JPS646410A - Method and apparatus for improving ground - Google Patents

Method and apparatus for improving ground

Info

Publication number
JPS646410A
JPS646410A JP16065787A JP16065787A JPS646410A JP S646410 A JPS646410 A JP S646410A JP 16065787 A JP16065787 A JP 16065787A JP 16065787 A JP16065787 A JP 16065787A JP S646410 A JPS646410 A JP S646410A
Authority
JP
Japan
Prior art keywords
ground
blade
stirring
rod
normally
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
JP16065787A
Other languages
Japanese (ja)
Inventor
Atsuo Fukuda
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.)
TENOTSUKUSU KK
Tenox Corp
Original Assignee
TENOTSUKUSU KK
Tenox Corp
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 TENOTSUKUSU KK, Tenox Corp filed Critical TENOTSUKUSU KK
Priority to JP16065787A priority Critical patent/JPS646410A/en
Publication of JPS646410A publication Critical patent/JPS646410A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the deformation of the ground by avoiding the volumetric expansion of improve ground by a method in which during injection, stirring, and drawing processes, soil amount which almost coincides with the amount of a solidifying agent to be injected is discharged through a screw mechanisms. CONSTITUTION:A stirring head 11 having an opening or closing stirring blade 14 on the lower end of a screw rod 13 is connected to the rod body 10. The rod body 10 is normally turned in the closed state by the blade 14 until excavated to the lower end of an improving section, the blade 14 is opened and pulled up while turning normally and injecting a solidifying agent S with high pressures, and the soil is discharged by the rod 13 at the same time as the stirring is made. The rod 10 is pulled up by normally or reversely turning under the condition that the blade 14 is closed in the section not to be improved. Since the volumetric expansion of the improved ground can be avoided and the deformation of the ground can thereby be prevented, the effect on the surrounding underground structure can be obviated.
JP16065787A 1987-06-27 1987-06-27 Method and apparatus for improving ground Pending JPS646410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16065787A JPS646410A (en) 1987-06-27 1987-06-27 Method and apparatus for improving ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16065787A JPS646410A (en) 1987-06-27 1987-06-27 Method and apparatus for improving ground

Publications (1)

Publication Number Publication Date
JPS646410A true JPS646410A (en) 1989-01-11

Family

ID=15719673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16065787A Pending JPS646410A (en) 1987-06-27 1987-06-27 Method and apparatus for improving ground

Country Status (1)

Country Link
JP (1) JPS646410A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633910A (en) * 1984-07-11 1987-01-06 Nobuyuki Sugimura Pulsation absorbing means having one or more valve shoes divided into two parts each displays suitable function
US4705077A (en) * 1985-07-02 1987-11-10 Nobuyuki Sugimura Pulsation damping means incorporating therein an inner cylinder having laminated resilient valve shoes
JPH02221512A (en) * 1989-02-23 1990-09-04 Shohei Senda Method and apparatus for modifying weak ground
JP2007186868A (en) * 2006-01-12 2007-07-26 Yuji Kaneko Soil improving method and soil improving equipment
JP2014145192A (en) * 2013-01-29 2014-08-14 Taisei Corp Improvement body construction system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934112A (en) * 1972-08-02 1974-03-29
JPS6268917A (en) * 1985-09-19 1987-03-30 Fudo Constr Co Ltd Improvement for weak ground

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934112A (en) * 1972-08-02 1974-03-29
JPS6268917A (en) * 1985-09-19 1987-03-30 Fudo Constr Co Ltd Improvement for weak ground

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633910A (en) * 1984-07-11 1987-01-06 Nobuyuki Sugimura Pulsation absorbing means having one or more valve shoes divided into two parts each displays suitable function
US4705077A (en) * 1985-07-02 1987-11-10 Nobuyuki Sugimura Pulsation damping means incorporating therein an inner cylinder having laminated resilient valve shoes
JPH02221512A (en) * 1989-02-23 1990-09-04 Shohei Senda Method and apparatus for modifying weak ground
JP2007186868A (en) * 2006-01-12 2007-07-26 Yuji Kaneko Soil improving method and soil improving equipment
JP2014145192A (en) * 2013-01-29 2014-08-14 Taisei Corp Improvement body construction system

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