JPS5751326A - Soft ground improvement work capable of reducing side pressure - Google Patents

Soft ground improvement work capable of reducing side pressure

Info

Publication number
JPS5751326A
JPS5751326A JP12465380A JP12465380A JPS5751326A JP S5751326 A JPS5751326 A JP S5751326A JP 12465380 A JP12465380 A JP 12465380A JP 12465380 A JP12465380 A JP 12465380A JP S5751326 A JPS5751326 A JP S5751326A
Authority
JP
Japan
Prior art keywords
side pressure
screw
grout
rod
pressure
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.)
Granted
Application number
JP12465380A
Other languages
Japanese (ja)
Other versions
JPS6220329B2 (en
Inventor
Wataru Nakanishi
Minoru Tsujita
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.)
ENU AI TEI KK
ONODA CEMENT KK
Onoda Cement Co Ltd
NIT Co Ltd Japan
NIT Inc
Original Assignee
ENU AI TEI KK
ONODA CEMENT KK
Onoda Cement Co Ltd
NIT Co Ltd Japan
NIT Inc
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 ENU AI TEI KK, ONODA CEMENT KK, Onoda Cement Co Ltd, NIT Co Ltd Japan, NIT Inc filed Critical ENU AI TEI KK
Priority to JP12465380A priority Critical patent/JPS5751326A/en
Publication of JPS5751326A publication Critical patent/JPS5751326A/en
Publication of JPS6220329B2 publication Critical patent/JPS6220329B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

PURPOSE: To prevent the bad influence of side pressure on nearby structures by allowing the side pressure to escape toward inside while excavating and discharging soil by the injection pressure of grout in such a way as to reduce a dislocation applied on the surrounding ground in the improvement of soft ground.
CONSTITUTION: A screw 2 is axially provided to an injection rod 1, a stirring head 4 with a blade 3 is connected to the tip of the screw 2, and also a swivel 6 connected with a grout feed hose 5 is attached to the top of the screw 2. When a driver 3 is operated and the screw 2 is turned and excavates the ground to a given depth, a grout from the hose 5 is sent under high pressure to the rod 1 and injected horizontally to the rod 1 from a nozzle 9 at the tip of the blade 3 to form a hardened layer A. In this case, the injection pressure of the grout is allowed to escape into excavated cavity (a) to reduce the side pressure.
COPYRIGHT: (C)1982,JPO&Japio
JP12465380A 1980-09-10 1980-09-10 Soft ground improvement work capable of reducing side pressure Granted JPS5751326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12465380A JPS5751326A (en) 1980-09-10 1980-09-10 Soft ground improvement work capable of reducing side pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12465380A JPS5751326A (en) 1980-09-10 1980-09-10 Soft ground improvement work capable of reducing side pressure

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10944285A Division JPS615115A (en) 1985-05-23 1985-05-23 Formation of hardened stratum of ground

Publications (2)

Publication Number Publication Date
JPS5751326A true JPS5751326A (en) 1982-03-26
JPS6220329B2 JPS6220329B2 (en) 1987-05-06

Family

ID=14890724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12465380A Granted JPS5751326A (en) 1980-09-10 1980-09-10 Soft ground improvement work capable of reducing side pressure

Country Status (1)

Country Link
JP (1) JPS5751326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615115A (en) * 1985-05-23 1986-01-10 N I T:Kk Formation of hardened stratum of ground

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4625573B2 (en) * 2000-11-10 2011-02-02 清水建設株式会社 Ground improvement method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740019A (en) * 1980-08-21 1982-03-05 Kensetsusho Doboku Kenkyu Shocho Powder injector for improvement of ground

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740019A (en) * 1980-08-21 1982-03-05 Kensetsusho Doboku Kenkyu Shocho Powder injector for improvement of ground

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615115A (en) * 1985-05-23 1986-01-10 N I T:Kk Formation of hardened stratum of ground

Also Published As

Publication number Publication date
JPS6220329B2 (en) 1987-05-06

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