JP4869233B2 - 軟弱土の固化処理方法 - Google Patents
軟弱土の固化処理方法 Download PDFInfo
- Publication number
- JP4869233B2 JP4869233B2 JP2007528481A JP2007528481A JP4869233B2 JP 4869233 B2 JP4869233 B2 JP 4869233B2 JP 2007528481 A JP2007528481 A JP 2007528481A JP 2007528481 A JP2007528481 A JP 2007528481A JP 4869233 B2 JP4869233 B2 JP 4869233B2
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- JP
- Japan
- Prior art keywords
- soft soil
- solidifying
- amount
- solidification
- additive
- 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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
- E02F5/223—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling
- E02F5/226—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling with means for processing the soil, e.g. screening belts, separators; Padding machines
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/10—Cements, e.g. Portland cement
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/02—Conveying equipment mounted on a dredger
- E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Description
10 土運船
11 サンドポンプ
12 揚土管
13 添加材注入器
14 一時貯留槽
15 γ線密度計
16 搬送管
17 空気圧送管
18a、18b 圧力計
19 固化材注入器
20 注入制御手段
20a コンピュータ
次に、高含水比の浚渫土からなる軟弱土に対して、クリンカアッシュを添加すると共にセメントからなる固化材と、必要に応じてフライアッシュからなる固化助剤を添加混合させて固化処理した試験例を示す。
図10及び図11には、軟弱土に対して、クリンカアッシュを50%となるように(軟弱土:クリンカアッシュ=1:1)で添加し、その総量に対して、セメントを50kg/m3と、フライアッシュ40〜230kg/m3とを添加した場合の材令7日の一軸圧縮強度及び材令7日と材令28日の一軸圧縮強度の強度比(材令28日強度/材令7日強度)をそれぞれ示す。
Claims (7)
- 軟弱土を固化材で固化処理するに際し、前記軟弱土としては揚土されたものを用い、当該軟弱土を搬送管で搬送する途中で、予め定められたフロー値を維持する割合となる添加量でクリンカアッシュ及び水砕スラグから選択される少なくとも一種の添加材を添加混合した後、固化材を添加混合し、当該固化材を添加混合した混合物を地盤改良を行う軟弱地盤上に投入して軟弱地盤上に表層固化地盤を形成することを特徴とする軟弱土の固化処理方法。
- 請求項1に記載の軟弱土の固化処理方法において、前記添加材の添加量は、前記所望のフロー値を維持する割合を決定した後は、前記軟弱土の含水比に関係なく一定とすることを特徴とする軟弱土の固化処理方法。
- 請求項1又は2に記載の軟弱土の固化処理方法において、前記添加材の添加量は、重量比で10%〜70%となる量であることを特徴とする軟弱土の固化処理方法。
- 請求項1〜3のいずれか1つに記載の軟弱土の固化処理方法において、前記固化材の添加量は、前記軟弱土及び前記添加材の総量1000m3に対して30〜100kgであることを特徴とする軟弱土の固化処理方法。
- 請求項1〜4のいずれか1つに記載の軟弱土の固化処理方法において、前記固化材の添加量は、配合強度が250〜100kN/m2となるように設定することを特徴とする軟弱土の固化処理方法。
- 請求項1〜5のいずれか1つに記載の軟弱土の固化処理方法において、前記固化材が、セメントであることを特徴とする軟弱土の固化処理方法。
- 請求項1〜6のいずれか1つに記載の軟弱土の固化処理方法において、前記固化材の他、固化助材として、フライアッシュを、前記軟弱土及び前記添加材の総量1000m3に対して30〜90kg添加することを特徴とする軟弱土の固化処理方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007528481A JP4869233B2 (ja) | 2005-07-29 | 2006-07-25 | 軟弱土の固化処理方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005221752 | 2005-07-29 | ||
JP2005221752 | 2005-07-29 | ||
PCT/JP2006/314689 WO2007013465A1 (ja) | 2005-07-29 | 2006-07-25 | 軟弱土の固化処理方法 |
JP2007528481A JP4869233B2 (ja) | 2005-07-29 | 2006-07-25 | 軟弱土の固化処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2007013465A1 JPWO2007013465A1 (ja) | 2009-02-05 |
JP4869233B2 true JP4869233B2 (ja) | 2012-02-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007528481A Active JP4869233B2 (ja) | 2005-07-29 | 2006-07-25 | 軟弱土の固化処理方法 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4869233B2 (ja) |
KR (1) | KR100986498B1 (ja) |
WO (1) | WO2007013465A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007059199A2 (en) | 2005-11-14 | 2007-05-24 | C.R. Bard, Inc. | Sling anchor system |
WO2008033950A2 (en) | 2006-09-13 | 2008-03-20 | C. R. Bard, Inc. | Urethral support system |
JP5048373B2 (ja) * | 2007-03-30 | 2012-10-17 | 中国電力株式会社 | 固化処理土及び固化処理方法 |
KR101246858B1 (ko) * | 2010-01-06 | 2013-03-25 | 주식회사 코스코 | 친환경 이동식 준설퇴적토의 고화처리장치 및 방법 |
JP5318013B2 (ja) * | 2010-03-29 | 2013-10-16 | Jfeスチール株式会社 | 浚渫土の改質方法 |
CN106480919A (zh) * | 2016-10-20 | 2017-03-08 | 中国水电建设集团港航建设有限公司 | 一种长排距串联接力船系统 |
KR102067541B1 (ko) * | 2018-04-16 | 2020-01-16 | 한국건설기술연구원 | 압축판을 이용한 슬러지 탈수 및 고형화 장치 |
CN112159164B (zh) * | 2020-10-16 | 2022-07-12 | 肇庆市武大环境技术研究院 | 一种软土固化剂及其制备方法 |
CN113912373B (zh) * | 2021-11-22 | 2022-06-10 | 纳思同(无锡)科技发展有限公司 | 一种高含水率软土快速固化为路基填料的高性能固化剂 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641916A (en) * | 1979-09-13 | 1981-04-18 | Kawasaki Steel Corp | Weak stratum solidifying treatment engineering using pulverized converter slag compound as hardening agent |
JPH0440298A (ja) * | 1990-06-05 | 1992-02-10 | Fujita Corp | ヘドロ固化材 |
JPH05220498A (ja) * | 1992-02-13 | 1993-08-31 | Mamoru Wakimura | ヘドロ処理物及びヘドロの処理方法 |
JPH10225669A (ja) * | 1997-02-13 | 1998-08-25 | Chichibu Onoda Cement Corp | 低アルカリ固化材 |
JP2001311134A (ja) * | 2000-05-01 | 2001-11-09 | Railway Technical Res Inst | 硬化材添加含水流動性土、その硬化材添加量決定方法、とその製造方法及び装置 |
JP2003192409A (ja) * | 2001-12-26 | 2003-07-09 | Aiharagumi:Kk | 粒状建設用資材の製造方法 |
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2006
- 2006-07-25 KR KR1020087003530A patent/KR100986498B1/ko not_active IP Right Cessation
- 2006-07-25 JP JP2007528481A patent/JP4869233B2/ja active Active
- 2006-07-25 WO PCT/JP2006/314689 patent/WO2007013465A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641916A (en) * | 1979-09-13 | 1981-04-18 | Kawasaki Steel Corp | Weak stratum solidifying treatment engineering using pulverized converter slag compound as hardening agent |
JPH0440298A (ja) * | 1990-06-05 | 1992-02-10 | Fujita Corp | ヘドロ固化材 |
JPH05220498A (ja) * | 1992-02-13 | 1993-08-31 | Mamoru Wakimura | ヘドロ処理物及びヘドロの処理方法 |
JPH10225669A (ja) * | 1997-02-13 | 1998-08-25 | Chichibu Onoda Cement Corp | 低アルカリ固化材 |
JP2001311134A (ja) * | 2000-05-01 | 2001-11-09 | Railway Technical Res Inst | 硬化材添加含水流動性土、その硬化材添加量決定方法、とその製造方法及び装置 |
JP2003192409A (ja) * | 2001-12-26 | 2003-07-09 | Aiharagumi:Kk | 粒状建設用資材の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100986498B1 (ko) | 2010-10-08 |
KR20080035626A (ko) | 2008-04-23 |
WO2007013465A1 (ja) | 2007-02-01 |
JPWO2007013465A1 (ja) | 2009-02-05 |
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