JPH01136599U - - Google Patents
Info
- Publication number
- JPH01136599U JPH01136599U JP2274788U JP2274788U JPH01136599U JP H01136599 U JPH01136599 U JP H01136599U JP 2274788 U JP2274788 U JP 2274788U JP 2274788 U JP2274788 U JP 2274788U JP H01136599 U JPH01136599 U JP H01136599U
- Authority
- JP
- Japan
- Prior art keywords
- injection
- cleaning liquid
- backfilling
- plug piston
- 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
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000005641 tunneling Effects 0.000 claims description 5
- 239000011800 void material Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 7
- 230000015271 coagulation Effects 0.000 claims 2
- 238000005345 coagulation Methods 0.000 claims 2
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
Description
第１図はこの考案の一実施例を示すシールド掘
進機の背面図、第２図は第１図の―線断面図
、第３図は第２図の―線断面図、第４図は洗
浄時のマニホールドを示す平面断面図、第５図は
第２図のＶ―Ｖ線断面図、第６図は第２図の―
線断面図、第７図は従来例の縦断面図である。
１……シールド掘進機、２……注入装置、３…
…テールプレート、５……マニホールド、６……
プラグピストン、８……混合ノズル孔、８ａ……
下流端、１０……第１の注入管、１１……第１の
注入孔、１１ｄ……開口、２０……第２の注入管
、２１……第２の注入孔、２１ｄ……開口、４０
……洗浄液通路、４１……第１の洗浄液分岐路、
４２……第２の洗浄液分岐路、Ａ……テールボイ
ド部、Ｄ……下流（後方）、Ｆ……上流（前方）
。
Fig. 1 is a rear view of a shield tunneling machine showing an embodiment of this invention, Fig. 2 is a sectional view along the line - - of Fig. 1, Fig. 3 is a sectional view taken along the line - - of Fig. 2, and Fig. 4 is a cleaning 5 is a sectional view taken along the line V-V in FIG. 2, and FIG. 6 is a sectional view taken along the line V-V in FIG. 2.
The line sectional view and FIG. 7 are longitudinal sectional views of the conventional example. 1... Shield tunneling machine, 2... Injection device, 3...
...Tail plate, 5...Manifold, 6...
Plug piston, 8...Mixing nozzle hole, 8a...
Downstream end, 10...first injection pipe, 11...first injection hole, 11d...opening, 20...second injection pipe, 21...second injection hole, 21d...opening, 40
...Cleaning liquid passage, 41...First cleaning liquid branch path,
42...Second cleaning liquid branch path, A...Tail void portion, D...Downstream (rear), F...Upstream (front)
.
Claims (1)
のテールボイド部に裏込材を注入するシールド掘
進機の裏込材注入装置であつて、 上記シールド掘進機の後部における外周に固定
されたマニホールドには、第１の注入管に連通し
て、裏込主材を注入する第１の注入孔と、第２の
注入管に連通して、上記裏込主材の凝固を促進す
る凝固促進剤を注入する第２の注入孔と、上記両
注入孔が開口し、上記裏込主材と上記凝固促進剤
とを合流させて混合された裏込材をテールボイド
部に吐出する混合ノズル孔とが形成され、 上記混合ノズル孔には、上記両注入孔の開口よ
りも上流側と、上記両注入孔の開口よりも下流側
の位置であつて、かつ上記混合ノズル孔の下流端
近傍とに、選択的に停止するプラグピストンが摺
動自在に設けられ、 上記プラグピストンには、その軸方向に設けら
れて洗浄液を導入する洗浄液通路と、上記プラグ
ピストンの下流端近傍の停止位置において上記第
１および第２の注入孔の開口に対して、上記洗浄
液通路を上記第１および第２の注入孔にそれぞれ
連通させる第１および第２の洗浄液分岐路とが形
成されてなるシールド掘進機の裏込材注入装置。[Scope of Claim for Utility Model Registration] A backfilling material injection device for a shield tunneling machine that injects a backfilling material into the tail void portion at the rear of the tail plate of the shield tunneling machine, which is fixed to the outer periphery at the rear of the shield tunneling machine. The manifold has a first injection hole that communicates with the first injection pipe and injects the backfilling main material, and a coagulation hole that communicates with the second injection pipe and promotes solidification of the backfilling main material. a second injection hole for injecting an accelerator, and a mixing nozzle hole in which both of the injection holes are opened and the main backfilling material and the coagulation accelerator are merged and the mixed backfilling material is discharged into the tail void part. The mixing nozzle hole has a position upstream of the openings of both injection holes, and a position downstream of the openings of both injection holes, and near the downstream end of the mixing nozzle hole. A plug piston that selectively stops is slidably provided in the plug piston, and the plug piston has a cleaning liquid passage provided in the axial direction of the plug piston to introduce cleaning liquid, and a cleaning liquid passage provided in the axial direction of the plug piston to introduce the cleaning liquid, and a A shield excavator, wherein first and second cleaning liquid branch paths are formed for openings of the first and second injection holes to communicate the cleaning liquid passage with the first and second injection holes, respectively. Backfilling material injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022747U JPH0542159Y2 (en) | 1988-02-22 | 1988-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988022747U JPH0542159Y2 (en) | 1988-02-22 | 1988-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01136599U true JPH01136599U (en) | 1989-09-19 |
| JPH0542159Y2 JPH0542159Y2 (en) | 1993-10-25 |
Family
ID=31241135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988022747U Expired - Lifetime JPH0542159Y2 (en) | 1988-02-22 | 1988-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542159Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103397U (en) * | 1990-02-05 | 1991-10-28 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58171996U (en) * | 1982-04-30 | 1983-11-17 | 日立建機株式会社 | Backfilling material injection device for shield excavator |
-
1988
- 1988-02-22 JP JP1988022747U patent/JPH0542159Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58171996U (en) * | 1982-04-30 | 1983-11-17 | 日立建機株式会社 | Backfilling material injection device for shield excavator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103397U (en) * | 1990-02-05 | 1991-10-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542159Y2 (en) | 1993-10-25 |
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