JPS5520802A - Construction of chemical grouting pipe - Google Patents

Construction of chemical grouting pipe

Info

Publication number
JPS5520802A
JPS5520802A JP9252578A JP9252578A JPS5520802A JP S5520802 A JPS5520802 A JP S5520802A JP 9252578 A JP9252578 A JP 9252578A JP 9252578 A JP9252578 A JP 9252578A JP S5520802 A JPS5520802 A JP S5520802A
Authority
JP
Japan
Prior art keywords
chemical
jet
slantly
air jet
jetting
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
JP9252578A
Other languages
Japanese (ja)
Other versions
JPS575930B2 (en
Inventor
Minoru Inaba
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.)
Nitto Techno Group KK
Original Assignee
Nitto Techno Group KK
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 Nitto Techno Group KK filed Critical Nitto Techno Group KK
Priority to JP9252578A priority Critical patent/JPS5520802A/en
Publication of JPS5520802A publication Critical patent/JPS5520802A/en
Publication of JPS575930B2 publication Critical patent/JPS575930B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent the deterioration in the function of surrounding the chemical jetting with an air jet cover by upward inclined setting of the jetting in a chemical grouting pipe used for the subsoil improvement in the excavated bottom bed.
CONSTITUTION: When the casing drilled hole is pierced, the drilled hole water is fed to a tip excavating section 4 through a guide hollow 5. Then, an excavation is performed as specified. Subsequantly, in the withdrawing process, a chemical is fed with a changeover valve 7 of the guide hollow 5 and slantly jetted up through a nozzle 11. On the other hand, an air jet from another air feed hollow 8 is also slantly injected up sorrounding the chemical jet to ensure that the chemical jet reachs the fixed diameter reducing the earth pressure to the jet due to the withdrawal of the casing 2. In this manner, the chemical is stirred with crushed soil by the air jet to form a column body with a set diameter. Furthermore, the air jet surrounding the chemical jet is slantly injected upward.
COPYRIGHT: (C)1980,JPO&Japio
JP9252578A 1978-07-31 1978-07-31 Construction of chemical grouting pipe Granted JPS5520802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9252578A JPS5520802A (en) 1978-07-31 1978-07-31 Construction of chemical grouting pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9252578A JPS5520802A (en) 1978-07-31 1978-07-31 Construction of chemical grouting pipe

Publications (2)

Publication Number Publication Date
JPS5520802A true JPS5520802A (en) 1980-02-14
JPS575930B2 JPS575930B2 (en) 1982-02-02

Family

ID=14056752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9252578A Granted JPS5520802A (en) 1978-07-31 1978-07-31 Construction of chemical grouting pipe

Country Status (1)

Country Link
JP (1) JPS5520802A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330578U (en) * 1976-08-23 1978-03-16
JPS61166702U (en) * 1985-04-05 1986-10-16
JPH01154912A (en) * 1987-12-10 1989-06-16 Toko Kensetsu Kk Method and apparatus for improving peaty ground
US5228809A (en) * 1989-01-27 1993-07-20 Kajima Corporation Consolidating agent injecting apparatus and injecting apparatus for improving ground
JPH06146260A (en) * 1992-11-10 1994-05-27 Ask Kenkyusho:Kk Forming method of columnar body in ground and device therefor
JP2012062616A (en) * 2010-09-14 2012-03-29 Maeda Corp High pressure jet agitation method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330578U (en) * 1976-08-23 1978-03-16
JPS5632245Y2 (en) * 1976-08-23 1981-07-31
JPS61166702U (en) * 1985-04-05 1986-10-16
JPH0524401Y2 (en) * 1985-04-05 1993-06-22
JPH01154912A (en) * 1987-12-10 1989-06-16 Toko Kensetsu Kk Method and apparatus for improving peaty ground
US5228809A (en) * 1989-01-27 1993-07-20 Kajima Corporation Consolidating agent injecting apparatus and injecting apparatus for improving ground
JPH06146260A (en) * 1992-11-10 1994-05-27 Ask Kenkyusho:Kk Forming method of columnar body in ground and device therefor
JP2012062616A (en) * 2010-09-14 2012-03-29 Maeda Corp High pressure jet agitation method

Also Published As

Publication number Publication date
JPS575930B2 (en) 1982-02-02

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