JPH0346598U - - Google Patents
Info
- Publication number
- JPH0346598U JPH0346598U JP10834289U JP10834289U JPH0346598U JP H0346598 U JPH0346598 U JP H0346598U JP 10834289 U JP10834289 U JP 10834289U JP 10834289 U JP10834289 U JP 10834289U JP H0346598 U JPH0346598 U JP H0346598U
- Authority
- JP
- Japan
- Prior art keywords
- seal
- seal member
- tail
- shield excavator
- shield
- 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
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 239000013013 elastic material Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
Description
第１図はこの考案の一実施例になるテールシー
ル装置の断面図、第２図および第３図はそれぞれ
第１図のシール部材の他の実施例を示し、第４図
ないし第８図はテールシール装置のさらに別の実
施例を示す説明図である。
１……シールド本体、７……シール部材、１２
……保護板、１３……トンネル内壁、２０……シ
ール部材、２１……シールシート、２４……バツ
クアツプシール。
FIG. 1 is a sectional view of a tail seal device which is an embodiment of this invention, FIGS. 2 and 3 respectively show other embodiments of the sealing member shown in FIG. 1, and FIGS. It is an explanatory view showing still another example of a tail seal device. 1... Shield body, 7... Seal member, 12
...protection plate, 13 ... tunnel inner wall, 20 ... seal member, 21 ... seal sheet, 24 ... back-up seal.
Claims (1)
するシールド掘進機において、シールド本体１の
後部外周面に圧力流体により膨張自在なシール部
材７を設けると共に、このシール部材７を耐摩性
を有する保護板１２を介してトンネル内壁１３へ
圧接することにより打設したコンクリートなどが
切羽側へ流入するのを防止するようにしてなるシ
ールド掘進機のテールシール装置。 (2) シールド本体１の後部外周面に板ばねより
なるシール部材２０を放射方向へ積層して設ける
と共に、これらシール部材２０の間に不透水性シ
ールシート２１を介在させて各シール部材２０間
のシールを行うようにしてなるシールド掘進機の
テールシール装置。 (3) シール部材２０の裏側に弾性体よりなるバ
ツクアツプシール２４を設けて、このバツクアツ
プシール２４によりシール部材２０をトンネル内
壁１３へ圧接してなる請求項(2)記載のテールシ
ール部材。[Scope of Claim for Utility Model Registration] (1) In a shield excavator used for the direct concrete lining method, a seal member 7 which is expandable by pressure fluid is provided on the rear outer peripheral surface of the shield body 1, and this seal member 7 is A tail seal device for a shield excavator which prevents poured concrete, etc. from flowing into the face side by press-contacting it to the tunnel inner wall 13 through a protective plate 12 having wear resistance. (2) Seal members 20 made of leaf springs are stacked in the radial direction on the rear outer circumferential surface of the shield body 1, and a water-impermeable seal sheet 21 is interposed between these seal members 20 so that the seal members 20 are separated from each other. A tail seal device for a shield excavator that performs the sealing process. (3) The tail seal member according to claim (2), wherein a back-up seal 24 made of an elastic material is provided on the back side of the seal member 20, and the seal member 20 is pressed against the tunnel inner wall 13 by the back-up seal 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10834289U JPH0346598U (en) | 1989-09-18 | 1989-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10834289U JPH0346598U (en) | 1989-09-18 | 1989-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0346598U true JPH0346598U (en) | 1991-04-30 |
Family
ID=31656983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10834289U Pending JPH0346598U (en) | 1989-09-18 | 1989-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0346598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019183452A (en) * | 2018-04-05 | 2019-10-24 | 日本シビックコンサルタント株式会社 | Tail seal of shield machine |
-
1989
- 1989-09-18 JP JP10834289U patent/JPH0346598U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019183452A (en) * | 2018-04-05 | 2019-10-24 | 日本シビックコンサルタント株式会社 | Tail seal of shield machine |
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