JPS61109820A - Soft ground improver - Google Patents

Soft ground improver

Info

Publication number
JPS61109820A
JPS61109820A JP23136584A JP23136584A JPS61109820A JP S61109820 A JPS61109820 A JP S61109820A JP 23136584 A JP23136584 A JP 23136584A JP 23136584 A JP23136584 A JP 23136584A JP S61109820 A JPS61109820 A JP S61109820A
Authority
JP
Japan
Prior art keywords
ground
improved
shafts
cement slurry
soft 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.)
Pending
Application number
JP23136584A
Other languages
Japanese (ja)
Inventor
Yuzo Kitamura
Masayuki Tachibana
Original Assignee
Mitsubishi Heavy Ind Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Priority to JP23136584A priority Critical patent/JPS61109820A/en
Publication of JPS61109820A publication Critical patent/JPS61109820A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades

Abstract

PURPOSE:To reduce the cost of construction by a method in which a grount improving agent is injected with stirring into soft ground to form an improving pile with a hollow where ground is not improved. CONSTITUTION:A mast 6 is provided to a driver 1, and stirring shafts 2 are provided in such a way as to hold the mast 6 between them. Cement slurry is discharged from the outlets 4 and 5 of an excavating stirring blade 3 provided to the tip of the shafts 2 and mixed with soft ground B while turning the shafts 2 to form an upper improved ground 9. Cement slurry is then discharged from the outlet 4 alone to improve the surrounding ground of the improving pile while penetrating a treatment machine A into the ground to form a peripheral improved ground 10. When a given depth is reached, the slurry is also dis charged from the outlet 5 while penetrating the machine A to make up a lower improved ground 11. Since unimproved hollow portion 12 is formed, the amount of cement slurry to be used can be reduced and the cost of construction can be cut down.
JP23136584A 1984-11-05 1984-11-05 Soft ground improver Pending JPS61109820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23136584A JPS61109820A (en) 1984-11-05 1984-11-05 Soft ground improver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23136584A JPS61109820A (en) 1984-11-05 1984-11-05 Soft ground improver

Publications (1)

Publication Number Publication Date
JPS61109820A true JPS61109820A (en) 1986-05-28

Family

ID=16922476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23136584A Pending JPS61109820A (en) 1984-11-05 1984-11-05 Soft ground improver

Country Status (1)

Country Link
JP (1) JPS61109820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0559717A (en) * 1991-09-04 1993-03-09 Kajima Corp Structure for improved ground section

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0559717A (en) * 1991-09-04 1993-03-09 Kajima Corp Structure for improved ground section

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