JPH0447279Y2 - - Google Patents
Info
- Publication number
- JPH0447279Y2 JPH0447279Y2 JP1986124277U JP12427786U JPH0447279Y2 JP H0447279 Y2 JPH0447279 Y2 JP H0447279Y2 JP 1986124277 U JP1986124277 U JP 1986124277U JP 12427786 U JP12427786 U JP 12427786U JP H0447279 Y2 JPH0447279 Y2 JP H0447279Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- backfilling
- stopper
- plug body
- plug
- 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
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 239000011440 grout Substances 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- RNIHAPSVIGPAFF-UHFFFAOYSA-N Acrylamide-acrylic acid resin Chemical compound NC(=O)C=C.OC(=O)C=C RNIHAPSVIGPAFF-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、トンネル覆工用コンクリート又は金
属製セグメントの裏込め注入口に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a backfill injection port for concrete or metal segments for tunnel lining.
トンネル施工のシールド工法では、組立てたセ
グメントリングと地山との隙間をグラウトするた
めに、セグメントにグラウト材の裏込め用注入口
を設けている。
In the shield method for tunnel construction, an injection port for backfilling grout is provided in the segment in order to grout the gap between the assembled segment ring and the ground.
この注入口には、作業室内の気圧を保持するた
めと地下水の侵入を防ぐために閉鎖栓を設ける必
要があり、かかる閉鎖栓として底部外周にフラン
ジを設けた合成樹脂製有底筒体の外周にねじ部を
設けたものは既に周知である（実開昭51−82322
公報）。 This injection port must be equipped with a stopper in order to maintain the atmospheric pressure in the work room and prevent underground water from entering.The stopper is installed on the outer periphery of a synthetic resin bottomed cylinder with a flange on the outer periphery of the bottom. The one with a threaded part is already well known (Utility Model No. 51-82322)
Public bulletin).
閉鎖栓をこのようにねじ止め機能を有するもの
とし、ねじ部の螺合により止水を行なおうとして
も栓自体のゆるみ、その他で完全な止水効果が得
られないことがあるので、栓のフランジの外周に
合成ゴム等によるリング状パツキンを配設したも
のもある（特開昭53−132146号公報）。しかし、
前記パツキンは閉鎖栓を締付けた際に側方向に広
がり、変形してしまつて本来の止水機能を保持す
ることができないおそれがある。
Even if the stopper is designed to have a screw-fastening function in this way, and attempts are made to shut off water by screwing the threaded part together, the stopper itself may become loose or a complete water-stopping effect may not be obtained due to other reasons. There is also one in which a ring-shaped packing made of synthetic rubber or the like is arranged around the outer periphery of the flange (Japanese Unexamined Patent Publication No. 132146/1983). but,
When the closure plug is tightened, the gasket spreads laterally and becomes deformed, and there is a risk that it will not be able to maintain its original water-stopping function.
本考案の目的は前記従来例の不都合を解消し、
スリーブ先端の閉鎖栓のゆるみに関係なく、高い
密着性により完全な止水効果が得られ、またその
ためのセツトも簡単に行なえるトンネル覆工用セ
グメントの裏込め注入口を提供することにある。 The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a backfilling inlet for a tunnel lining segment, which can obtain a complete water-stopping effect due to high adhesion regardless of the loosening of a closure plug at the tip of a sleeve, and can be easily set for this purpose.
本考案は前記目的を達成するため、裏込め注入
口先端に、ねじ止め機能を有する合成樹脂製又は
金属製の閉鎖栓を着脱自在に取付けるセグメント
の裏込め注入口において、水膨潤性組成物により
成形したもので、外収にネジ面を形成し、下面に
回転用の凹部又は凸部による矩形係止部を設けた
栓体を前記注入口内の前記閉鎖栓の上部に螺入し
たことを要旨とするものである。
In order to achieve the above object, the present invention uses a water-swellable composition in the backfilling inlet of a segment in which a synthetic resin or metal stopper with a screw-fastening function is removably attached to the tip of the backfilling inlet. A molded plug body with a threaded surface formed on the outer housing and a rectangular locking part formed by a concave or convex part for rotation on the lower surface is screwed into the upper part of the closing plug in the injection port. That is.
本考案によれば、周知の金属製又は合成樹脂製
の閉鎖栓の他にこれとは別体としての栓体により
止水を行うものであり、該閉鎖栓のゆるみには全
く影響されない。
According to the present invention, in addition to the well-known stopper made of metal or synthetic resin, water is stopped by a separate stopper, and is not affected by loosening of the stopper.
また、前記栓体は上面に矩形係止部を設けた工
具を用いてスリーブ内の奥部に螺入することで簡
単にセツトできる。 Further, the plug body can be easily set by screwing it deep into the sleeve using a tool having a rectangular locking portion on the upper surface.
しかもこの栓体は、水膨潤効果で体積が増加し
外周ネジ面がスリーブ内周面にしつかりと密着す
るので高い水密性が得られる。 Furthermore, the volume of this plug body increases due to the water swelling effect, and the outer circumferential threaded surface tightly contacts the inner circumferential surface of the sleeve, thereby achieving high watertightness.
以下、図面について本考案の実施例を詳細に説
明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本考案のトンネル覆工用セグメントの
裏込め注入口の第１実施例を示す縦断側面図で、
図中１はトンネル覆工用のコンクリートセグメン
トを示し、このセグメント１にはスリーブ２によ
り裏込め注入口６を形成する。該スリーブ２の先
端内周面にはネジ面２ａを形成し、ここに金属又
は合成樹脂により一体成形した有底筒体で底部外
周にフランジ３ａを形成し、その上部の外周にネ
ジ部３ｂを設けた閉鎖栓３を外側から着脱自在に
螺合する。 FIG. 1 is a longitudinal side view showing a first embodiment of the backfilling inlet for tunnel lining segments of the present invention.
In the figure, reference numeral 1 indicates a concrete segment for tunnel lining, and a backfill injection port 6 is formed in this segment 1 by a sleeve 2. A threaded surface 2a is formed on the inner peripheral surface of the tip of the sleeve 2, a flange 3a is formed on the outer periphery of the bottom of a bottomed cylinder integrally molded from metal or synthetic resin, and a threaded portion 3b is formed on the outer periphery of the upper part. The provided closure plug 3 is screwed together from the outside in a detachable manner.
以上は従来と同様であるが、本考案はさらに第
２図に示すような外周にネジ面４ａを形成した水
膨潤性組成物による栓体４をスリーブ２内で前記
閉鎖栓３の上部に螺入した。 The above is the same as the conventional one, but in the present invention, a stopper 4 made of a water-swellable composition and having a threaded surface 4a formed on the outer periphery is screwed onto the upper part of the closure stopper 3 within the sleeve 2, as shown in FIG. I entered.
これら、スリーブ２のネジ面２ａ、閉鎖栓３の
ネジ部３ｂ、及び栓体４のネジ面４ａは本実施例
では30°の台形ネジのものとした。また、栓体４
を形成する水膨潤性組成物としては、膨潤性ポリ
ウレタン樹脂、あるいは膨潤性ポリビニルアルコ
ールのごとき、水膨潤性高分子物質を主材とし、
例えば液体ゴム等を混合された組成物、ポリエチ
レンオキシドの変性物、スチレン−無水マレイン
酸共重合体、ポリビニルピロリドン架橋物、アク
リル酸−アクリルアマイド共重合体架橋物、デン
プン−アクリロトリル共重合体の加水分解物、セ
ルロース誘導体の高分子物質などによる水膨潤性
高分子物質を主材とするものなどが採用し得る。 In this embodiment, the threaded surface 2a of the sleeve 2, the threaded portion 3b of the closure plug 3, and the threaded surface 4a of the plug body 4 have a trapezoidal thread of 30°. In addition, the plug body 4
The water-swellable composition forming the water-swelling composition is mainly composed of a water-swellable polymeric substance such as a swelling polyurethane resin or a swelling polyvinyl alcohol.
For example, compositions mixed with liquid rubber, modified products of polyethylene oxide, styrene-maleic anhydride copolymers, cross-linked polyvinylpyrrolidone products, cross-linked acrylic acid-acrylamide copolymers, and hydration of starch-acrylotrile copolymers. A material whose main material is a water-swellable polymeric material such as a decomposed product or a polymeric material of a cellulose derivative may be used.
さらに、該栓体４の下面には、閉鎖栓３の下面
と同じような矩形凸部の、若しくは逆の矩形凹部
による回転用の係止部４ｂを形成する。 Further, on the lower surface of the plug body 4, a locking portion 4b for rotation is formed by a rectangular convex portion similar to the lower surface of the closing plug 3, or a rectangular concave portion opposite to the lower surface.
このようにして閉鎖栓３を嵌める前に、第３図
に示すような上面に係止部４ｂに合致する矩形係
止部５ａを設けた工具５を用いて栓体４をスリー
ブ２内に奥部に螺入する。そして、スリーブ２の
その先端側に閉鎖栓３を螺合した。 Before fitting the closure plug 3 in this manner, the plug body 4 is pushed deep into the sleeve 2 using a tool 5 having a rectangular locking portion 5a on the upper surface that matches the locking portion 4b as shown in FIG. screw into the part. Then, a closure plug 3 was screwed onto the distal end side of the sleeve 2.
栓体４は時間の経過とともに、外水分と作用し
て膨潤し、その膨潤圧でネジ面同士が強固に密着
される。 The plug body 4 swells over time as it interacts with external moisture, and the swelling pressure causes the threaded surfaces to firmly adhere to each other.
第４図は本考案の第２実施例を示すもので、台
形ネジの代りにミリネジを形成した場合を示し、
セグメントがスチール等の場合に使用される。作
用効果は前記第１実施例と同様である。 FIG. 4 shows a second embodiment of the present invention, in which a metric thread is formed instead of a trapezoidal thread,
Used when the segment is made of steel, etc. The operation and effect are the same as in the first embodiment.
以上述べたように本考案のトンネル覆工用セグ
メントの裏込め注入口は、裏込め注入口先端に、
ねじ止め機能を有する合成樹脂製又は金属製の閉
鎖栓を着脱自在に取付けるセグメントの裏込め注
入口において、閉鎖栓のゆるみ等に関係なく密着
性に富んだ止水をなすことができ、しかもこの止
水は栓体の膨潤圧で効果的に行なわれる。
As mentioned above, the backfilling inlet of the tunnel lining segment of the present invention has a
At the backfill injection port of the segment where a synthetic resin or metal stopper with a screw-fastening function is removably attached, it is possible to achieve a highly adhesive water stop regardless of the looseness of the stopper. Water is effectively stopped by the swelling pressure of the stopper.
さらに、上面に矩形係止部を設けた工具を用い
てスリーブ内の奥部に螺入することで簡単かつ迅
速にセツトできるものである。 Furthermore, it can be easily and quickly set by screwing into the inner part of the sleeve using a tool having a rectangular locking portion on the upper surface.
第１図は本考案のトンネル覆工用セグメントの
裏込め注入口の第１実施例を示す縦断正面図、第
２図は本考案で使用する栓体の一部切欠いた正面
図、第３図は使用する工具の斜視図、第４図は本
考案の第２実施例を示す一部切欠いた正面図であ
る。
１……セグメント、２……スリーブ、２ａ……
ネジ面、３……閉鎖栓、３ａ……フランジ、３ｂ
……ネジ部、４……栓体、４ａ……ネジ面、４ｂ
……回転用の係止部、５……工具、５ａ……係止
部、６……裏込め注入口。
Fig. 1 is a longitudinal sectional front view showing a first embodiment of the backfilling inlet for a tunnel lining segment of the present invention, Fig. 2 is a partially cutaway front view of the plug body used in the present invention, and Fig. 3 4 is a perspective view of the tool used, and FIG. 4 is a partially cutaway front view showing a second embodiment of the present invention. 1...Segment, 2...Sleeve, 2a...
Threaded surface, 3... Closure plug, 3a... Flange, 3b
... Threaded part, 4 ... Plug body, 4a ... Threaded surface, 4b
... Locking part for rotation, 5... Tool, 5a... Locking part, 6... Backfill injection port.
Claims (1)
成樹脂製又は金属製の閉鎖栓を着脱自在に取付け
るセグメントの裏込め注入口において、水膨潤性
組成物により成形したもので、外周にネジ面を形
成し、下面に回転用の凹部又は凸部による矩形係
止部を設けた栓体を前記注入口内の前記閉鎖栓の
上部に螺入したことを特徴とするトンネル覆工用
セグメントの裏込め注入口。 A synthetic resin or metal stopper with a screw-fastening function is removably attached to the tip of the backfilling inlet, which is molded from a water-swellable composition and has a threaded surface on the outer periphery. A backfilling injection for a tunnel lining segment, characterized in that a plug body having a rectangular locking part formed by a concave part or a convex part for rotation on the lower surface is screwed into the upper part of the closing plug in the injection port. entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986124277U JPH0447279Y2 (en) | 1986-08-12 | 1986-08-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986124277U JPH0447279Y2 (en) | 1986-08-12 | 1986-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331200U JPS6331200U (en) | 1988-02-29 |
| JPH0447279Y2 true JPH0447279Y2 (en) | 1992-11-09 |
Family
ID=31016143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986124277U Expired JPH0447279Y2 (en) | 1986-08-12 | 1986-08-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447279Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6228853B2 (en) * | 2014-01-31 | 2017-11-08 | メトロ開発株式会社 | High water check valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120155U (en) * | 1984-07-10 | 1986-02-05 | 協和株式会社 | Drainage connection pipe |
-
1986
- 1986-08-12 JP JP1986124277U patent/JPH0447279Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120155U (en) * | 1984-07-10 | 1986-02-05 | 協和株式会社 | Drainage connection pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6331200U (en) | 1988-02-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1181776A (en) | Improvements in or relating to Pipe Joints | |
| JPH0258486B2 (en) | ||
| JPH0447279Y2 (en) | ||
| JPS6332974Y2 (en) | ||
| KR0127307Y1 (en) | Water-proof washer | |
| JPH0135114Y2 (en) | ||
| JPH0624478Y2 (en) | Water stop device for backfill material injection part in segment | |
| JPS6136636Y2 (en) | ||
| CN212926503U (en) | Protective structure | |
| JPH0649680Y2 (en) | Joint of shield segment | |
| JPH0330474Y2 (en) | ||
| JP2590835Y2 (en) | Pipe fittings | |
| JPH047430Y2 (en) | ||
| KR200264327Y1 (en) | Screw | |
| JPS5827186Y2 (en) | Connection between internally coated steel pipe and pipe fitting | |
| JPH0336587Y2 (en) | ||
| JPH0452308Y2 (en) | ||
| JPH053813Y2 (en) | ||
| JP3106381B2 (en) | Pipe end corrosion protection structure | |
| GB1530205A (en) | Pipe coupling | |
| JP3002545U (en) | Tunnel support rebar structure | |
| JPS6243018Y2 (en) | ||
| JPH073592Y2 (en) | Waterproof socket | |
| JPH0410466Y2 (en) | ||
| JPS5925912Y2 (en) | Grout injection jig |