JPH025500U - - Google Patents

Info

Publication number
JPH025500U
JPH025500U JP8074888U JP8074888U JPH025500U JP H025500 U JPH025500 U JP H025500U JP 8074888 U JP8074888 U JP 8074888U JP 8074888 U JP8074888 U JP 8074888U JP H025500 U JPH025500 U JP H025500U
Authority
JP
Japan
Prior art keywords
pipe
lock bolt
bored
screws
cold
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
JP8074888U
Other languages
English (en)
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 filed Critical
Priority to JP8074888U priority Critical patent/JPH025500U/ja
Publication of JPH025500U publication Critical patent/JPH025500U/ja
Pending legal-status Critical Current

Links

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  • Joining Of Building Structures In Genera (AREA)

Description

【図面の簡単な説明】
第１図は本考案のロツクボルトの一実施の態様
の一部断面外形図、第２図は本考案のロツクボル
トの他の実施の態様の一部断面外形図、第３図イ
ならびにロは従来の定着剤注入手段をそなえたロ
ツクボルト工法の一例の説明図、第４図は従来の
定着剤注入手段をそなえるロツクボルト工法の他
の例の説明図である。 １……岩石層、２……ボーリング孔、３……ロ
ツクボルト、３１……ワツシヤ、３２……ナツト
、３３……小孔、３４……ネジ、３５……溝、４
……エヤ抜き管、５……定着剤注入管、６……モ
ルタル、７……定着剤。

Claims (1)

    【実用新案登録請求の範囲】
  1. 減面率３０％以上、６０％以下の冷間引抜加工
    を施した鋼管の一端を盲管とし、該一端の近傍の
    管壁に複数の小孔を穿設するとともに、他端の外
    面にネジを設けてなるロツクボルト。
JP8074888U 1988-06-17 1988-06-17 Pending JPH025500U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8074888U JPH025500U (ja) 1988-06-17 1988-06-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8074888U JPH025500U (ja) 1988-06-17 1988-06-17

Publications (1)

Publication Number Publication Date
JPH025500U true JPH025500U (ja) 1990-01-16

Family

ID=31305564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8074888U Pending JPH025500U (ja) 1988-06-17 1988-06-17

Country Status (1)

Country Link
JP (1) JPH025500U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167752A (ja) * 2008-01-18 2009-07-30 Nippon Steel Corp 地盤強化用鋼管、及びそれを使用した地盤強化方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518829A (ja) * 1974-07-09 1976-01-24 Hitachi Ltd
JPS542258A (en) * 1977-06-08 1979-01-09 Kubota Ltd Manufacture of alloy 800 seamless pipe
JPS55126315A (en) * 1979-03-23 1980-09-30 Sumitomo Metal Ind Ltd Drawing method for pipe
JPS625117U (ja) * 1985-06-27 1987-01-13
JPS6221200B2 (ja) * 1980-12-23 1987-05-11 Fujitsu Ltd
JPS6239000B2 (ja) * 1983-01-19 1987-08-20 Matsushita Electric Ind Co Ltd

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518829A (ja) * 1974-07-09 1976-01-24 Hitachi Ltd
JPS542258A (en) * 1977-06-08 1979-01-09 Kubota Ltd Manufacture of alloy 800 seamless pipe
JPS55126315A (en) * 1979-03-23 1980-09-30 Sumitomo Metal Ind Ltd Drawing method for pipe
JPS6221200B2 (ja) * 1980-12-23 1987-05-11 Fujitsu Ltd
JPS6239000B2 (ja) * 1983-01-19 1987-08-20 Matsushita Electric Ind Co Ltd
JPS625117U (ja) * 1985-06-27 1987-01-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009167752A (ja) * 2008-01-18 2009-07-30 Nippon Steel Corp 地盤強化用鋼管、及びそれを使用した地盤強化方法

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