990-05-30 | Shimizu Corp | 軟弱地盤改良工法及び装置 |
JP2003096773A (ja) * | 2001-07-19 | 2003-04-03 | Mikio Umeoka | 鋼管杭、およびその埋設工法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480206A (en) * | 1977-12-09 | 1979-06-26 | Mitsubishi Heavy Ind Ltd | Gas treating apparatus of blast furnaces |
JPH0813400B2 (ja) * | 1988-07-28 | 1996-02-14 | 株式会社神戸製鋼所 | 細口中空部を有する鋳物の精密鋳造方法 |
-
2006
- 2006-09-08 JP JP2006244141A patent/JP4728194B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5480206U (ja) * | 1977-11-17 | 1979-06-07 | ||
JPH02140321A (ja) * | 1988-07-25 | 1990-05-30 | Shimizu Corp | 軟弱地盤改良工法及び装置 |
JPH0237937U (ja) * | 1988-08-30 | 1990-03-13 | ||
JP2003096773A (ja) * | 2001-07-19 | 2003-04-03 | Mikio Umeoka | 鋼管杭、およびその埋設工法 |
Also Published As
Publication number | Publication date |
---|---|
JP2008063870A (ja) | 2008-03-21 |
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