JP5478386B2 - 地下空洞部を有する地盤の改良工法 - Google Patents
地下空洞部を有する地盤の改良工法 Download PDFInfo
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- JP5478386B2 JP5478386B2 JP2010151901A JP2010151901A JP5478386B2 JP 5478386 B2 JP5478386 B2 JP 5478386B2 JP 2010151901 A JP2010151901 A JP 2010151901A JP 2010151901 A JP2010151901 A JP 2010151901A JP 5478386 B2 JP5478386 B2 JP 5478386B2
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- Prior art keywords
- ground
- underground cavity
- fluidized
- sand
- sand pile
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Images
Description
2 下方地盤(軟弱地盤)
3 砂杭
4 中空管挿入用孔の跡
11 流動化物注入口
12 流動化物観察口
13 流動化物
13a 塑性化物
Claims (3)
- 地下空洞部の下方地盤に砂杭を造成し、該下方地盤を改良するI工程と、
該地下空洞部に、砂類を主材料とする充填後においても固化しない流動化物を充填するII工程を有することを特徴とする地下空洞部を有する地盤の改良工法。 - I工程は、砂杭材料流動化物を、流動状態を保持したまま下方地盤中に圧入し、地盤中で塑性化させて砂杭を造成することを特徴とする請求項1記載の地下空洞部を有する地盤の改良工法。
- 該II工程後、該地下空洞部に充填された流動化物を自然放置して塑性化することを特徴とする請求項1又は2に記載の地下空洞部を有する地盤の改良工法。
Priority Applications (1)
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JP2010151901A JP5478386B2 (ja) | 2010-07-02 | 2010-07-02 | 地下空洞部を有する地盤の改良工法 |
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JP2010151901A JP5478386B2 (ja) | 2010-07-02 | 2010-07-02 | 地下空洞部を有する地盤の改良工法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012012878A JP2012012878A (ja) | 2012-01-19 |
JP5478386B2 true JP5478386B2 (ja) | 2014-04-23 |
Family
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JP2010151901A Active JP5478386B2 (ja) | 2010-07-02 | 2010-07-02 | 地下空洞部を有する地盤の改良工法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019031791A (ja) * | 2017-08-07 | 2019-02-28 | 株式会社不動テトラ | 流動化砂及びその製造方法並びにそれを用いた地盤改良工法 |
US11884860B2 (en) | 2019-12-20 | 2024-01-30 | Fudo Construction Inc. | Fluidized sand and method of density control |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5979635B2 (ja) * | 2012-07-09 | 2016-08-24 | 九州電力株式会社 | 地下空洞部充填材及び充填材製造方法 |
CN102797478B (zh) * | 2012-08-27 | 2015-03-11 | 中国矿业大学 | 分布式抗剪阻滑钢筋混凝土桩防治软岩巷道底鼓方法 |
CN103669331A (zh) * | 2013-12-25 | 2014-03-26 | 中国铁道科学研究院铁道建筑研究所 | 高速铁路流塑状软土地基加固方法 |
JP7191447B2 (ja) * | 2019-02-20 | 2022-12-19 | 株式会社不動テトラ | 流動化砂の製造方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4334553B2 (ja) * | 2006-06-30 | 2009-09-30 | 株式会社福田組 | 地下空洞閉塞方法 |
JP5188894B2 (ja) * | 2008-07-07 | 2013-04-24 | 株式会社不動テトラ | 砂杭造成工法及び砂杭造成装置 |
-
2010
- 2010-07-02 JP JP2010151901A patent/JP5478386B2/ja active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019031791A (ja) * | 2017-08-07 | 2019-02-28 | 株式会社不動テトラ | 流動化砂及びその製造方法並びにそれを用いた地盤改良工法 |
US11884860B2 (en) | 2019-12-20 | 2024-01-30 | Fudo Construction Inc. | Fluidized sand and method of density control |
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JP2012012878A (ja) | 2012-01-19 |
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