JP2006249721A - Double flexible joint mounting structure - Google Patents

Double flexible joint mounting structure Download PDF

Info

Publication number
JP2006249721A
JP2006249721A JP2005065514A JP2005065514A JP2006249721A JP 2006249721 A JP2006249721 A JP 2006249721A JP 2005065514 A JP2005065514 A JP 2005065514A JP 2005065514 A JP2005065514 A JP 2005065514A JP 2006249721 A JP2006249721 A JP 2006249721A
Authority
JP
Japan
Prior art keywords
flexible joint
peripheral side
elastic rubber
double
mounting structure
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
Application number
JP2005065514A
Other languages
Japanese (ja)
Other versions
JP4496994B2 (en
Inventor
Keiichi Hasegawa
恵一 長谷川
Wataru Ota
亘 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP2005065514A priority Critical patent/JP4496994B2/en
Publication of JP2006249721A publication Critical patent/JP2006249721A/en
Application granted granted Critical
Publication of JP4496994B2 publication Critical patent/JP4496994B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Sewage (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Joints Allowing Movement (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double flexible joint mounting structure which ensures the flexibility of an external flexible joint embedded inside underground structures, and functions to connect the underground structures with good flexibility and watertightness. <P>SOLUTION: The double flexible joint mounting structure is formed of an internal flexible joint 1a which has an expandable rubber 2 circumferentially arranged astride internal surfaces 12a of opposed ends 12 of the respective underground structures to be connected together, and the external flexible joint 1b which is arranged on an external side of the internal flexible joint 1a and has the expandable rubber 2. The double flexible joint mounting structure functions to doubly connect the opposed ends 12, 12 together by the internal and external flexible joints. The external flexible joint 1b is provided with a protective filler portion 6 which is arranged on an internal side of the expandable rubber 2, for deformably covering the expandable rubber 2, a hollow portion 7 which is secured on an external side of the same, and a flexible cover material 9 which covers the protective filler portion 6. Therefore the external flexible joint 1b is embedded in the underground structures in a manner being isolated from concrete. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、二重可撓継手の取付構造に関し、さらに詳しくは、地下構造体の対向端部どうしを二重に連結する内周側および外周側可撓継手のうち、地下構造体の内部に埋設される外周側可撓継手の可撓性を確保して、可撓性および水密性を良好にして地下構造体を連結できる二重可撓継手の取付構造に関するものである。 The present invention relates to a mounting structure for a double flexible joint, and more specifically, an inner peripheral side and an outer peripheral side flexible joint that double-connects opposing end portions of an underground structure, inside the underground structure. The present invention relates to a mounting structure for a double flexible joint capable of securing the flexibility of an embedded outer peripheral side flexible joint and connecting the underground structure with good flexibility and water tightness.

一般的に通信ケーブル、ガス管、水道管等を敷設する共同溝、地下道等の地下構造体は、連結される対向端部どうしが対向端部の周方向に沿って内周面に配設される可撓継手で連結され、地下構造体に作用する温度変化による伸縮、地盤沈下、地震等によって生じる変位を吸収可能とするとともに、水密性をもって連結する構造となっている。   In general, underground structures such as joint grooves and underground passages for laying communication cables, gas pipes, water pipes, etc. are arranged on the inner peripheral surface along the circumferential direction of the opposite ends. It is connected by flexible joints that can absorb displacement caused by expansion and contraction due to temperature changes acting on the underground structure, ground subsidence, earthquakes, etc., and it is connected with water tightness.

近年、この連結構造にさらなる水密性が要求されるようになり、内周側の可撓継手の外周側にさらに可撓継手を設けて、それぞれの可撓継手で対向端部どうしを連結する二重可撓継手構造が用いられることがある。   In recent years, further water tightness has been required for this connection structure, and a flexible joint is further provided on the outer peripheral side of the inner peripheral side flexible joint, and the opposing end portions are connected by the respective flexible joints. A heavy flexible joint structure may be used.

例えば、地下構造体の対向端部に板材で区画した中空空間を形成し、この中空空間に内周側および外周側可撓継手を配置して二重に対向端部どうしを連結する構造が提案されている（特許文献１参照）。この提案では、内周側可撓継手の内周側に中空空間を形成するコンクリート侵入防止板が設置されて、内周側に打設されるコンクリートが内周側可撓継手に接触しない構造にして可撓継手の可撓性を確保している。   For example, a structure is proposed in which a hollow space partitioned by a plate material is formed at the opposite end of the underground structure, and inner and outer flexible joints are arranged in this hollow space to connect the opposite ends in a double manner. (See Patent Document 1). In this proposal, a concrete intrusion prevention plate that forms a hollow space is installed on the inner circumference side of the inner circumference side flexible joint so that the concrete placed on the inner circumference side does not contact the inner circumference side flexible joint. Thus, the flexibility of the flexible joint is ensured.

しかしながら、内周側可撓継手とコンクリート侵入防止板との間は中空空間となっているので、コンクリート侵入防止板とその取付手段に高い水密性を持たせなければ、コンクリートの侵入を防止することができず、高コストおよび高い加工精度が必要となるという問題があった。また、何らかの原因でコンクリートの塊等の異物がこの空間に侵入した場合は、異物が伸縮ゴムを損傷させて、可撓継手の耐久性を低下させるという問題があった。
特開昭５７−２９８８０号公報 However, since the space between the inner periphery side flexible joint and the concrete intrusion prevention plate is a hollow space, the concrete intrusion prevention plate and its mounting means should be prevented from entering the concrete unless high water tightness is provided. There is a problem that high cost and high processing accuracy are required. In addition, when a foreign matter such as a lump of concrete enters the space for some reason, there is a problem that the foreign matter damages the elastic rubber and decreases the durability of the flexible joint.
JP-A-57-29880

本発明の目的は、地下構造体の内部に埋設される外周側可撓継手の可撓性を確保して、可撓性および水密性を良好にして地下構造体を連結できる二重可撓継手の取付構造を提供することにある。   An object of the present invention is to provide a double flexible joint that can secure the flexibility of an outer peripheral side flexible joint embedded in an underground structure and connect the underground structure with good flexibility and water tightness. It is in providing a mounting structure.

上記目的を達成するため本発明の二重可撓継手の取付構造は、連結される地下構造体の対向端部の周方向に沿って内周面に配設される伸縮ゴムを有する内周側可撓継手と、該対向端部の周方向に沿って前記内周側可撓継手の外周側に配設される伸縮ゴムを有する外周側可撓継手とを備え、前記それぞれの可撓継手の伸縮ゴムによって前記対向端部どうしを二重に連結する二重可撓継手の取付構造であって、前記外周側可撓継手は、その伸縮ゴムの内周側に該伸縮ゴムを変形可能に覆う保護充填部を設けるとともに、該伸縮ゴムの外周側に中空部を設けて前記地下構造体内部に埋設されることを特徴とするものである。   In order to achieve the above object, the double flexible joint mounting structure of the present invention has an inner peripheral side having elastic rubber disposed on the inner peripheral surface along the circumferential direction of the opposed end portions of the underground structures to be connected. A flexible joint, and an outer peripheral side flexible joint having an elastic rubber disposed on the outer peripheral side of the inner peripheral side flexible joint along the circumferential direction of the opposite end portion. A double flexible joint mounting structure in which the opposing end portions are double connected by an elastic rubber, wherein the outer peripheral side flexible joint covers the elastic rubber on the inner peripheral side of the elastic rubber so as to be deformable. A protective filling portion is provided, and a hollow portion is provided on the outer peripheral side of the stretchable rubber so as to be embedded in the underground structure.

本発明の二重可撓継手の取付構造によれば、連結される地下構造体の対向端部の周方向に沿って内周面に配設される伸縮ゴムを有する内周側可撓継手と、対向端部の周方向に沿って内周側可撓継手の外周側に配設される伸縮ゴムを有する外周側可撓継手とを備え、それぞれの可撓継手の伸縮ゴムによって対向端部どうしを二重に、即ち、二重可撓継手で連結する構造なので、高い水密性を確保できる。 According to the double flexible joint mounting structure of the present invention, an inner peripheral side flexible joint having elastic rubber disposed on the inner peripheral surface along the circumferential direction of the opposed end portions of the underground structures to be connected; An outer peripheral side flexible joint having an elastic rubber disposed on the outer peripheral side of the inner peripheral side flexible joint along the circumferential direction of the opposing end part, and the opposing end parts are separated by the elastic rubber of each flexible joint. Are connected by a double flexible joint, so that high water tightness can be secured.

また、外周側可撓継手は、その伸縮ゴムの内周側に伸縮ゴムを変形可能に覆う保護充填部を設けるとともに、この伸縮ゴムの外周側に中空部を設けて地下構造体内部に埋設されるので、埋設する際に内周側から地下構造体を構成するコンクリートが打設されても、保護充填部が伸縮ゴムにコンクリートが接触することを防止して、コンクリートによって変形が規制されないので伸縮ゴムの可撓性を維持することが可能となる。   In addition, the outer peripheral side flexible joint is provided with a protective filling portion that covers the elastic rubber in a deformable manner on the inner peripheral side of the elastic rubber, and a hollow portion is provided on the outer peripheral side of the elastic rubber to be embedded in the underground structure. Therefore, even if the concrete that forms the underground structure is placed from the inner circumference side when burying, the protective filling part prevents the concrete from coming into contact with the elastic rubber, and the deformation is not restricted by the concrete, so it can expand and contract. It becomes possible to maintain the flexibility of rubber.

以下、本発明の二重可撓継手の取付構造を図に示した実施形態に基づいて説明する。図１は実施形態の二重可撓継手の取付構造を一部拡大した縦断面図であり、トンネル等の地下構造体の軸方向の断面における構造を示し、図２はこの取付構造を用いて連結される地下構造体の対向端部１２を示す正面図である。   Hereinafter, the double flexible joint mounting structure of the present invention will be described based on the embodiments shown in the drawings. FIG. 1 is a partially enlarged longitudinal sectional view of the double flexible joint mounting structure of the embodiment, showing a structure in an axial cross section of an underground structure such as a tunnel, and FIG. 2 using this mounting structure. It is a front view which shows the opposing edge part 12 of the underground structure connected.

図２に示すように、特に水密性が要求される地下構造体の対向端部１２には、外周側に外周側可撓継手１ｂが、その内周側となる通路部１３の外側に内周側可撓継手１ａが設置されて二重の可撓継手によって、対向端部１２、１２どうしが連結される。図１に示す実施形態では、上側が地下構造体の対向端部１２の周方向に沿って内周面１２ａに設置される内周側可撓継手１ａ、下側が内周側可撓継手１ａの外周側に設置される外周側可撓継手１ｂとなっている。両可撓継手１ａ、１ｂの間の対向端部１２、１２どうしのすき間には、目地材１１が介挿されている。   As shown in FIG. 2, an outer peripheral side flexible joint 1b is provided on the outer peripheral side of the opposed end portion 12 of the underground structure particularly requiring watertightness, and an inner peripheral side is provided on the outer side of the passage portion 13 serving as the inner peripheral side. The side flexible joint 1a is installed, and the opposing ends 12 and 12 are connected to each other by a double flexible joint. In the embodiment shown in FIG. 1, the upper side is the inner peripheral side flexible joint 1a installed on the inner peripheral surface 12a along the circumferential direction of the opposing end 12 of the underground structure, and the lower side is the inner peripheral side flexible joint 1a. It is the outer peripheral side flexible joint 1b installed in the outer peripheral side. A joint material 11 is inserted between the opposing ends 12 and 12 between the flexible joints 1a and 1b.

内周側可撓継手１ａは、従来の一般的な可撓継手と同じであり、それぞれ対向端部１２の周方向に沿って内周面１２ａに金属製のＬ字状の取付板８が固定されている。伸縮ゴム２の断面形状は両端部に平面を有する円弧状となっており、内部に補強層を有している。伸縮ゴム２の両端部は押え板５を介してアンカー部３と固定ボルト４との締結によって取付板８に取付られて、両対向端部１２を跨ぐように伸縮ゴム２が配設されている。   The inner peripheral side flexible joint 1a is the same as a conventional general flexible joint, and a metal L-shaped mounting plate 8 is fixed to the inner peripheral surface 12a along the circumferential direction of the opposing end portion 12, respectively. Has been. The cross-sectional shape of the elastic rubber 2 is an arc shape having flat surfaces at both ends, and has a reinforcing layer inside. Both ends of the elastic rubber 2 are attached to the attachment plate 8 by fastening the anchor portion 3 and the fixing bolt 4 via the presser plate 5, and the elastic rubber 2 is disposed so as to straddle both opposing end portions 12. .

外周側可撓継手１ｂは、地下構造体を形成しているコンクリートに囲まれて内部に埋設されている。外周側可撓継手１ｂの設置場所は、それぞれ対向端部１２、１２の周方向に沿って固定されたフランジを有する金属製のＬ字状の取付板８と、この両取付板８、８の上端部間に架設された可撓被覆材９とによって閉空間が形成されて、コンクリートと隔離されている。   The outer peripheral side flexible joint 1b is embedded in the interior surrounded by the concrete forming the underground structure. The installation place of the outer peripheral side flexible joint 1b is a metal L-shaped mounting plate 8 having a flange fixed along the circumferential direction of the opposing end portions 12 and 12, respectively, and the mounting plates 8 and 8. A closed space is formed by the flexible covering material 9 installed between the upper end portions, and is isolated from the concrete.

可撓被覆材９は、例えば、繊維層、ゴム層またはこれらの複合層であり、可撓性および適度な強度を有するものを採用する。その両端部は、取付板８のそれぞれの上端部と接合部１０で図示しない接合手段で接合される。   The flexible covering material 9 is, for example, a fiber layer, a rubber layer, or a composite layer thereof, and employs a material having flexibility and appropriate strength. The both end portions are joined to the respective upper end portions of the mounting plate 8 by joining means (not shown) at the joining portion 10.

この隔離された閉空間では、対向端部１２の外周側の面１２ｂに固定された取付板８に断面円弧状の伸縮ゴム２の両端部が押え板５を介してアンカー部３と固定ボルト４との締結によって取付られて、両対向端部１２、１２を跨ぐように伸縮ゴム２が配設されている。伸縮ゴム２の内周側は、伸縮ゴム２の変形を確保する保護充填部６が設けられ、伸縮ゴム８の外周側は中空部７となっている。   In this isolated closed space, both ends of the elastic rubber 2 having an arc-shaped cross section are attached to the mounting plate 8 fixed to the outer peripheral surface 12 b of the opposed end portion 12 via the pressing plate 5 and the anchor portion 3 and the fixing bolt 4. The elastic rubber 2 is disposed so as to straddle both opposing end portions 12 and 12. A protective filling portion 6 that secures deformation of the elastic rubber 2 is provided on the inner peripheral side of the elastic rubber 2, and a hollow portion 7 is provided on the outer peripheral side of the elastic rubber 8.

保護充填部６は、例えば、ウレタン、ポリエチレン、スチロール等の比重の小さいフォーム材が充填されて形成されている。   The protective filling portion 6 is formed by filling a foam material having a small specific gravity, such as urethane, polyethylene, or styrene.

この構造を製造するには、まず、地下構造体の外周側に外周側可撓継手１ｂを取付けて、伸縮ゴム２の内周側に保護充填部６となる充填材を充填または現地で発泡注入する。その後、可撓被覆材９を両取付板８、８の上端部間に架設して伸縮ゴム２を両取付板８、８および可撓被覆材９で囲まれた閉空間に密封する。この状態で、配筋および内周側可撓継手１ａの取付板８の配設等を行なって、型枠を設置して地下構造体の対向端部１２の内周面１２ａとなる位置までコンクリートを打設し、養生して完成する。   In order to manufacture this structure, first, the outer peripheral side flexible joint 1b is attached to the outer peripheral side of the underground structure, and the filler serving as the protective filling portion 6 is filled on the inner peripheral side of the elastic rubber 2 or foamed and injected on site. To do. Thereafter, the flexible covering material 9 is installed between the upper ends of both the mounting plates 8 and 8, and the elastic rubber 2 is sealed in a closed space surrounded by the both mounting plates 8 and 8 and the flexible covering material 9. In this state, the arrangement of the reinforcing bars and the mounting plate 8 of the inner peripheral side flexible joint 1a, etc. is performed, and the mold is installed to the position where the inner peripheral surface 12a of the opposing end 12 of the underground structure is formed. Is completed and cured.

したがって、外周側可撓継手１ｂの上（内周側）からコンクリートを打設しても可撓被覆材９および保護充填部６によって隔てられて、伸縮ゴム２にコンクリートが接することはない。   Therefore, even if concrete is cast from the outer peripheral side flexible joint 1b (inner peripheral side), it is separated by the flexible covering material 9 and the protective filling portion 6 so that the concrete does not contact the elastic rubber 2.

この構造によって、外周側可撓継手１ｂの伸縮ゴム２はコンクリートが硬化した後でも、変形を規制されることなく本来の可撓性を確保して、内周側可撓継手１ａとともに地下構造体の対向端部１２、１２どうしを優れた可撓性および水密性を有して連結することができる。また、伸縮ゴム２がコンクリートに接触しないので、コンクリートによって損傷を受けることもなく、耐久性を維持できる。   Due to this structure, the elastic rubber 2 of the outer peripheral side flexible joint 1b ensures the original flexibility without being restricted in deformation even after the concrete is hardened, and the underground structure together with the inner peripheral side flexible joint 1a. The opposing end portions 12 and 12 can be connected with excellent flexibility and watertightness. Further, since the stretchable rubber 2 does not contact the concrete, the durability can be maintained without being damaged by the concrete.

この実施形態では、保護充填部６を可撓被覆材９で覆うことによって、保護充填部６をコンクリートから隔離してコンクリート側の外力の影響を低減しているので、より柔軟な充填材を採用することができ、これによって伸縮ゴム２の可撓性をさらに向上させている。   In this embodiment, the protective filling portion 6 is covered with the flexible covering material 9 to isolate the protective filling portion 6 from the concrete and reduce the influence of the external force on the concrete side, so a more flexible filling material is adopted. This can further improve the flexibility of the stretchable rubber 2.

保護充填部６に、この外力に耐え得る強度を有するとともに、ある程度の柔軟性を有する充填材を採用した場合は、可撓被覆材９を省略することもできる。例えば、フォーム材に替えてゴム材等を使用することもできる。   When the protective filling portion 6 has a strength that can withstand this external force and has a certain degree of flexibility, the flexible covering material 9 can be omitted. For example, a rubber material or the like can be used instead of the foam material.

本発明の二重可撓継手の取付構造を例示する一部拡大縦断面図である（地下構造体の軸方向の断面における取付構造を示す）。It is a partially expanded longitudinal cross-sectional view which illustrates the attachment structure of the double flexible joint of this invention (The attachment structure in the cross section of the axial direction of an underground structure is shown). 本発明の二重可撓継手の取付構造を用いて連結される地下構造体の端部を例示する正面図である。It is a front view which illustrates the edge part of the underground structure connected using the attachment structure of the double flexible joint of this invention.

符号の説明Explanation of symbols

１ａ 内周側可撓継手 １ｂ 外周側可撓継手
２ 伸縮ゴム
３ アンカー部
４ 固定ボルト
５ 押え板
６ 保護充填部
７ 中空部
８ 取付板
９ 可撓被覆材
１０ 接合部
１１ 目地材
１２ （地下構造体の）対向端部 １２ａ 内周面 １２ｂ 外周側の面
１３ 通路部 DESCRIPTION OF SYMBOLS 1a Inner circumference side flexible joint 1b Outer circumference side flexible joint 2 Elastic rubber 3 Anchor part 4 Fixing bolt 5 Presser plate 6 Protection filling part 7 Hollow part 8 Mounting plate
DESCRIPTION OF SYMBOLS 9 Flexible coating | covering material 10 Joint part 11 Joint material 12 Opposite end part (of underground structure) 12a Inner peripheral surface 12b Outer surface side
13 Passage

Claims (2)

連結される地下構造体の対向端部の周方向に沿って内周面に配設される伸縮ゴムを有する内周側可撓継手と、該対向端部の周方向に沿って前記内周側可撓継手の外周側に配設される伸縮ゴムを有する外周側可撓継手とを備え、前記それぞれの可撓継手の伸縮ゴムによって前記対向端部どうしを二重に連結する二重可撓継手の取付構造であって、前記外周側可撓継手は、その伸縮ゴムの内周側に該伸縮ゴムを変形可能に覆う保護充填部を設けるとともに、該伸縮ゴムの外周側に中空部を設けて前記地下構造体内部に埋設されることを特徴とする二重可撓継手の取付構造。   An inner peripheral side flexible joint having elastic rubber disposed on the inner peripheral surface along the circumferential direction of the opposed end portion of the underground structure to be connected, and the inner circumferential side along the circumferential direction of the opposed end portion A double-flexible joint comprising: an outer peripheral-side flexible joint having an elastic rubber disposed on the outer peripheral side of the flexible joint; and the opposing end portions are double-connected by the elastic rubber of each of the flexible joints The outer peripheral side flexible joint is provided with a protective filling portion for deformably covering the elastic rubber on the inner peripheral side of the elastic rubber, and a hollow portion on the outer peripheral side of the elastic rubber. The double flexible joint mounting structure is embedded in the underground structure. 前記保護充填部の内周側を可撓被覆材で覆った請求項１に記載の二重可撓継手の取付構造。   The double flexible joint mounting structure according to claim 1, wherein an inner peripheral side of the protective filling portion is covered with a flexible covering material.
JP2005065514A 2005-03-09 2005-03-09 Double flexible joint mounting structure Expired - Fee Related JP4496994B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005065514A JP4496994B2 (en) 2005-03-09 2005-03-09 Double flexible joint mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005065514A JP4496994B2 (en) 2005-03-09 2005-03-09 Double flexible joint mounting structure

Publications (2)

Publication Number Publication Date
JP2006249721A true JP2006249721A (en) 2006-09-21
JP4496994B2 JP4496994B2 (en) 2010-07-07

Family

ID=37090496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005065514A Expired - Fee Related JP4496994B2 (en) 2005-03-09 2005-03-09 Double flexible joint mounting structure

Country Status (1)

Country Link
JP (1) JP4496994B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010196258A (en) * 2009-02-23 2010-09-09 Taisei Corp Water sealing structure for emergency
CN102900103A (en) * 2012-08-21 2013-01-30 天津二十冶建设有限公司 Construction gap of underground waterproof concrete structure and wall template installation method thereof
JP2016075108A (en) * 2014-10-08 2016-05-12 西武ポリマ化成株式会社 Joint sealant and fitting structure thereof
CN113594776A (en) * 2021-08-06 2021-11-02 保定正开电缆附件有限公司 Expansion device for silicone rubber cable intermediate joint
CN113719147A (en) * 2021-07-29 2021-11-30 孙淮伟 City piping lane seepage expansion joint repair system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729880A (en) * 1980-07-31 1982-02-17 Seibu Polymer Kasei Kk Culvert joint
JPS6080177U (en) * 1983-11-01 1985-06-04 メイコーエンジニヤリング株式会社 Water-stop flexible joint for culvert boxes
JPH0791574A (en) * 1993-03-12 1995-04-04 Seibu Polymer Corp Coupling for culvert
JP2000129766A (en) * 1998-10-26 2000-05-09 Masako Nakamura Joint structure of cylindrical body for closed conduit
JP2003184491A (en) * 2001-12-14 2003-07-03 Kajima Corp Joint for secondary lining saving type culvert

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729880A (en) * 1980-07-31 1982-02-17 Seibu Polymer Kasei Kk Culvert joint
JPS6080177U (en) * 1983-11-01 1985-06-04 メイコーエンジニヤリング株式会社 Water-stop flexible joint for culvert boxes
JPH0791574A (en) * 1993-03-12 1995-04-04 Seibu Polymer Corp Coupling for culvert
JP2000129766A (en) * 1998-10-26 2000-05-09 Masako Nakamura Joint structure of cylindrical body for closed conduit
JP2003184491A (en) * 2001-12-14 2003-07-03 Kajima Corp Joint for secondary lining saving type culvert

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010196258A (en) * 2009-02-23 2010-09-09 Taisei Corp Water sealing structure for emergency
CN102900103A (en) * 2012-08-21 2013-01-30 天津二十冶建设有限公司 Construction gap of underground waterproof concrete structure and wall template installation method thereof
CN102900103B (en) * 2012-08-21 2014-11-26 天津二十冶建设有限公司 Construction gap of underground waterproof concrete structure and wall template installation method thereof
JP2016075108A (en) * 2014-10-08 2016-05-12 西武ポリマ化成株式会社 Joint sealant and fitting structure thereof
CN113719147A (en) * 2021-07-29 2021-11-30 孙淮伟 City piping lane seepage expansion joint repair system
CN113594776A (en) * 2021-08-06 2021-11-02 保定正开电缆附件有限公司 Expansion device for silicone rubber cable intermediate joint
CN113594776B (en) * 2021-08-06 2023-11-24 保定正开电缆附件有限公司 Expansion device for middle joint of silicone rubber cable

Also Published As

Publication number Publication date
JP4496994B2 (en) 2010-07-07

Similar Documents

Publication Publication Date Title
JP4496994B2 (en) Double flexible joint mounting structure
WO2001084037A1 (en) Duct repairing material, repairing structure, and repairing method
US6676136B2 (en) Flexible waterstop ring
JP5320262B2 (en) Connection structure and connection method between manhole and composite pipe
JPH10227040A (en) Pile foundation structure
JP5215752B2 (en) Flexible ring for shield tunnel
JP3677405B2 (en) Flexible joint for connecting tunnel hollow connectors
JP3777549B2 (en) Synthetic underground wall, its construction method, and water expansion waterproofing material
JP3708859B2 (en) Flexible joint
JPS6115236B2 (en)
KR100550294B1 (en) Flexible pipe for sewerage
JP2019157621A (en) Composite segment
JP3716289B2 (en) Comb-type joint for flexible tube, fume tube connection structure using the same, and construction method thereof
JP5603291B2 (en) Tunnel lining reinforcement structure and tunnel lining reinforcement method
JP4308363B2 (en) Flexible joint
JPS6043543A (en) Joint of cylindrical underground structure
JP4013232B2 (en) Seismic structure at tunnel junction
JP3525268B2 (en) Culvert fittings
JP3863344B2 (en) Flexible joint for secondary lining pipe of shield tunnel
JP2003184491A (en) Joint for secondary lining saving type culvert
JP6793386B2 (en) Seismic joints for manholes and their mounting methods
JP4293900B2 (en) Concrete protection method for movable pipe joints and pipes
JP4249101B2 (en) Flexible segment
JP4374258B2 (en) Manhole-tube connection structure and connection method
JP4037818B2 (en) Secondary lining omission type culvert joint

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080226

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100311

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100323

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100405

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130423

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130423

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130423

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees