JP3856795B2 - 表層地盤改良工法 - Google Patents
表層地盤改良工法 Download PDFInfo
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- JP3856795B2 JP3856795B2 JP2004041490A JP2004041490A JP3856795B2 JP 3856795 B2 JP3856795 B2 JP 3856795B2 JP 2004041490 A JP2004041490 A JP 2004041490A JP 2004041490 A JP2004041490 A JP 2004041490A JP 3856795 B2 JP3856795 B2 JP 3856795B2
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Description
2c 注入孔
5 タンク
9c ホース
G1 表層地盤
G3 表層地盤
G4 表層地盤
Gf 地表面
H 掘削孔
W 石垣
Y 地盤注入材
Claims (3)
- 地表面から数メートル以内の表層地盤に掘削孔を形成し、
当該掘削孔へ表面に複数の注入孔が穿孔された注入管を建て込んで、地表面近傍の前記掘削孔と前記注入管との隙間を封止した後、
ゲルタイムの長い地盤注入材の貯留用のタンクに前記注入管をホースを介して接続し、
前記タンク内を最大加圧力0.05メガパスカル程度の小型コンプレッサーにより加圧することにより、または前記タンクを地表面から5メートル以下の所定の高さに持ち上げて設置することにより、前記地盤注入材を前記タンク内から前記注入管内へと0.001〜0.05メガパスカル程度の微圧で供給して、当該地盤注入材を前記複数の注入孔を通して表層地盤中に注入することを特徴とする表層地盤改良工法。 - 請求項1に記載の表層地盤改良工法において、
前記地盤注入材として、超微粒子の懸濁型注入材、または低粘性の溶液型注入材を用いることを特徴とする表層地盤改良工法。 - 請求項1または請求項2に記載の表層地盤改良工法において、
前記地盤注入材の貯留用のタンクに、表層地盤に所定の間隔で形成した複数の掘削孔のそれぞれに建て込んだ複数の前記注入管をホースを介して接続し、
前記地盤注入材を前記タンク内から前記各注入管内へと同時に微圧で供給することを特徴とする表層地盤改良工法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004041490A JP3856795B2 (ja) | 2004-02-18 | 2004-02-18 | 表層地盤改良工法 |
Applications Claiming Priority (1)
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JP2004041490A JP3856795B2 (ja) | 2004-02-18 | 2004-02-18 | 表層地盤改良工法 |
Publications (2)
Publication Number | Publication Date |
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JP2005232742A JP2005232742A (ja) | 2005-09-02 |
JP3856795B2 true JP3856795B2 (ja) | 2006-12-13 |
Family
ID=35015983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004041490A Expired - Fee Related JP3856795B2 (ja) | 2004-02-18 | 2004-02-18 | 表層地盤改良工法 |
Country Status (1)
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JP (1) | JP3856795B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4368884B2 (ja) * | 2006-11-07 | 2009-11-18 | 独立行政法人港湾空港技術研究所 | 地盤改良方法 |
JP7461211B2 (ja) * | 2020-05-15 | 2024-04-03 | 鹿島建設株式会社 | 地盤改良工法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2683758B2 (ja) * | 1989-02-21 | 1997-12-03 | 清水建設株式会社 | 地盤の改良方法およびその装置 |
JP3386425B2 (ja) * | 1999-08-20 | 2003-03-17 | 強化土エンジニヤリング株式会社 | 注入管装置および地盤注入工法 |
JP2002242173A (ja) * | 2001-02-13 | 2002-08-28 | Shimizu Corp | 薬液注入工法 |
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2004
- 2004-02-18 JP JP2004041490A patent/JP3856795B2/ja not_active Expired - Fee Related
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JP2005232742A (ja) | 2005-09-02 |
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