JP4418305B2 - 3軸深層混合処理工法 - Google Patents
3軸深層混合処理工法 Download PDFInfo
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- JP4418305B2 JP4418305B2 JP2004169776A JP2004169776A JP4418305B2 JP 4418305 B2 JP4418305 B2 JP 4418305B2 JP 2004169776 A JP2004169776 A JP 2004169776A JP 2004169776 A JP2004169776 A JP 2004169776A JP 4418305 B2 JP4418305 B2 JP 4418305B2
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- 238000000034 method Methods 0.000 title claims description 19
- 238000003756 stirring Methods 0.000 claims description 68
- 239000000463 material Substances 0.000 claims description 31
- 239000002689 soil Substances 0.000 claims description 29
- 238000013019 agitation Methods 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 10
- 230000035515 penetration Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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2 駆動源
4 攪拌翼
5 攪拌領域
9,10 吐出口
Claims (2)
- 先端部に攪拌翼を備えた3軸の回転軸を並設し、それら回転軸を正回転させて地盤に貫入するとともに逆回転させて地盤から引き抜く間に、回転軸の先端部から固化材を地盤中に供給して各攪拌翼により形成される3連の攪拌領域において攪拌混合することにより地盤改良を行う3軸深層混合処理工法であって、
3軸の回転軸のうち両側の回転軸を同一方向に回転させるとともに中央の回転軸を両側の回転軸とは逆方向に回転させることにより、前記攪拌領域全体にわたって改良土が連続して流れる一連の攪拌流を形成し、
かつ、各回転軸からの固化材の供給量に差をもたせることにより、前記攪拌領域内において改良土圧に差を生じさせて攪拌領域内における改良土の水平方向の流れを促進せしめるとともに、各回転軸からの固化材の供給量を時間とともに増減することを特徴とする3軸深層混合処理工法。 - 先端部に攪拌翼を備えた3軸の回転軸を並設し、それら回転軸を正回転させて地盤に貫入するとともに逆回転させて地盤から引き抜く間に、回転軸の先端部から固化材を地盤中に供給して各攪拌翼により形成される3連の攪拌領域において攪拌混合することにより地盤改良を行う3軸深層混合処理工法であって、
3軸の回転軸のうち両側の回転軸を同一方向に回転させるとともに中央の回転軸を両側の回転軸とは逆方向に回転させることにより、前記攪拌領域全体にわたって改良土が連続して流れる一連の攪拌流を形成し、
かつ、各回転軸からの固化材の供給量に差をもたせることにより、前記攪拌領域内において改良土圧に差を生じさせて攪拌領域内における改良土の水平方向の流れを促進せしめるとともに、各回転軸からの固化材の供給量を各回転軸の負荷に応じて設定し、高負荷の回転軸からの供給量を低負荷の回転軸からの供給量よりも大きく設定することを特徴とする3軸深層混合処理工法。
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JP4418305B2 true JP4418305B2 (ja) | 2010-02-17 |
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JP5162105B2 (ja) * | 2006-05-19 | 2013-03-13 | 株式会社竹中土木 | 水底の汚染土壌の原位置混合処理工法および原位置混合処理装置 |
JP6393176B2 (ja) * | 2014-12-05 | 2018-09-19 | 株式会社セリタ建設 | スラリー噴射装置 |
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JPH06193045A (ja) * | 1992-12-28 | 1994-07-12 | Kazuharu Fujito | 多軸式強制攪拌装置による地盤の改良工法 |
JP4042010B2 (ja) * | 1998-08-28 | 2008-02-06 | 昌平 千田 | 地盤改良体造成工法および連続壁造成工法 |
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