JPH0426501Y2 - - Google Patents
Info
- Publication number
- JPH0426501Y2 JPH0426501Y2 JP8451786U JP8451786U JPH0426501Y2 JP H0426501 Y2 JPH0426501 Y2 JP H0426501Y2 JP 8451786 U JP8451786 U JP 8451786U JP 8451786 U JP8451786 U JP 8451786U JP H0426501 Y2 JPH0426501 Y2 JP H0426501Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- cross
- fin
- section
- opening
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- OQCFWECOQNPQCG-UHFFFAOYSA-N 1,3,4,8-tetrahydropyrimido[4,5-c]oxazin-7-one Chemical compound C1CONC2=C1C=NC(=O)N2 OQCFWECOQNPQCG-UHFFFAOYSA-N 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、止水材に関し、ケーソン等の構築
物間の水密を行うシール材に関する。[Detailed description of the invention] [Industrial application field] This invention relates to a water-stopping material, and relates to a sealing material that provides watertightness between structures such as caissons.
従来、コンクリートブロツクあるいはケーソン
等の構築物間の水密化を図るため、これら構築物
間にゴム状弾性体より成るシール材を圧縮介挿す
ることが行なわれる。
Conventionally, in order to make structures such as concrete blocks or caissons watertight, a sealing material made of a rubber-like elastic body is compressed and inserted between these structures.
このシール材としては例えば第7図に示すよう
にケーソンC,Cをコンクリートにより成形する
際、予め両者間に、巾方向両端縁S1,S2に膨大部
S3,S3を有する帯状のゴム材質から成るシール材
Sを架け渡すように介挿してコンクリート打ちを
行い、コンクリート硬化時の収縮を利用して第8
図に示すようにコンクリート成形部分とシール材
Sの膨大部S3,S3の根元部Pとを圧接させシール
を行うものが知られている。 As this sealing material, for example, as shown in Fig. 7, when forming the caissons C and C with concrete, an enlarged portion is placed between the two in advance on both widthwise edges S 1 and S 2 .
A sealing material S made of a band-shaped rubber material having S 3 and S 3 is inserted so as to bridge the concrete, and concrete is poured.
As shown in the figure, a method is known in which the molded concrete portion is brought into pressure contact with the root portions P of the enlarged portions S 3 and S 3 of the sealing material S to achieve sealing.
上記止水構造は、シール材Sの根元部Pの接す
るコンクリート面が常に均一な平滑面であればシ
ールは達成されるが、コンクリートが現場打ちの
場合、シール材Sとコンクリートとの接触界面に
空気溜りによる、いわゆる「す」が生じやすく、
この「す」が前記根元部Pに生じるとコンクリー
トの収縮率がいかに行でも漏水が生じる欠点があ
つた。
In the water-stopping structure described above, sealing is achieved if the concrete surface in contact with the root portion P of the sealing material S is always a uniform and smooth surface, but if the concrete is cast in place, the contact interface between the sealing material S and the concrete Air pockets tend to cause so-called "su",
If this "su" occurs at the base P, there is a drawback that water leakage occurs regardless of the shrinkage rate of the concrete.
また、予め形状管理可能な状態にケーソン等を
成形しておき、これを現場にて積み重ねることに
より構築することも行われるがケーソン間にシー
ル材を内部圧力を有した状態で埋設介挿させるこ
とが出来ないので、完全なシールは容易に行なえ
ないと言つた問題が有る。 Alternatively, caisson etc. may be formed in advance into a shape that can be controlled and then built by stacking them on site, but it is also possible to embed sealing material between the caissons with internal pressure applied. There is a problem in that a complete seal cannot be easily achieved because it cannot be done.
この考案は、上記問題点に鑑み、ケーソン等の
構築物の水密が確実に達成出来しかも、これらが
予め成形されたものであつても確実にシールの行
なえる止水材を提供することを目的としてなされ
たものである。
In view of the above-mentioned problems, this invention aims to provide a water-stopping material that can reliably achieve watertightness of structures such as caissons, and can also securely seal even pre-formed structures. It has been done.
即ち、この考案の止水材は開口部よりも奥方の
大とされた断面形状を有する溝の奥方部に嵌合す
る膨大断面部及び、前記開口部を通過する狭小断
面部とを有し、前記膨大断面部と狭小断面部の境
界部分には、前記溝の奥方部において、前記開口
部を内側から覆い得るヒレ状体が一体に延出さ
れ、かつ、該ヒレ状体は、前記膨大断面部外周に
沿つて強制的に折曲げられ、水溶解性物質で密着
されて成る、全体がゴム状弾性体で成形されて成
るものである。
That is, the water stop material of this invention has a large cross-sectional part that fits into the deep part of the groove having a cross-sectional shape that is larger in the inner part than the opening part, and a narrow cross-sectional part that passes through the opening part, A fin-like body capable of covering the opening from the inside is integrally extended in the deep part of the groove at the boundary between the enlarged cross-section and the narrow cross-section, and the fin-like body is connected to the enlarged cross-section. The entire body is made of a rubber-like elastic material, which is forcibly bent along the outer periphery and adhered with a water-soluble substance.
次にこの考案を実施例により説明する。 Next, this invention will be explained using examples.
第1図及び第2図はこの考案の実施例の断面
図、第3図〜第6図はこの考案の実施例の作用を
説明する断面図である。 FIGS. 1 and 2 are sectional views of an embodiment of this invention, and FIGS. 3 to 6 are sectional views illustrating the operation of an embodiment of this invention.
この考案の止水材1は、予め成形されたブロツ
ク状のケーソン等の側面に形成された、開口部1
0Aより奥方10Bの大とされた断面形状を有す
る溝10の奥方部10Bに嵌合する膨大断面部1
B及び前記開口部10Aを通過する狭小断面部1
Aを有し、膨大断面部1Bと狭小断面部1Aとの
境界部分には第2図に示すように溝10の奥方部
10Bにおいて開口部10Aを内側から覆い得る
ヒレ状体1C,1Cが一体に延出形成され、か
つ、このヒレ状体1C,1Cが第1図に示すよう
に、膨大断面部1B外周に沿つて強制的に折曲げ
られ、水溶解性物質2で密着されて構成されてい
る。上記において、止水材1は全体がゴム状弾性
体、例えばクロロプレンゴム等で成形され、ま
た、ヒレ状体1C,1Cの密着用水溶解性物質2
としては、例えばオブラート、ポリビニルアルコ
ール、カルボキシメチルセルロースなど、乾燥時
は接着機能を有するが、水により容易に溶解され
る物質が用いられる。なおこれら水溶解性物質の
溶解速度は止水材1の使用目的、場所に応じ適宜
選択され、後述のように止水材1の設置を終了し
た後に溶解するように調整される。 The water stop material 1 of this invention has an opening 1 formed on the side surface of a pre-formed block-shaped caisson, etc.
An enormous cross-sectional portion 1 that fits into the inner portion 10B of the groove 10 having a cross-sectional shape larger at the inner portion 10B than 0A.
B and the narrow cross section 1 passing through the opening 10A.
A, and as shown in FIG. 2, fin-like bodies 1C, 1C that can cover the opening 10A from the inside in the deep part 10B of the groove 10 are integrated at the boundary between the large cross-section part 1B and the narrow cross-section part 1A. As shown in FIG. ing. In the above, the water-stopping material 1 is entirely formed of a rubber-like elastic material such as chloroprene rubber, and the water-soluble material 2 for adhering the fin-like members 1C and 1C
For example, a substance that has an adhesive function when dry, but is easily dissolved in water, such as wafer, polyvinyl alcohol, or carboxymethyl cellulose, is used. Note that the dissolution rate of these water-soluble substances is appropriately selected depending on the intended use and location of the water-stopping material 1, and is adjusted so that it dissolves after the water-stopping material 1 is installed, as described later.
さらに、上記実施例においてヒレ状体1C,1
Cを水膨張性ゴム、例えばポリビニルアルコー
ル、ポリアクリル酸塩、カルボキシメチルセルロ
ース、ヒドロキシエチルセルロース等の吸水性物
質を合成ゴムに配合したゴム組成物としても良
い。 Furthermore, in the above embodiment, the fin-like bodies 1C, 1
C may be a water-swellable rubber, such as a rubber composition in which a water-absorbing substance such as polyvinyl alcohol, polyacrylate, carboxymethyl cellulose, or hydroxyethyl cellulose is blended with synthetic rubber.
尚、図中1Dは止水材1中央部に設けた弾力性
付与のための空洞部である。 Note that 1D in the figure is a hollow portion provided in the center of the water stop material 1 to provide elasticity.
次に、この考案の作用を説明する。 Next, the operation of this invention will be explained.
この考案において、例えばケーソンとしては、
第3図に示すように、奥方部10Bが開口部10
Aより大きい溝10を有する、予め成形したもの
が用いられる。 In this idea, for example, as a caisson,
As shown in FIG. 3, the inner part 10B is the opening 10
A preformed one with a groove 10 larger than A is used.
そして、所定位置にケーソン11を積層後、互
いに対向する溝10,10間にヒレ状体1C,1
Cを密着させた状態の止水材1を図の紙背方向に
挿入し、第4図の状態とする。 After stacking the caisson 11 at a predetermined position, the fin-like bodies 1C, 1 are placed between the grooves 10, 10 facing each other.
Insert the waterproof material 1 with C in close contact in the direction of the back of the paper as shown in the figure to obtain the state shown in FIG. 4.
この挿入はヒレ状体1Cがいわば折り畳まれた
状態であるので容易に行なえる。 This insertion can be easily performed because the fin-like body 1C is in a folded state.
次いで、周囲に水が無い場合は、溝10内に注
水し、水溶解性物質2を溶解させれば、ヒレ状体
10C,10Cは第2図に示したように弾性的に
形状復帰し、開口部10Aを内側から塞ぐ状態と
なる。 Next, if there is no water around, water is poured into the groove 10 to dissolve the water-soluble substance 2, and the fin-like bodies 10C, 10C elastically return to their shape as shown in FIG. The opening 10A is closed from the inside.
しかる後第5図に示すように、溝10内にコン
クリート12を充填し、硬化させれば、両ケーソ
ン11間の水密が達成されるのである。 Thereafter, as shown in FIG. 5, by filling the groove 10 with concrete 12 and allowing it to harden, watertightness between the two caissons 11 is achieved.
なお、ヒレ状体1Cを水膨張性ゴムとした場合
は、第6図に示すように水溶解性物質2が溶解後
さらにヒレ状体1C自体も溝10内で膨張するた
め、水密性がより向上されて都合が良い。 In addition, when the fin-like body 1C is made of water-swellable rubber, the fin-like body 1C itself expands within the groove 10 after the water-soluble substance 2 is dissolved, as shown in FIG. It's good that it has been improved.
この考案は、以上説明したように、予め成形さ
れたケーソン等であつても、止水材1を溝10内
で後発的に拡大変形させるため、溝内側より確実
な水密が図られ、また、ケーソンなどの構造物及
び止水材1の両者は共に予め工場等で製造される
ので、形状精度の管理も容易であり、これら相俟
つて、きわめて良好な水密施工が可能となる実用
的効果を有する。
As explained above, in this invention, even if it is a pre-formed caisson etc., the water stop material 1 is later expanded and deformed within the groove 10, so that reliable watertightness is achieved from the inside of the groove, and Since both the caisson and other structures and the water-stopping material 1 are manufactured in advance at a factory, it is easy to control the shape accuracy, and together with this, the practical effect of making extremely watertight construction possible is achieved. have
第1図、第2図はこの考案の実施例の断面図、
第3図〜第6図はこの考案の実施例の作用説明
図、第7図及び第8図は従来例の説明断面図であ
る。
Figures 1 and 2 are cross-sectional views of embodiments of this invention;
FIGS. 3 to 6 are explanatory views of the operation of the embodiment of this invention, and FIGS. 7 and 8 are explanatory sectional views of the conventional example.
Claims (1)
る溝の奥方部に嵌合する膨大断面部及び、前記
開口部を通過する狭小断面部とを有し、前記膨
大断面部と狭小断面部の境界部分には、前記溝
の奥方部において、前記開口部を内側から覆い
得るヒレ状体が一体に延出され、かつ、該ヒレ
状体は、前記膨大断面部外周に沿つて強制的に
折曲げられ、水溶解性物質で密着されて成る、
全体がゴム状弾性体で成形されて成る止水材。 (2) ヒレ状体が水膨張性物質により成形されてい
る実用新案登録請求の範囲第1項記載の止水
材。[Claims for Utility Model Registration] (1) It has an enlarged cross-sectional part that fits into the deep part of the groove and has a cross-sectional shape that is larger in the inner part than the opening, and a narrow cross-sectional part that passes through the opening. , a fin-like body that can cover the opening from the inside is integrally extended at the boundary between the enlarged cross-section and the narrow cross-section in the deep part of the groove, and the fin-like body is connected to the enlarged cross-section. It is forcibly bent along the outer periphery of the cross section and adhered with a water-soluble substance.
A waterproof material made entirely of rubber-like elastic material. (2) The water stop material according to claim 1, wherein the fin-like body is formed of a water-swellable substance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8451786U JPH0426501Y2 (en) | 1986-06-02 | 1986-06-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8451786U JPH0426501Y2 (en) | 1986-06-02 | 1986-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62196227U JPS62196227U (en) | 1987-12-14 |
JPH0426501Y2 true JPH0426501Y2 (en) | 1992-06-25 |
Family
ID=30939091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8451786U Expired JPH0426501Y2 (en) | 1986-06-02 | 1986-06-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0426501Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5763966B2 (en) * | 2011-05-12 | 2015-08-12 | 日本トムソン株式会社 | Actuator for clean environment |
JP6647913B2 (en) * | 2016-02-26 | 2020-02-14 | 西武ポリマ化成株式会社 | Water blocking structure of joint material mounting groove |
-
1986
- 1986-06-02 JP JP8451786U patent/JPH0426501Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS62196227U (en) | 1987-12-14 |
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