JPS6424911A - Method and apparatus for preventing levitation of paper drain material - Google Patents

Method and apparatus for preventing levitation of paper drain material

Info

Publication number
JPS6424911A
JPS6424911A JP18301187A JP18301187A JPS6424911A JP S6424911 A JPS6424911 A JP S6424911A JP 18301187 A JP18301187 A JP 18301187A JP 18301187 A JP18301187 A JP 18301187A JP S6424911 A JPS6424911 A JP S6424911A
Authority
JP
Japan
Prior art keywords
mandrel
paper drain
levitation
compressed air
drain material
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
JP18301187A
Other languages
Japanese (ja)
Other versions
JPH0756132B2 (en
Inventor
Kosuke Takano
Masayuki Miura
Takahiro Kawakami
Tomohiro Isoda
Tadaaki Nomura
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.)
Kajima Corp
Fudo Tetra Corp
Original Assignee
Kajima Corp
Fudo Construction 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 Kajima Corp, Fudo Construction Co Ltd filed Critical Kajima Corp
Priority to JP62183011A priority Critical patent/JPH0756132B2/en
Publication of JPS6424911A publication Critical patent/JPS6424911A/en
Publication of JPH0756132B2 publication Critical patent/JPH0756132B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

PURPOSE:To prevent the levitation of paper drain materials by a method in which paper drain materials are separated from a mandrel by jetting compressed air from a nozzle provided for the tip of the mandrel. CONSTITUTION:A paper drain material 1 is placed through a mandrel 2 into the ground, and compressed air is jetted from the nozzle 3 of the tip of the mandrel 2 toward the lower end of the material 1 to separate the material 1 from the mandrel 2. Afterwards, the mandrel 2 is pulled up under the condition that the material is left behind in the ground as the compressed air is present. The paper drain materials can be placed at exact positions without accompanying levitation by a very simplified constitution.
JP62183011A 1987-07-22 1987-07-22 Co-up prevention device for paper drain material Expired - Lifetime JPH0756132B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62183011A JPH0756132B2 (en) 1987-07-22 1987-07-22 Co-up prevention device for paper drain material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62183011A JPH0756132B2 (en) 1987-07-22 1987-07-22 Co-up prevention device for paper drain material

Publications (2)

Publication Number Publication Date
JPS6424911A true JPS6424911A (en) 1989-01-26
JPH0756132B2 JPH0756132B2 (en) 1995-06-14

Family

ID=16128176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62183011A Expired - Lifetime JPH0756132B2 (en) 1987-07-22 1987-07-22 Co-up prevention device for paper drain material

Country Status (1)

Country Link
JP (1) JPH0756132B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190726U (en) * 1986-05-21 1987-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190726U (en) * 1986-05-21 1987-12-04

Also Published As

Publication number Publication date
JPH0756132B2 (en) 1995-06-14

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