JPS5751323A - Method and apparatus for improving soft ground - Google Patents
Method and apparatus for improving soft groundInfo
- Publication number
- JPS5751323A JPS5751323A JP12412180A JP12412180A JPS5751323A JP S5751323 A JPS5751323 A JP S5751323A JP 12412180 A JP12412180 A JP 12412180A JP 12412180 A JP12412180 A JP 12412180A JP S5751323 A JPS5751323 A JP S5751323A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- tip
- hardening agent
- injection rod
- doughnut
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 239000002689 soil Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
PURPOSE: To obtain a doughnut-shaped large-diameter hardened layer by a method in which a cross arm nozzle is projectionally provided to the side of the tip of an injection rod, and the rod is turned and lifted while jetting a hardening agent under high pressure from the tip.
CONSTITUTION: A cross arm nozzle 5 is projectionally provided to the side of the tip of an injection rod 2 capable of turning and moving vertically along a strut 4, and the injection rod 4 is penetrated down to a given depth while excavating the ground. Then, the rod 2 is turned and lifted while injecting the hardening agent under high pressure from a hose 9 in such a way as to construct a doughnut-shaped hardened layer while excavating and stirring soil in and around the turning locus by means of the jet stream of the hardening agent.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12412180A JPS5751323A (en) | 1980-09-09 | 1980-09-09 | Method and apparatus for improving soft ground |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12412180A JPS5751323A (en) | 1980-09-09 | 1980-09-09 | Method and apparatus for improving soft ground |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5751323A true JPS5751323A (en) | 1982-03-26 |
Family
ID=14877436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12412180A Pending JPS5751323A (en) | 1980-09-09 | 1980-09-09 | Method and apparatus for improving soft ground |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5751323A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150817A (en) * | 1983-02-14 | 1984-08-29 | Fudo Constr Co Ltd | Ground treatment work by ground improving agent |
EP0335709A2 (en) * | 1988-03-31 | 1989-10-04 | Kabushiki Kaisha Little Rock | Shaft construction method |
JPH04293815A (en) * | 1991-03-20 | 1992-10-19 | Eikou Sangyo Kk | Jet stirring construction method and jet stirring device |
US5217327A (en) * | 1988-11-18 | 1993-06-08 | N.I.T. Co., Ltd. | Ground reforming method with a hardening material mixed and injected at a super high pressure and reforming device of same |
US5382116A (en) * | 1988-11-18 | 1995-01-17 | N.I.T. Co., Ltd. | Ground reforming method with a hardening material mixed and injected at a super high pressure and reforming device of same |
JP2007132073A (en) * | 2005-11-10 | 2007-05-31 | Onoda Chemico Co Ltd | High pressure injection agitating device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234509A (en) * | 1975-09-11 | 1977-03-16 | Takenaka Komuten Co | Subsoil improving method |
-
1980
- 1980-09-09 JP JP12412180A patent/JPS5751323A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234509A (en) * | 1975-09-11 | 1977-03-16 | Takenaka Komuten Co | Subsoil improving method |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150817A (en) * | 1983-02-14 | 1984-08-29 | Fudo Constr Co Ltd | Ground treatment work by ground improving agent |
JPH0360969B2 (en) * | 1983-02-14 | 1991-09-18 | Fudo Construction Co | |
EP0335709A2 (en) * | 1988-03-31 | 1989-10-04 | Kabushiki Kaisha Little Rock | Shaft construction method |
US5217327A (en) * | 1988-11-18 | 1993-06-08 | N.I.T. Co., Ltd. | Ground reforming method with a hardening material mixed and injected at a super high pressure and reforming device of same |
US5382116A (en) * | 1988-11-18 | 1995-01-17 | N.I.T. Co., Ltd. | Ground reforming method with a hardening material mixed and injected at a super high pressure and reforming device of same |
JPH04293815A (en) * | 1991-03-20 | 1992-10-19 | Eikou Sangyo Kk | Jet stirring construction method and jet stirring device |
JP2007132073A (en) * | 2005-11-10 | 2007-05-31 | Onoda Chemico Co Ltd | High pressure injection agitating device |
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