JPS5751324A - Formation of knotty hardened layer - Google Patents

Formation of knotty hardened layer

Info

Publication number
JPS5751324A
JPS5751324A JP12412280A JP12412280A JPS5751324A JP S5751324 A JPS5751324 A JP S5751324A JP 12412280 A JP12412280 A JP 12412280A JP 12412280 A JP12412280 A JP 12412280A JP S5751324 A JPS5751324 A JP S5751324A
Authority
JP
Japan
Prior art keywords
grout
rod
hardened layer
knotty
nozzle
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
JP12412280A
Other languages
Japanese (ja)
Other versions
JPS6329050B2 (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.)
Taiheiyo Cement Corp
NIT Co Ltd Japan
NIT Inc
Original Assignee
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 Onoda Cement Co Ltd, NIT Co Ltd Japan, NIT Inc filed Critical Onoda Cement Co Ltd
Priority to JP12412280A priority Critical patent/JPS5751324A/en
Publication of JPS5751324A publication Critical patent/JPS5751324A/en
Publication of JPS6329050B2 publication Critical patent/JPS6329050B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

PURPOSE: To form knotty hardened layers in the improvement of the ground by a method in which a cross arm nozzle extending from a grout injection rod toward the excavating direction of jet stream is provided and a grout is jetted under high pressure from the tip of the rod while regulating the lifting rate of the rod and the amount of the grout injected.
CONSTITUTION: A cross arm nozzle 3 is provided at an angle to an injection rod 1 to its tip, and a grout feed hose 6 is connected through a swivel 5 to the rear end of the rod 1. When the injection rod 1 is penetrated to a given depth into the ground and turned and lifted while jetting the grout from a nozzle 4 under high pressure, the grout is injected into and mixed with the soil in and around the turning locus of the nozzle 4 to construct a cylindrical hardened layer A. When the lifting rate of the rod is dropped and dense injection of the grout is made when the rod is lifted to a given position, the saturated grout goes toward the inside and outside of the hardened layer A to construct knotty hardened layer B.
COPYRIGHT: (C)1982,JPO&Japio
JP12412280A 1980-09-09 1980-09-09 Formation of knotty hardened layer Granted JPS5751324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12412280A JPS5751324A (en) 1980-09-09 1980-09-09 Formation of knotty hardened layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12412280A JPS5751324A (en) 1980-09-09 1980-09-09 Formation of knotty hardened layer

Publications (2)

Publication Number Publication Date
JPS5751324A true JPS5751324A (en) 1982-03-26
JPS6329050B2 JPS6329050B2 (en) 1988-06-10

Family

ID=14877459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12412280A Granted JPS5751324A (en) 1980-09-09 1980-09-09 Formation of knotty hardened layer

Country Status (1)

Country Link
JP (1) JPS5751324A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003027399A1 (en) * 2001-09-20 2003-04-03 Yugenkaisha Newtechkenkyusha Ground improving construction method and ground improving device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02109962U (en) * 1989-02-21 1990-09-03

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55108519A (en) * 1980-02-05 1980-08-20 Kyokado Eng Co Ltd Combined grouting method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55108519A (en) * 1980-02-05 1980-08-20 Kyokado Eng Co Ltd Combined grouting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003027399A1 (en) * 2001-09-20 2003-04-03 Yugenkaisha Newtechkenkyusha Ground improving construction method and ground improving device

Also Published As

Publication number Publication date
JPS6329050B2 (en) 1988-06-10

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