JPS63171490U - - Google Patents
Info
- Publication number
- JPS63171490U JPS63171490U JP6505987U JP6505987U JPS63171490U JP S63171490 U JPS63171490 U JP S63171490U JP 6505987 U JP6505987 U JP 6505987U JP 6505987 U JP6505987 U JP 6505987U JP S63171490 U JPS63171490 U JP S63171490U
- Authority
- JP
- Japan
- Prior art keywords
- wellhead
- annular packing
- pipe body
- propulsion
- outer periphery
- 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
- 238000012856 packing Methods 0.000 claims description 6
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図は本考案の実施例を示す全体の簡略縦断
側面図、第２図はその要部の拡大縦断側面図、第
３図は従来の坑口の縦断側面図である。
１……第１の坑口、２……発進立坑、５……シ
ールド機、６……スキンプレート、７……管体、
８……第１の環状パツキン、１２……第２の坑口
、１３……第２の環状パツキン。
FIG. 1 is a simplified vertical side view of the entire structure showing an embodiment of the present invention, FIG. 2 is an enlarged vertical side view of the main part thereof, and FIG. 3 is a vertical side view of a conventional mine entrance. 1...First mine entrance, 2...Starting shaft, 5...Shield machine, 6...Skin plate, 7...Pipe body,
8...First annular packing, 12...Second wellhead, 13...Second annular packing.
Claims (1)
１の発進立坑側に、該第１の坑口１に密接してこ
の坑口１よりも小径の第２の坑口１２を形成し、
この第２の坑口１２に管体の外周に摺接する第２
の環状パツキン１３を装着したことを特徴とする
管体推進用坑口。 第１の環状パツキン８と第２の環状パツキン
１３との間隔幅が管体の接合端部外周に被覆した
セグメント幅よりも大である実用新案登録請求の
範囲第１項記載の管体推進坑口。[Scope of Claim for Utility Model Registration] On the starting shaft side of the first wellhead 1 equipped with the first annular packing 8, there is a second wellhead 12 which is closely connected to the first wellhead 1 and has a smaller diameter than the first wellhead 1. form,
A second well that slides into contact with the outer periphery of the pipe body at this second well opening 12
A tunnel entrance for propulsion, characterized in that it is equipped with an annular packing 13. Pipe body propulsion wellhead according to claim 1, wherein the interval width between the first annular packing 8 and the second annular packing 13 is larger than the segment width covering the outer periphery of the joint end of the pipe body. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987065059U JPH0512391Y2 (en) | 1987-04-28 | 1987-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987065059U JPH0512391Y2 (en) | 1987-04-28 | 1987-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63171490U true JPS63171490U (en) | 1988-11-08 |
| JPH0512391Y2 JPH0512391Y2 (en) | 1993-03-30 |
Family
ID=30901787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987065059U Expired - Lifetime JPH0512391Y2 (en) | 1987-04-28 | 1987-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512391Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523871U (en) * | 1975-06-24 | 1977-01-12 |
-
1987
- 1987-04-28 JP JP1987065059U patent/JPH0512391Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523871U (en) * | 1975-06-24 | 1977-01-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512391Y2 (en) | 1993-03-30 |
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