JPH11107691A - Joint structure of concrete structural member treated with corrosion preventive coating - Google Patents
Joint structure of concrete structural member treated with corrosion preventive coatingInfo
- Publication number
- JPH11107691A JPH11107691A JP9268773A JP26877397A JPH11107691A JP H11107691 A JPH11107691 A JP H11107691A JP 9268773 A JP9268773 A JP 9268773A JP 26877397 A JP26877397 A JP 26877397A JP H11107691 A JPH11107691 A JP H11107691A
- Authority
- JP
- Japan
- Prior art keywords
- anticorrosion
- joint
- insertion groove
- concrete structural
- section
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6813—Compressable seals of hollow form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B2001/6818—Joints with swellable parts
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防食被覆コンクリ
ート構造部材の目地部構造に関し、特に、表面に防食被
覆を施した、セグメント等のプレキャスト製のコンクリ
ート構造部材を複数連設一体化する際に採用される目地
部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of an anticorrosion-coated concrete structural member, and more particularly, to a case where a plurality of precast concrete structural members such as segments having an anticorrosion coating on the surface are integrally connected. Regarding the joint structure adopted.
【０００２】[0002]
【従来の技術】例えば下水道などの腐食性の水に接する
コンクリート構造物の防食方法としては、コンクリート
表面に例えばエポキシ樹脂等の樹脂材料を塗布したり、
コンクリート構造物を構成するセグメント等のプレキャ
スト構造部材の製造時に、コンクリートの表面部分の型
枠に防食性の樹脂パネルや樹脂シートを取付けてコンク
リートを打設し、あるいは打設したコンクリートの硬化
後に樹脂材料を塗布したりすることによってコンクリー
ト表面を防食被覆する方法が採用されている。2. Description of the Related Art As a method for preventing corrosion of concrete structures that come into contact with corrosive water such as sewers, for example, a resin material such as epoxy resin is applied to the concrete surface.
At the time of manufacturing precast structural members such as segments that make up a concrete structure, a concrete panel with a corrosion-resistant resin panel or resin sheet is attached to the formwork on the concrete surface, and the concrete is poured. A method has been adopted in which a concrete surface is subjected to anticorrosion coating by applying a material or the like.
【０００３】そして、コンクリートセグメント等のプレ
キャスト構造部材の製造時に予めこれらの表面の防食被
覆を行った場合、かかる防食被覆されたコンクリート構
造部材を複数連設一体化してシールドトンネルなどのコ
ンクリート構造物が構成されることになるが、隣接する
コンクリート構造部材の接合部にもまた現場において防
食被覆を施す必要が生じることになる。[0003] When a surface of a precast structural member such as a concrete segment or the like is preliminarily subjected to anticorrosion coating, a plurality of such anticorrosion-coated concrete structural members are connected and integrated to form a concrete structure such as a shield tunnel. However, the joints between adjacent concrete structural members will also need to be provided with an anticorrosion coating on site.
【０００４】そしてかかる接合部の防食方法としては、
従来より、セグメント等のコンクリート構造部材を組立
てた後、目地部に樹脂材料を充填する方法や、合成樹脂
製の防食被覆材同士を溶接により一体化する方法などが
採用されていた。[0004] As a method of preventing corrosion of such joints,
Conventionally, a method of assembling a concrete structural member such as a segment and then filling the joint portion with a resin material, a method of integrating synthetic resin anticorrosion coating materials by welding, and the like have been adopted.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、かかる
従来の防食被覆コンクリート構造部材の接合部の防食方
法によれば、樹脂材料を目地部に充填すなわちコーキン
グする方法では、コンクリート構造部材の接合部分の清
掃や乾燥に相当の時間を必要とし、また、樹脂材料が硬
化するまでに長期の養生期間を必要とするとともに、コ
ーキング作業に多くの手間を必要とするという課題があ
った。However, according to such a conventional method for preventing corrosion of a joint of a corrosion-resistant coated concrete structural member, the method of filling or coking a joint with a resin material requires cleaning of the joint of the concrete structural member. There is a problem that a considerable amount of time is required for drying and drying, a long curing period is required until the resin material is hardened, and much labor is required for the caulking operation.
【０００６】また、防食被覆材同士を溶接する方法によ
れば、施工現場に地下水などの水分が存在すると溶接能
率が低下するとともに、必要な電源の確保などその準備
や施工に多くの手間を必要とすることになるという課題
があった。According to the method of welding anticorrosion coating materials to each other, when moisture such as groundwater is present at a construction site, the welding efficiency is reduced, and a lot of labor is required for preparation and construction such as securing a necessary power source. There was a problem that would be.
【０００７】そこで、この発明は、このような従来の課
題に鑑みてなされたもので、多くの時間や手間を必要と
することなく、防食被覆を施したコンクリート構造部材
の接合部を容易に防食被覆することのできる、防食被覆
コンクリート構造部材の目地部構造を提供することを目
的とするものである。Accordingly, the present invention has been made in view of such a conventional problem, and the joint of a concrete structural member provided with an anticorrosion coating can be easily subjected to anticorrosion without requiring much time and labor. An object of the present invention is to provide a joint structure of an anticorrosion-coated concrete structural member that can be coated.
【０００８】[0008]
【課題を解決するための手段】この発明は、かかる目的
を達成するためになされたもので、その要旨は、表面に
防食被覆を施したコンクリート構造部材を複数連設一体
化する際に、これの目地部に設けられる目地部構造であ
って、隣接するコンクリート構造部材の各端面に形成さ
れた切欠き溝を対向配置することにより前記目地部に沿
って形成される、首部から肩部を介して拡幅するボトル
状の断面形状を有する挿入溝と、該挿入溝に挿入配置さ
れる、首部と、該首部の一方に肩部を介して連接する拡
幅部と、前記首部の他方に連接する蓋部とからなる断面
形状を有する帯状弾性防食挿入部材とからなることを特
徴とする防食被覆コンクリート構造部材の目地部構造に
ある。SUMMARY OF THE INVENTION The present invention has been made to achieve such an object. The gist of the present invention is to provide a method for integrating and integrating a plurality of concrete structural members having anticorrosion coating on the surface. The joint structure provided in the joint portion of the above, the notch groove formed in each end face of the adjacent concrete structural member is disposed opposite to each other, formed along the joint portion, from the neck to the shoulder An insertion groove having a bottle-like cross-sectional shape that widens and widens, a neck portion inserted into the insertion groove, a widening portion connected to one of the neck portions via a shoulder portion, and a lid connected to the other of the neck portion And a band-shaped elastic anticorrosion insert member having a cross-sectional shape consisting of: a joint portion of the anticorrosion-coated concrete structural member.
【０００９】また、この発明の目地部構造は、前記帯状
弾性防食挿入部材の首部の側面に水膨潤性ゴムを取り付
けることが好ましい。Further, in the joint structure according to the present invention, it is preferable that a water-swellable rubber is attached to a side surface of a neck portion of the belt-shaped elastic anticorrosion insertion member.
【００１０】そして、この発明の目地部構造によれば、
隣接するコンクリート構造部材を、その端面同士を当接
させて例えばボルト接合などにより接続固定すれば、予
め各コンクリート構造部材の端面所定位置に形成された
切欠き溝が対向配置されて、首部から肩部を介して拡幅
するボトル状の断面形状を有する挿入溝が、コンクリー
ト構造部材の接合部の表面にその首部を開口させた状態
で形成されることになる。According to the joint structure of the present invention,
When adjacent concrete structural members are connected and fixed by, for example, bolting or the like with their end surfaces abutting, notch grooves formed in advance at predetermined positions on the end surfaces of the concrete structural members are arranged to face each other, and the shoulders from the neck to the shoulder are formed. An insertion groove having a bottle-like cross-sectional shape that widens through the portion is formed on the surface of the joint of the concrete structural member with its neck opened.
【００１１】そして、このように形成された挿入溝に対
して、帯状弾性防食挿入部材を、その拡幅部を挿入溝の
首部の開口に向けて配置するとともに、例えばこれをた
たき込むようにして挿入溝の内部に押し込めば、帯状弾
性防食挿入部材の拡幅部は、その弾性により収縮変形し
て挿入溝の首部を通過し、肩部より深い位置において復
元して挿入溝の拡幅部に配置されるとともに、帯状可撓
性防食挿入部材の蓋部は、接合部分の表面の目地部すな
わち挿入溝の開口を覆うようにして当該表面に強固に密
着配置されることになる。The band-shaped elastic anticorrosive insertion member is arranged in the insertion groove formed as described above with its widened portion facing the opening of the neck of the insertion groove, and for example, the insertion groove is beaten. If it is pushed into the inside, the widened portion of the band-shaped elastic anticorrosive insertion member contracts and deforms due to its elasticity, passes through the neck of the insertion groove, is restored at a position deeper than the shoulder, and is arranged in the widened portion of the insertion groove. The lid portion of the strip-shaped flexible anticorrosion insert member is firmly attached to the joint so as to cover the joint on the surface of the joint, that is, the opening of the insertion groove.
【００１２】すなわち、この発明の防食被覆コンクリー
ト構造部材の目地部構造によれば、隣接するコンクリー
ト構造部材の接合部分に形成された目地部としての挿入
溝に、帯状弾性防食挿入部材を押し込むだけの作業によ
り、止水性、及び防食性に富んだ目地部を容易に得るこ
とができる。That is, according to the joint structure of the anticorrosion-coated concrete structural member of the present invention, the strip-shaped elastic anticorrosion insert member is simply pushed into the insertion groove formed at the joint portion of the adjacent concrete structural member. By the operation, a joint having high waterproofness and anticorrosion properties can be easily obtained.
【００１３】また、前記帯状弾性防食挿入部材の首部の
側面に水膨潤性ゴムを取り付けておけば、これが膨潤す
ることにより挿入溝の首部と帯状可撓性防食挿入部材の
首部との間の隙間を充填して、より確実な止水性を付与
することが可能になる。Further, if a water-swellable rubber is attached to the side surface of the neck portion of the band-shaped elastic anticorrosion insert member, the gap between the neck portion of the insertion groove and the neck portion of the strip-shaped flexible anticorrosion insert member is swollen. , It is possible to impart more reliable water stoppage.
【００１４】[0014]
【発明の実施の形態】以下、この発明の好ましい実施形
態を添付図面を参照して詳細に説明する。この実施形態
の防食被覆コンクリート構造部材の目地部構造は、図１
（ａ）及び（ｂ）に示すようなシールドトンネル５０の
覆工体５１を構成するコンクリート構造部材としてのコ
ンクリートセグメント１０の接合部１２の目地部１３に
設けられるものである。Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The joint structure of the anticorrosion-coated concrete structural member of this embodiment is shown in FIG.
It is provided at a joint 13 of a joint 12 of a concrete segment 10 as a concrete structural member constituting a lining body 51 of a shield tunnel 50 as shown in FIGS.
【００１５】また、この実施形態によれば、シールドト
ンネル５０は下水道用のトンネルであって腐食性の水に
接するものであるため、各セグメント１０の内周面を、
これの製造時に予め防食性の被覆膜２３によって覆うと
ともに（図２参照）、複数のセグメント１０を連接一体
化して覆工体５１を形成する際に、隣接するセグメント
１０間の接合部１２にも高い防食性、及び止水性を付与
するために、この発明の防食被覆コンクリート構造部材
の目地部構造を設けるものである。According to this embodiment, since the shield tunnel 50 is a sewer tunnel and is in contact with corrosive water, the inner peripheral surface of each segment 10 is
At the time of manufacturing, it is previously covered with the anticorrosive coating film 23 (see FIG. 2), and when the plurality of segments 10 are connected and integrated to form the lining body 51, the joints 12 between the adjacent segments 10 are formed. The joint structure of the anticorrosion-coated concrete structural member of the present invention is provided in order to impart high corrosion resistance and water stoppage.
【００１６】すなわち、この実施形態の目地部構造１１
は、図２に示すように、隣接するセグメント１０間の接
合部１２の目地部１３に設けられるものであって、各セ
グメント１０の端面に形成された切欠き溝１４を対向配
置することにより目地部１３に沿って形成される、首部
１５から肩部１６を介して拡幅するボトル状の断面形状
を有する挿入溝１７と、この挿入溝１７に挿入配置され
る、首部１８と、この首部１８の一方に肩部１９を介し
て連接する拡幅部２０と、首部１８の他方に連接する蓋
部２１とからなる断面形状を有する防食挿入部材２２と
によって構成されている。That is, the joint structure 11 of this embodiment
As shown in FIG. 2, the joints are provided at joints 13 of the joints 12 between the adjacent segments 10, and joints are formed by arranging notch grooves 14 formed on the end faces of the respective segments 10 so as to face each other. An insertion groove 17 formed along the portion 13 and having a bottle-like cross-sectional shape that widens from a neck portion 15 through a shoulder portion 16, a neck portion 18 inserted into the insertion groove 17, and a neck portion 18. The anticorrosion insertion member 22 has a cross-sectional shape composed of a widened portion 20 connected to one side via a shoulder portion 19 and a lid portion 21 connected to the other side of the neck portion 18.
【００１７】ここで、コンクリートセグメント１０は、
予め工場等において製作型枠内にコンクリートを打設硬
化させて製作される矩形円弧状のレキャストコンクリー
ト製のもので、セグメント１０の内周面側に配置される
製作型枠の表面に被覆膜２３を敷設配置した後にコンク
リートを打設することにより、各セグメント１０の内周
面に容易に被覆膜２３を貼着配置することが可能であ
る。Here, the concrete segment 10
It is made of cast concrete in the form of a rectangular arc, which is produced by casting concrete in a production formwork and hardening it in a factory or the like in advance, and covers the surface of the production formwork arranged on the inner peripheral side of the segment 10. By laying concrete after laying and arranging the membrane 23, it is possible to easily attach and arrange the coating membrane 23 on the inner peripheral surface of each segment 10.
【００１８】また、被覆膜２３は、防食性に富んだ、ポ
リエチレン、ポリプロピレン等の樹脂材料からなるシー
ト部材によって形成されるもので、例えばこれの裏面に
多数の突起を有し、これをアンカーとしてセグメント１
０の内周面のコンクリート中に埋設することにより、当
該内周面に被覆膜２３が強固に密着固定されることにな
る。The coating film 23 is formed of a sheet member made of a resin material such as polyethylene or polypropylene which has a high anticorrosion property. As segment 1
By embedding in the concrete of the inner peripheral surface of No. 0, the coating film 23 is firmly adhered and fixed to the inner peripheral surface.
【００１９】一方、セグメント１０の各端面には、図３
に拡大して示すように、各セグメント１０の周方向に沿
って延長する切欠き溝１４が設けられているとともに、
各セグメント１０の端部内側の適宜箇所には、隣接する
セグメント１０を締結固定する際に使用するボルトボッ
クスなどが、一般のセグメントと同様に設けられてい
る。On the other hand, each end face of the segment 10 is
As shown in the enlarged view, a notch groove 14 extending along the circumferential direction of each segment 10 is provided,
At an appropriate position inside the end of each segment 10, a bolt box or the like used for fastening and fixing the adjacent segment 10 is provided similarly to a general segment.
【００２０】ここで、切欠き溝１４は、セグメント１０
の製作時に箱抜き等を施して形成されるもので、斜面部
分２５を挟んでセグメント１０の内側に位置する切欠き
深さの小さい第一段部２６と、斜面部分２５を挟んでセ
グメント１０の外側に位置する切欠き深さの大きい第二
段部２４とからなり、隣接するセグメント１０の端面同
士を当接させてボルト接合などにより接続固定すること
により、各セグメント１０の切欠き溝１４が対向配置さ
れて、首部１５から肩部１６を介して拡幅するボトル状
の断面形状を有する挿入溝１７が、セグメント１０の接
合部の表面にその首部１５を開口させた状態で形成され
ることになる。Here, the notch groove 14 is
The first step 26 having a small notch depth located inside the segment 10 with the slope 25 interposed therebetween and the segment 10 with the notch depth sandwiched between the segment 10 with the slope 25 interposed therebetween. The notch groove 14 of each segment 10 is constituted by a second step portion 24 having a large notch depth located on the outside, and abutting the end faces of the adjacent segments 10 and connecting and fixing them by bolting or the like. An insertion groove 17 having a bottle-like cross-sectional shape that is arranged to face and widens from the neck portion 15 via the shoulder portion 16 is formed in a state where the neck portion 15 is opened on the surface of the joint portion of the segment 10. Become.
【００２１】なお、隣接するセグメント１０の間に例え
ば止水用のガスケット２７などを挟んでこれらを接続固
定すれば、ガスケット２７を幅止め部材として挿入溝１
７の首部１５が形成されることになるので、切欠き溝１
４を形成する際に、第一段部２６を必ずしも設ける必要
はない。また、第二段部２４の内面には、ギザギザの突
起２８を設けておき、これによって、挿入溝１７に挿入
された防食挿入部材２２をさらに抜けにくくすることが
できる。If, for example, a gasket 27 for stopping water is sandwiched between the adjacent segments 10 and they are connected and fixed, the gasket 27 can be used as a width stopper and the insertion groove 1 can be used.
7 is formed, the notch groove 1 is formed.
It is not necessary to provide the first step portion 26 when forming the fourth portion. In addition, a jagged projection 28 is provided on the inner surface of the second step portion 24, so that the anticorrosion insertion member 22 inserted into the insertion groove 17 can be made more difficult to come off.
【００２２】そして、隣接するセグメント１０の接続部
に形成された目地部としての挿入溝１７に挿入配置され
るこの実施形態の防食挿入部材２２は、図４に示すよう
に、例えば高密度ポリエチレン、ポリプロピレン等の樹
脂材料からなる、防食性に富むとともに弾性を有する帯
状の部材であって、上述のように、首部１８と、この首
部１８の一方に肩部１９を介して連接する拡幅部２０
と、首部１８の他方に連接する蓋部２１とからなり、首
部１８、及び肩部１９を介した拡幅部２０の断面形状
は、挿入溝１７の断面形状と略合致する形状を備えてい
るとともに、拡幅部２０の下端部分には、これを挿入溝
１７の首部１５の開口から挿入溝１７内に打ち込みやす
いように、先鋭部２９が形成されている。As shown in FIG. 4, the anticorrosion insertion member 22 of this embodiment, which is inserted into the insertion groove 17 as a joint formed at the connection portion of the adjacent segments 10, is made of, for example, high-density polyethylene. A strip-shaped member made of a resin material such as polypropylene, which is rich in anticorrosion and has elasticity. As described above, the widened portion 20 is connected to the neck 18 via one of the shoulders 19 via the shoulder 19.
And a lid portion 21 connected to the other of the neck portion 18. The cross-sectional shape of the widened portion 20 via the neck portion 18 and the shoulder portion 19 has a shape substantially matching the cross-sectional shape of the insertion groove 17. A sharpened portion 29 is formed at the lower end of the widened portion 20 so that it can be easily driven into the insertion groove 17 through the opening of the neck portion 15 of the insertion groove 17.
【００２３】また、防食挿入部材２２の首部１８の側面
には、水膨潤性のゴム３０が取り付けられており、さら
に防食挿入部材２２の拡幅部２０の側面はギザギザの凹
凸面となるように加工されている。A water swellable rubber 30 is attached to the side surface of the neck portion 18 of the anticorrosion insertion member 22, and the side surface of the widened portion 20 of the anticorrosion insertion member 22 is processed so as to have a jagged uneven surface. Have been.
【００２４】そして、このような構成を有するこの実施
形態の目地部構造１１によれば、隣接するセグメント１
０を接続固定して形成された上述の挿入溝１７に対し、
防食挿入部材２２を、その拡幅部２０の先鋭部２９を挿
入溝１７の首部１５の開口に向けて配置するとともに、
挿入溝１７の内部に向けてたたき込めば、この防食挿入
部材２２は、その弾性により挿入溝１７の内部に容易に
押し込まれた後、復元して挿入溝１７の拡幅部３１を充
填するとともに、防食挿入部材２２の蓋部２１は、挿入
溝１７の開口を覆うようにして接合部１２の表面に強固
に密着配置されることになる（図２参照）。According to the joint structure 11 of this embodiment having such a configuration, the adjacent segments 1
0 to the above-described insertion groove 17 formed by connecting and fixing
The anticorrosion insertion member 22 is disposed with the sharpened portion 29 of the widened portion 20 facing the opening of the neck portion 15 of the insertion groove 17,
When the anticorrosion insertion member 22 is pushed toward the inside of the insertion groove 17, it is easily pushed into the inside of the insertion groove 17 by its elasticity, and then is restored to fill the widened portion 31 of the insertion groove 17. The lid portion 21 of the anticorrosion insertion member 22 is firmly attached to the surface of the joint portion 12 so as to cover the opening of the insertion groove 17 (see FIG. 2).
【００２５】すなわち、この実施形態によれば、隣接す
るコンクリートセグメント１０の接合部１２に形成され
た目地部１３としての挿入溝１７に、防食挿入部材２２
をたたき込むだけの作業により、止水性、及び防食性に
富んだ目地部構造１１を容易に得ることができる。That is, according to this embodiment, the anticorrosion insertion member 22 is inserted into the insertion groove 17 as the joint 13 formed at the joint 12 of the adjacent concrete segment 10.
The joint structure 11 having a high waterproof property and a good anti-corrosion property can be easily obtained only by the operation of knocking the joint.
【００２６】また、防食挿入部材２２の首部１８の側面
に取り付けられた水膨潤性のゴム３０が膨潤することに
より、挿入溝１７の首部１５と防食挿入部材２２の首部
１８との間の隙間を充填して、より確実な止水性を付与
することが可能になるとともに、挿入溝１７の拡幅部３
１のギザギザの内周面と、防食挿入部材２２の拡幅部２
０のギザギザの外壁面とが接触することにより、防食挿
入部材２２が挿入溝１７から抜け出すのをより確実に防
止することができる。The water swellable rubber 30 attached to the side surface of the neck portion 18 of the anticorrosion insertion member 22 swells, thereby forming a gap between the neck portion 15 of the insertion groove 17 and the neck portion 18 of the anticorrosion insertion member 22. It is possible to provide more reliable water stoppage by filling, and the widened portion 3 of the insertion groove 17 is provided.
1 jagged inner peripheral surface and widened portion 2 of anticorrosion insertion member 22
The contact with the outer wall surface of the jagged portions 0 can more reliably prevent the anticorrosion insertion member 22 from coming out of the insertion groove 17.
【００２７】なお、この発明は、上記実施形態の実施の
態様に限定されるものではなく、各請求項に記載された
構成の範囲内において種々に変更して採用することがで
きる。例えば、防食挿入部材２２の首部１８の側面に取
り付けられた水膨潤性のゴム３０や、挿入溝１７の拡幅
部の内周面あるいは防食挿入部材２２の拡幅部２０の外
周面に形成されるギザギザは必ずしも設ける必要はな
い。The present invention is not limited to the embodiments of the above-described embodiments, but can be variously modified and adopted within the scope of the configuration described in each claim. For example, a water-swellable rubber 30 attached to the side surface of the neck portion 18 of the anticorrosion insertion member 22, or a jagged portion formed on the inner peripheral surface of the widened portion of the insertion groove 17 or the outer peripheral surface of the widened portion 20 of the anticorrosion insert member 22. Need not necessarily be provided.
【００２８】また、この発明は、シールドトンネル５０
の覆工体５１を構成するコンクリートセグメント１０に
限定されることなく、表面に防食被覆が施された、その
他の各種のプレキャスト製のコンクリート構造部材の接
合部にも採用することができる。The present invention also provides a shield tunnel 50
The present invention is not limited to the concrete segment 10 constituting the lining body 51, but can be adopted also as a joint portion of various other precast concrete structural members whose surfaces are provided with anticorrosion coating.
【００２９】[0029]
【発明の効果】以上詳細に説明したように、この発明の
防食被覆コンクリート構造部材の目地部構造によれば、
隣接するコンクリート構造部材の各端面に形成された切
欠き溝を対向配置することにより目地部に沿って形成さ
れる、首部から肩部を介して拡幅するボトル状の断面形
状を有する挿入溝と、この挿入溝に挿入配置される、首
部と、首部の一方に肩部を介して連接する拡幅部と、首
部の他方に連接する蓋部とからなる断面形状を有する帯
状弾性防食挿入部材とからなるので、この帯状弾性防食
挿入部材を挿入溝に押し込むだけの作業によって、多く
の時間や手間を必要とすることなく、防食被覆を施した
コンクリート構造部材の接合部を容易に防食被覆するこ
とができる。As described in detail above, according to the joint structure of the anticorrosion-coated concrete structural member of the present invention,
An insertion groove having a bottle-like cross-sectional shape that widens from a neck portion through a shoulder portion, which is formed along the joint portion by arranging notch grooves formed on each end face of the adjacent concrete structural member to face each other, A strip-shaped elastic anticorrosion insert member having a cross-sectional shape consisting of a neck, a widened portion connected to one of the necks via a shoulder, and a lid connected to the other of the necks, which is inserted and arranged in the insertion groove. Therefore, by simply pressing the band-shaped elastic anticorrosion insert member into the insertion groove, the joint portion of the anticorrosion-coated concrete structural member can be easily subjected to anticorrosion coating without requiring much time and labor. .
【図１】（ａ）及び（ｂ）は、この発明の一実施形態に
係る目地部構造を採用したシールドトンネルのセグメン
ト覆工体を説明する、（ａ）は正面図、（ｂ）は（ａ）
をＡ−Ａから見た内面図である。1 (a) and 1 (b) illustrate a segment lining body of a shield tunnel employing an joint structure according to an embodiment of the present invention, (a) is a front view, and (b) is ( a)
FIG. 2 is an inner view as viewed from AA.
【図２】この発明の一実施形態に係る目地部構造を示す
断面図である。FIG. 2 is a cross-sectional view showing a joint structure according to an embodiment of the present invention.
【図３】この発明の一実施形態に係る目地部構造を構成
する挿入溝を説明する拡大断面図である。FIG. 3 is an enlarged cross-sectional view illustrating an insertion groove constituting the joint structure according to the embodiment of the present invention.
【図４】この発明の一実施形態に係る目地部構造を構成
する防食挿入部材を説明する拡大断面図である。FIG. 4 is an enlarged cross-sectional view illustrating a corrosion-preventive insertion member constituting a joint structure according to an embodiment of the present invention.
１０ セグメント（コンクリート構造部材） １１ 目地部構造 １２ 接合部 １３ 目地部 １４ 切欠き溝 １５ 挿入溝の首部 １６ 挿入溝の肩部 １７ 挿入溝 １８ 防食挿入部材の首部 １９ 防食挿入部材の肩部 ２０ 防食挿入部材の拡幅部 ２１ 防食挿入部材の蓋部 ２２ 防食挿入部材（締結部材） ２３ 被覆膜 ２５ 斜面部分（切欠き溝） ２６ 第一段部（切欠き溝） ２７ 第二段部（切欠き溝） ３０ 水膨潤性ゴム ３１ 挿入溝の拡幅部 DESCRIPTION OF SYMBOLS 10 Segment (concrete structural member) 11 Joint structure 12 Joint part 13 Joint part 14 Notch groove 15 Neck part of insertion groove 16 Shoulder part of insertion groove 17 Insertion groove 18 Neck part of anticorrosion insertion member 19 Shoulder part of anticorrosion insertion member 20 Anticorrosion Widened portion of insertion member 21 Lid of anticorrosion insertion member 22 Anticorrosion insertion member (fastening member) 23 Coating film 25 Slope (notch groove) 26 First step (notch groove) 27 Second step (notch) Groove) 30 Water-swellable rubber 31 Widening part of insertion groove
Claims (2)
造部材を複数連設一体化する際に、これの目地部に設け
られる目地部構造であって、隣接するコンクリート構造
部材の各端面に形成された切欠き溝を対向配置すること
により前記目地部に沿って形成される、首部から肩部を
介して拡幅するボトル状の断面形状を有する挿入溝と、
該挿入溝に挿入配置される、首部と、該首部の一方に肩
部を介して連接する拡幅部と、前記首部の他方に連接す
る蓋部とからなる断面形状を有する帯状弾性防食挿入部
材とからなることを特徴とする防食被覆コンクリート構
造部材の目地部構造。A joint structure provided at a joint portion of a plurality of concrete structural members whose surfaces are provided with anticorrosion coating, the joint structure being formed on each end face of an adjacent concrete structural member. An insertion groove having a bottle-like cross-sectional shape that is formed along the joint portion by arranging the notch grooves facing each other and widens from a neck portion through a shoulder portion;
A belt-shaped elastic anticorrosion insertion member having a cross-section composed of a neck, a widened portion connected to one of the necks via a shoulder, and a lid connected to the other of the necks, which are inserted and arranged in the insertion groove; A joint structure of an anticorrosion-coated concrete structural member, characterized by comprising:
には水膨潤性ゴムが取り付けられていることを特徴とす
る請求項１に記載の防食被覆コンクリート構造部材の目
地部構造。2. The joint structure of an anticorrosion-coated concrete structural member according to claim 1, wherein a water-swellable rubber is attached to a side surface of a neck portion of the strip-shaped elastic anticorrosion insert member.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26877397A JP3951381B2 (en) | 1997-10-01 | 1997-10-01 | Joint structure of anticorrosion coated concrete structural member |
| KR1019980016301A KR19990036482A (en) | 1997-10-01 | 1998-05-07 | Mesh structure of anticorrosive concrete structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26877397A JP3951381B2 (en) | 1997-10-01 | 1997-10-01 | Joint structure of anticorrosion coated concrete structural member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11107691A true JPH11107691A (en) | 1999-04-20 |
| JP3951381B2 JP3951381B2 (en) | 2007-08-01 |
Family
ID=17463107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26877397A Expired - Fee Related JP3951381B2 (en) | 1997-10-01 | 1997-10-01 | Joint structure of anticorrosion coated concrete structural member |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3951381B2 (en) |
| KR (1) | KR19990036482A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000145394A (en) * | 1998-11-13 | 2000-05-26 | Ohbayashi Corp | Plastic sheet-adhered segment and its joint processing method |
| JP2010209555A (en) * | 2009-03-09 | 2010-09-24 | Ohbayashi Corp | Packing, construction method for laying embedded form, and tunnel constructed by the construction method |
| KR20200074508A (en) * | 2018-12-17 | 2020-06-25 | 유한회사 지엘산업 | Reinforced structure of water conveyance tunnel |
| CN113944240A (en) * | 2021-09-24 | 2022-01-18 | 上海宝冶集团有限公司 | Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof |
-
1997
- 1997-10-01 JP JP26877397A patent/JP3951381B2/en not_active Expired - Fee Related
-
1998
- 1998-05-07 KR KR1019980016301A patent/KR19990036482A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000145394A (en) * | 1998-11-13 | 2000-05-26 | Ohbayashi Corp | Plastic sheet-adhered segment and its joint processing method |
| JP2010209555A (en) * | 2009-03-09 | 2010-09-24 | Ohbayashi Corp | Packing, construction method for laying embedded form, and tunnel constructed by the construction method |
| KR20200074508A (en) * | 2018-12-17 | 2020-06-25 | 유한회사 지엘산업 | Reinforced structure of water conveyance tunnel |
| CN113944240A (en) * | 2021-09-24 | 2022-01-18 | 上海宝冶集团有限公司 | Fixed prefabricated structure for sealing basement outer wall post-cast strip in advance and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990036482A (en) | 1999-05-25 |
| JP3951381B2 (en) | 2007-08-01 |
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