JPH0441595U - - Google Patents
Info
- Publication number
- JPH0441595U JPH0441595U JP8393690U JP8393690U JPH0441595U JP H0441595 U JPH0441595 U JP H0441595U JP 8393690 U JP8393690 U JP 8393690U JP 8393690 U JP8393690 U JP 8393690U JP H0441595 U JPH0441595 U JP H0441595U
- Authority
- JP
- Japan
- Prior art keywords
- water
- permeable layer
- waterproof sheet
- layer
- narrower
- 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
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 6
- 239000004698 Polyethylene Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
Description
第１図 従来の防水シートの断面構造。
ａ……遮水シート、ｂ……透水層、イ……遮水
シートと透水層の接合部、ロ……透水層の非接合
部（自由端）。
第２図 従来の防水シートの地山への固定例。
Ａ……地山もしくは一次コンクリート、ｃ……
固定用釘。
第３図 従来の防水シートの接合部と釘打込み
不良図。
｛３−１，３−２｝……２次コンクリート打設
前、３−３……２次コンクリート打設後、Ｂ……
２次コンクリート、ｃ′，ｃ″……不良釘、ハ…
…遮水シートの接合部、ニ……遮水シートの破損
部。
第４図 従来の防水シートの釘打込み不良対策
として発泡板を挿入した一例図。
ｄ……挿入されたＰＥ発泡板。
第５図 本考案による防水シートの断面と実施
状況図断面。
５−１……本考案の防水シート断面、ｅ……防
護用シート、ホ……接合部、ヘ……非接合部（自
由端）、５−２……地山に固定した状態図、５−
３……二次コンクリートの打設後の状態。
第６図 本考案による防水シート断面と実施状
況断面。
６−１……本考案の防水シート断面、ｅ′……
防護用シート、ホ……接合部、ヘ……非接合部、
６−２……地山に固定した状態図。
Figure 1 Cross-sectional structure of a conventional waterproof sheet. a...water-shielding sheet, b...water-permeable layer, a...junction between the water-shielding sheet and the water-permeable layer, b...non-joined portion (free end) of the water-permeable layer. Figure 2: Example of fixing a conventional waterproof sheet to the ground. A... Earth or primary concrete, c...
Fixing nails. Figure 3: Diagram of the joint of a conventional waterproof sheet and a defective nail drive. {3-1, 3-2}...Before secondary concrete placement, 3-3...After secondary concrete placement, B...
Secondary concrete, c', c''...defective nail, c...
...Joint part of the water-blocking sheet, D...Damaged part of the water-blocking sheet. Figure 4: An example of inserting a foam board as a countermeasure against nail-driving failures in conventional waterproof sheets. d...Inserted PE foam board. Fig. 5 A cross section of the waterproof sheet according to the present invention and a cross section showing the implementation status. 5-1...Cross section of the waterproof sheet of the present invention, e...protective sheet, H...joint area, H...non-joint area (free end), 5-2...state diagram fixed to the ground, 5 −
3... Condition after placing secondary concrete. Figure 6: A cross-section of the waterproof sheet according to the present invention and a cross-section of the state of implementation. 6-1...Cross section of the waterproof sheet of the present invention, e'...
Protective sheet, H...joint area, H...non-joint area,
6-2... State diagram fixed to the ground.
Claims (1)
がその両側に自由端を残し又は残さずに一体に接
合され、かつ透水層ｂの両側に該透水層より巾が
せまくしかも透水層と同材質である帯状防護シー
トｅ又はｅ′を枝分かれ状に接合したことを特徴
とするトンネル覆工用防水シート。 (2) 透水層および帯状防護層が不織布あるいは
発泡ポリエチレン等の発泡プラスチツクよりなる
請求項１記載の防水シート。[Scope of claims for utility model registration] (1) A narrower permeable layer b on the impermeable layer a
are integrally joined with or without leaving free ends on both sides, and on both sides of the water-permeable layer b, strip-shaped protective sheets e or e' narrower in width than the water-permeable layer and made of the same material as the water-permeable layer are branched. A waterproof sheet for tunnel lining, which is characterized by being bonded. (2) The waterproof sheet according to claim 1, wherein the water-permeable layer and the band-shaped protective layer are made of a nonwoven fabric or a foamed plastic such as foamed polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8393690U JP2513019Y2 (en) | 1990-08-08 | 1990-08-08 | Improved waterproof sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8393690U JP2513019Y2 (en) | 1990-08-08 | 1990-08-08 | Improved waterproof sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441595U true JPH0441595U (en) | 1992-04-08 |
| JP2513019Y2 JP2513019Y2 (en) | 1996-10-02 |
Family
ID=31632022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8393690U Expired - Fee Related JP2513019Y2 (en) | 1990-08-08 | 1990-08-08 | Improved waterproof sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513019Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224637A (en) * | 2001-02-05 | 2002-08-13 | Kiso Kogyo Kk | Method for laying protection sheet for water barrier sheet |
-
1990
- 1990-08-08 JP JP8393690U patent/JP2513019Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224637A (en) * | 2001-02-05 | 2002-08-13 | Kiso Kogyo Kk | Method for laying protection sheet for water barrier sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2513019Y2 (en) | 1996-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R323531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |