JP4145291B2 - 地盤注入工法 - Google Patents
地盤注入工法 Download PDFInfo
- Publication number
- JP4145291B2 JP4145291B2 JP2004375938A JP2004375938A JP4145291B2 JP 4145291 B2 JP4145291 B2 JP 4145291B2 JP 2004375938 A JP2004375938 A JP 2004375938A JP 2004375938 A JP2004375938 A JP 2004375938A JP 4145291 B2 JP4145291 B2 JP 4145291B2
- Authority
- JP
- Japan
- Prior art keywords
- expansion
- contraction
- packer
- injection
- ground
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
Description
隣接する膨縮パッカ間に二個以上の外管内空間を形成し、内管吐出口から注入液を外管内空間および外管吐出口を経て地盤に同時注入する。さらに、膨縮パッカから流体を排出して収縮し、この状態で内管を他の注入ステージに移動の後、膨縮パッカを膨張させ、同様にして繰り返し注入液を同時注入する。したがって、パッカを長尺にしても内管はパッカの流体を抜いて縮少することによって、上下に移動自在である。しかも、外管吐出口の一部を膨縮パッカで閉じながら他の吐出口から注入でき、瞬結性グラウトや浸透性グラウトを重ね合わせた複合注入が可能になる。
2 外管吐出口
3 外管
5 内管
6 膨縮パッカ
7 内管吐出口
8 パッカ流路
9 外管内空間
10 固結領域
11 空間内膨縮パッカ
12 区切られた空間
Claims (4)
- 地盤中に、軸方向の異なる位置に複数の外管吐出口を有する外管を配置し、この外管内に、長手方向の異なる位置に三個以上の膨縮パッカを備え、互いに隣接する膨縮パッカ間にそれぞれの内管吐出口が別々に位置する複数本の内管を遊挿し、さらに、外管内には前記三個以上の膨縮パッカと連絡されたパッカ流路を備え、前記三個以上の膨縮パッカに流体を送って該膨縮パッカを膨張させて互いに隣接する膨縮パッカ間に二個以上の外管内空間を形成し、前記複数本の内管にそれぞれの注入液を送液し、二つ以上の外管吐出口から同時に地盤に注入し、次いで、膨縮パッカから流体を排出して膨縮パッカを収縮し、複数本の内管を移動して内管吐出口をそれぞれ他の外管吐出口に合致させて注入ステージを移動の後、膨縮パッカを膨張させて外管内空間を形成し、同様にして繰り返し注入液を二つ以上の外管吐出口から地盤中に注入することを特徴とする地盤注入工法。
- 請求項1において、内管吐出口が噴射口である請求項1に記載の地盤注入工法。
- 請求項1において、流体は気体または水である請求項1に記載の地盤注入工法。
- 請求項1において、浸透性の異なるグラウトを併用する場合、注入液として、まず、浸透性の悪い方のグラウトを注入し、次いでステージを移動して浸透性の良い方のグラウトを注入する請求項1に記載の地盤注入工法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004375938A JP4145291B2 (ja) | 2004-12-27 | 2004-12-27 | 地盤注入工法 |
CNB2005100738280A CN100557143C (zh) | 2004-12-27 | 2005-05-24 | 地基注入施工法 |
TW094117573A TW200622062A (en) | 2004-12-27 | 2005-05-27 | Grouting construction method |
KR1020050079737A KR100792089B1 (ko) | 2004-12-27 | 2005-08-30 | 지반 주입 공법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004375938A JP4145291B2 (ja) | 2004-12-27 | 2004-12-27 | 地盤注入工法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006183268A JP2006183268A (ja) | 2006-07-13 |
JP4145291B2 true JP4145291B2 (ja) | 2008-09-03 |
Family
ID=36736580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004375938A Active JP4145291B2 (ja) | 2004-12-27 | 2004-12-27 | 地盤注入工法 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4145291B2 (ja) |
KR (1) | KR100792089B1 (ja) |
CN (1) | CN100557143C (ja) |
TW (1) | TW200622062A (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100687632B1 (ko) * | 2006-07-21 | 2007-02-27 | 주식회사 도화종합기술공사 | 이중 케이싱을 통한 피압대수층 현장시험방법 |
JP2009019418A (ja) * | 2007-07-12 | 2009-01-29 | Toa Harbor Works Co Ltd | 地盤改良薬液の注入方法および装置 |
KR100975398B1 (ko) * | 2008-03-04 | 2010-08-11 | (주)동운엔지니어링 | 강관 내 나선회전 그라우팅을 위한 케이싱 헤드 |
JP5210849B2 (ja) * | 2008-12-18 | 2013-06-12 | 東亜建設工業株式会社 | 地盤改良薬液の注入方法および装置 |
KR101051721B1 (ko) | 2009-06-30 | 2011-07-25 | (주)대우건설 | 노즐 및 돌기를 이용하는 그라우팅용 선단장치 |
KR101217841B1 (ko) * | 2010-04-01 | 2013-01-03 | 변권식 | 캡슐 타입 지하수공 및 지열공 차폐 그라우팅 장치 |
CN101812838B (zh) * | 2010-04-27 | 2011-08-10 | 天津大学 | 一种基于固化剂和筒型基础负压技术的地基加固方法 |
CN102162240B (zh) * | 2010-07-30 | 2015-02-25 | 江苏道达海上风电工程科技有限公司 | 用于实现筒型基础内固化剂自释放的系统及其方法 |
JP6124694B2 (ja) * | 2013-06-11 | 2017-05-10 | 西松建設株式会社 | 地盤補強装置および地盤の補強方法 |
JP5971606B1 (ja) * | 2015-12-18 | 2016-08-17 | 強化土株式会社 | 土壌浄化工法 |
JP2017214731A (ja) * | 2016-05-31 | 2017-12-07 | 日特建設株式会社 | 注入外管及び薬液注入工法 |
CN110777774A (zh) * | 2019-11-04 | 2020-02-11 | 南通五建控股集团有限公司 | 软弱地基及边坡加固设计用双组份注浆方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3199520B2 (ja) * | 1993-05-31 | 2001-08-20 | 株式会社エヌケー製作所 | アール曲げ機 |
JP3102786B2 (ja) * | 1998-07-10 | 2000-10-23 | ライト工業株式会社 | 薬液注入工法およびこれに用いる注入装置 |
JP3275039B2 (ja) * | 1999-03-09 | 2002-04-15 | 強化土エンジニヤリング株式会社 | 地盤注入装置及び工法 |
JP3500464B2 (ja) * | 1999-10-27 | 2004-02-23 | 強化土エンジニヤリング株式会社 | 地盤注入工法 |
KR100420502B1 (ko) * | 1999-12-28 | 2004-03-02 | 쿄카도 엔지니어링 주식회사 | 주입관장치 및 지반주입공법 |
KR100429407B1 (ko) * | 2001-05-17 | 2004-04-28 | 조희남 | 지하수 심정 그라우팅장치 및 방법 |
-
2004
- 2004-12-27 JP JP2004375938A patent/JP4145291B2/ja active Active
-
2005
- 2005-05-24 CN CNB2005100738280A patent/CN100557143C/zh not_active Expired - Fee Related
- 2005-05-27 TW TW094117573A patent/TW200622062A/zh unknown
- 2005-08-30 KR KR1020050079737A patent/KR100792089B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR20060074816A (ko) | 2006-07-03 |
CN1796665A (zh) | 2006-07-05 |
TWI310062B (ja) | 2009-05-21 |
KR100792089B1 (ko) | 2008-01-04 |
TW200622062A (en) | 2006-07-01 |
CN100557143C (zh) | 2009-11-04 |
JP2006183268A (ja) | 2006-07-13 |
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