JPS6192559U - - Google Patents
Info
- Publication number
- JPS6192559U JPS6192559U JP17827484U JP17827484U JPS6192559U JP S6192559 U JPS6192559 U JP S6192559U JP 17827484 U JP17827484 U JP 17827484U JP 17827484 U JP17827484 U JP 17827484U JP S6192559 U JPS6192559 U JP S6192559U
- Authority
- JP
- Japan
- Prior art keywords
- abrasive jet
- main body
- nozzle
- jet nozzle
- pilot hole
- 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
Links
- 239000000203 mixture Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
第１図は従来のトンネル工法を説明するための
概念図、第２図は本考案のアブレツシブジエツト
ノズルの１実施例を示す断面図、第３図は本考案
を縁切り工法に適用した場合を説明するための概
念図である。
Ｄ……スリツト、Ｐ……パイロツト孔、Ｒ……
岩盤（被切削物）、Ｔ……トンネル、１……アブ
レツシブジエツトノズル、２……本体、３，３…
…ノズル、４……流路、５……高圧室。
Figure 1 is a conceptual diagram for explaining the conventional tunnel construction method, Figure 2 is a sectional view showing one embodiment of the abrasive jet nozzle of the present invention, and Figure 3 is a case in which the present invention is applied to the edge cutting method. It is a conceptual diagram for explaining. D...slit, P...pilot hole, R...
Rock (workpiece), T...Tunnel, 1...Abrasive jet nozzle, 2...Main body, 3, 3...
... Nozzle, 4 ... Channel, 5 ... High pressure chamber.
Claims (1)
て、該パイロツト孔内にアブレツシブジエツトノ
ズルを移動させながらアブレツシブジエツトを側
壁に向けて半径方向外方に噴出させてスリツトを
形成するのに使用するアブレツシブジエツトノズ
ルにおいて、粒状物と高圧水との混合物が圧送さ
れる流路がその長手方向に形成され、かつ高圧室
がその端部に形成されている本体と、前記高圧室
から混合物を本体の長手方向に対して略直角に噴
出するよう本体外周の一部に設けられているノズ
ルからなり、前記ノズルは混合物の噴出反力を相
殺するように流体力学的に対称位置に本体外周に
設けられていることを特徴とするアブレツシブジ
エツトノズル。 A pilot hole is drilled at a predetermined position in the workpiece, and the abrasive jet is ejected radially outward toward the side wall while moving the abrasive jet nozzle into the pilot hole to form a slit. An abrasive jet nozzle used for It consists of a nozzle installed on a part of the outer periphery of the main body so as to eject the mixture from the high pressure chamber approximately perpendicular to the longitudinal direction of the main body, and the nozzle is hydrodynamically symmetrical so as to cancel out the reaction force of ejecting the mixture. An abrasive jet nozzle characterized by being provided at a position on the outer periphery of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984178274U JPH0422960Y2 (en) | 1984-11-26 | 1984-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984178274U JPH0422960Y2 (en) | 1984-11-26 | 1984-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6192559U true JPS6192559U (en) | 1986-06-16 |
| JPH0422960Y2 JPH0422960Y2 (en) | 1992-05-27 |
Family
ID=30735843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984178274U Expired JPH0422960Y2 (en) | 1984-11-26 | 1984-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422960Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55165760U (en) * | 1979-05-14 | 1980-11-28 |
-
1984
- 1984-11-26 JP JP1984178274U patent/JPH0422960Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55165760U (en) * | 1979-05-14 | 1980-11-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0422960Y2 (en) | 1992-05-27 |
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