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
Links
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
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。
Fig. 1 is a partial cross-sectional external view of one embodiment of the lock bolt of the present invention, Fig. 2 is a partial cross-sectional external view of another embodiment of the lock bolt of the present invention, and Fig. 3 A and B are conventional FIG. 4 is an explanatory diagram of an example of the lock bolt construction method equipped with a fixer injection means. FIG. 4 is an explanatory diagram of another example of the rock bolt construction method equipped with a conventional fixer injection means. 1...Rock layer, 2...Borehole, 3...Rock bolt, 31...Washer, 32...Nut, 33...Small hole, 34...Screw, 35...Groove, 4
...Air bleed pipe, 5...Fixer injection pipe, 6...Mortar, 7...Fixer.
Claims (1)
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。 One end of a cold-drawn steel pipe with an area reduction of 30% or more and 60% or less is made into a blind pipe, and a plurality of small holes are bored in the pipe wall near the one end, and screws are inserted on the outside surface of the other end. A lock bolt with a
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8074888U JPH025500U (en) | 1988-06-17 | 1988-06-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8074888U JPH025500U (en) | 1988-06-17 | 1988-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH025500U true JPH025500U (en) | 1990-01-16 |
Family
ID=31305564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8074888U Pending JPH025500U (en) | 1988-06-17 | 1988-06-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH025500U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009167752A (en) * | 2008-01-18 | 2009-07-30 | Nippon Steel Corp | Steel pipe for ground reinforcement and method of ground reinforcement using it |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518829A (en) * | 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 (en) * | 1985-06-27 | 1987-01-13 | ||
JPS6221200B2 (en) * | 1980-12-23 | 1987-05-11 | Fujitsu Ltd | |
JPS6239000B2 (en) * | 1983-01-19 | 1987-08-20 | Matsushita Electric Ind Co Ltd |
-
1988
- 1988-06-17 JP JP8074888U patent/JPH025500U/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS518829A (en) * | 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 (en) * | 1980-12-23 | 1987-05-11 | Fujitsu Ltd | |
JPS6239000B2 (en) * | 1983-01-19 | 1987-08-20 | Matsushita Electric Ind Co Ltd | |
JPS625117U (en) * | 1985-06-27 | 1987-01-13 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009167752A (en) * | 2008-01-18 | 2009-07-30 | Nippon Steel Corp | Steel pipe for ground reinforcement and method of ground reinforcement using it |
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