JPS57193620A - Method and apparatus for improving soft ground - Google Patents

Method and apparatus for improving soft ground

Info

Publication number
JPS57193620A
JPS57193620A JP7736481A JP7736481A JPS57193620A JP S57193620 A JPS57193620 A JP S57193620A JP 7736481 A JP7736481 A JP 7736481A JP 7736481 A JP7736481 A JP 7736481A JP S57193620 A JPS57193620 A JP S57193620A
Authority
JP
Japan
Prior art keywords
casing
soft ground
excavated
pits
turned
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
JP7736481A
Other languages
Japanese (ja)
Inventor
Kyoichi Shibuya
Tomomi Ihara
Tetsuya Shintani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Cement Co Ltd
Original Assignee
Sumitomo Cement Co 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 Sumitomo Cement Co Ltd filed Critical Sumitomo Cement Co Ltd
Priority to JP7736481A priority Critical patent/JPS57193620A/en
Publication of JPS57193620A publication Critical patent/JPS57193620A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

PURPOSE:To reduce the number of pits to be excavated by a method in which plural stages of horizontal holes are formed in the axial direction of pits when improving a soft ground by injecting a soil stabilizer into plural pits excavated and hardening it. CONSTITUTION:During the improving work for a soft ground, a casing 4 is turned by a driver 5 set on a base 10 and lowered by an oil-pressure cylinder 6, whereupon a pit 1 is excavated in soft ground G. After the pit 1 is excavated to a given depth, the cylinder 6 is stopped, and the casing 4 is reversely turned, whereby an excavating blade 17 for horizontal hole, housed in a housing chamber 18 when turning normally the casing 4, is projected by a centrifugal force to excavate the horizontal hole 23. In this case, a soil stabilizer is supplied through the casing 4 and mixed with soil. Afterwards, the casing 4 is normally turned to house the blade 17 in the chamber 18, and the casing 4 is also raised by a given distance for repeating the excavating process for the horizontal hole 23. Thus, soft ground can be improved.
JP7736481A 1981-05-23 1981-05-23 Method and apparatus for improving soft ground Pending JPS57193620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7736481A JPS57193620A (en) 1981-05-23 1981-05-23 Method and apparatus for improving soft ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7736481A JPS57193620A (en) 1981-05-23 1981-05-23 Method and apparatus for improving soft ground

Publications (1)

Publication Number Publication Date
JPS57193620A true JPS57193620A (en) 1982-11-29

Family

ID=13631845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7736481A Pending JPS57193620A (en) 1981-05-23 1981-05-23 Method and apparatus for improving soft ground

Country Status (1)

Country Link
JP (1) JPS57193620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070637U (en) * 1983-10-24 1985-05-18 株式会社武智工務所 Equipment for creating soil improvement pillars, etc.
JPS60203730A (en) * 1984-02-04 1985-10-15 Mitsui Constr Co Ltd Foundation structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934112A (en) * 1972-08-02 1974-03-29
JPS5326005A (en) * 1976-08-20 1978-03-10 Tokyo Kiyuukou Dentetsu Kk Improvement of track board
JPS543321A (en) * 1977-06-10 1979-01-11 Seini Ichikawa Method of improving ultraaweak ground and its device
JPS5471812A (en) * 1977-11-21 1979-06-08 Kajima Corp Method of constructing continuous boards underground

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934112A (en) * 1972-08-02 1974-03-29
JPS5326005A (en) * 1976-08-20 1978-03-10 Tokyo Kiyuukou Dentetsu Kk Improvement of track board
JPS543321A (en) * 1977-06-10 1979-01-11 Seini Ichikawa Method of improving ultraaweak ground and its device
JPS5471812A (en) * 1977-11-21 1979-06-08 Kajima Corp Method of constructing continuous boards underground

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070637U (en) * 1983-10-24 1985-05-18 株式会社武智工務所 Equipment for creating soil improvement pillars, etc.
JPH018587Y2 (en) * 1983-10-24 1989-03-08
JPS60203730A (en) * 1984-02-04 1985-10-15 Mitsui Constr Co Ltd Foundation structure

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