JP6647913B2

JP6647913B2 - Water blocking structure of joint material mounting groove

Info

Publication number: JP6647913B2
Application number: JP2016035481A
Authority: JP
Inventors: 和木　多克; 多克和木; 亘大橋; 新城戸崎
Original assignee: 西武ポリマ化成株式会社
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2020-02-14
Anticipated expiration: 2036-02-26
Also published as: JP2017150269A

Description

本発明は、目地材取付溝の遮水構造に関する。 The present invention relates to a water-blocking structure for a joint material mounting groove.

ケーソンやブロックなどの重力式構造物が管理型廃棄物最終処分場の護岸として用いられていることが多い。この場合、隣接するケーソン間などの構造物間の目地部に、地震などによる地盤変動や不等沈下などにより目地部の間隔が変位しても土砂、廃棄物、保有水、遮水材などの流出を防止するため、遮水構造が設けられる。 Gravity-type structures such as caisson and blocks are often used as revetments for managed waste landfills. In this case, even if the space between joints is displaced due to ground deformation or uneven settlement due to earthquake, etc., the joints between structures such as between adjacent caisson etc. In order to prevent outflow, a waterproof structure is provided.

構造物間の目地部の遮水構造は、例えば特許文献１に開示されたものがあり、隣接するケーソン間などの目地部の壁面の上下方向に対向して溝を形成し、溝の開口部をスリット状に狭くしておき、目地部の間隔より広い目地材の両端部を対向する溝に挿し込むようにし、間隔をあけて２つ取り付けた２つの目地材間に目地部遮水材としてアスファルトマスチックなどを充填して構成されている。
これにより、目地材と目地材間に充填された目地部遮水材とにより、地震などによる地盤変動や不等沈下などによって目地部の間隔が変位しても土砂、廃棄物、保有水、遮水材などの流出を防止して遮水する。 A water-blocking structure at a joint between structures is disclosed in, for example, Patent Document 1. A groove is formed in a vertical direction of a wall surface of a joint such as between adjacent caissons, and a groove is formed. The slits are narrowed in the shape of a slit, and the both ends of the joint material wider than the joint space are inserted into the opposing grooves, and as a joint waterproofing material between the two joint materials attached at intervals. It is configured by filling asphalt mastic and the like.
As a result, the joint material and the joint water-blocking material filled between the joint materials allow the earth and sand, waste, water holding, and water shielding to be maintained even if the gap between joints is displaced due to ground deformation or uneven settlement due to an earthquake or the like. Prevent outflow of water materials etc. and block water.

特開２００５−１４６６５９号公報JP 2005-146659 A

特許文献１に開示された遮水構造では、２つの目地材の間に充填した目地部遮水材を目地部に保持することで遮水するようにしているが、目地材を取り付ける溝の遮水性が保たれていないと、溝を回り込んで目地部遮水材が漏洩してしまう恐れがある。
そこで、溝内にも遮水材を充填するようにしているが、近年、目地材を取り付ける溝についての遮水性に対する要望が高まり、一層の遮水性の向上が望まれている。 In the water-blocking structure disclosed in Patent Literature 1, the joint-blocking material filled between the two joint members is held by the joint to block the water. If the water is not maintained, the joint waterproofing material may leak around the groove.
Therefore, a groove is filled with a water-blocking material. In recent years, however, there has been an increasing demand for water-blocking of the groove to which the joint material is to be attached, and further improvement in water-blocking has been desired.

本発明は、上記従来技術の要望に鑑みてなされたもので、目地材を取り付ける溝の遮水性の一層の向上を図ることができる目地材取付溝の遮水構造を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention has been made in view of the demands of the related art described above, and has as its object to provide a water-blocking structure of a joint material mounting groove capable of further improving the water shielding of the groove for mounting the joint material. .

上記目的を達成するため、本発明の目地材取付溝の遮水構造は、
目地部を挟んで配置され構造物に設けられた開口部を有する目地材取付溝に、前記目地部を跨いで目地材の両端部を前記目地材取付溝の前記開口部から挿入固定する目地材取付溝の遮水構造であって、
前記開口部と前記目地材との間に、それぞれ前記開口部と前記目地材とに接して遮水する溝遮水部材を備え、
前記目地材取付溝は、溝背面および／または溝側面に、前記目地材の取り付け位置を前方および／または側方にガイドするガイド部材を備える、
ことを特徴とする。
また、本発明の目地材取付溝の遮水構造は、
目地部を挟んで配置され構造物に設けられた開口部を有する目地材取付溝に、前記目地部を跨いで目地材の両端部を前記目地材取付溝の前記開口部から挿入固定する目地材取付溝の遮水構造であって、
前記開口部と前記目地材との間に、それぞれ前記開口部と前記目地材とに接して遮水する溝遮水部材を備え、
前記目地材取付溝は、底部が塞がれて溝底部遮水材が設けられる、
ことを特徴とする。
前記目地材取付溝は、底部が塞がれて溝底部遮水材が設けられることが好ましい。 In order to achieve the above object, the water blocking structure of the joint material mounting groove of the present invention,
A joint material that inserts and fixes both ends of the joint material from the opening of the joint material attaching groove across the joint in a joint material attaching groove having an opening provided in the structure and arranged with the joint portion interposed therebetween. Water-blocking structure of the mounting groove,
Between the opening and the joint material, provided with a groove water-blocking member that contacts with the opening and the joint material to block water ,
The joint member mounting groove, the groove rear and / or groove flanks, Ru provided with a guide member for guiding the mounting position of the joint member to the front and / or side,
It is characterized by the following.
In addition, the waterproof structure of the joint material mounting groove of the present invention,
A joint material that inserts and fixes both ends of the joint material from the opening of the joint material attaching groove across the joint in a joint material attaching groove having an opening provided in the structure and arranged with the joint portion interposed therebetween. Water-blocking structure of the mounting groove,
Between the opening and the joint material, provided with a groove water-blocking member that contacts with the opening and the joint material to block water,
The joint material mounting groove is provided with a groove bottom waterproof material with a closed bottom.
It is characterized by the following.
It is preferable that the joint material mounting groove be closed at the bottom and provided with a groove bottom waterproof material .

前記溝遮水部材は、前記開口部の両側にそれぞれ配置される板状溝遮水材で構成されることが好ましい。 It is preferable that the groove water-impervious member is formed of a plate-shaped groove water-impervious material disposed on both sides of the opening.

前記溝遮水部材は、前記開口部の両側にそれぞれ配置され中空部を有して中詰材が充填される円筒状溝遮水材で構成されることが好ましい。 It is preferable that the groove water-impervious member is formed of a cylindrical groove water-impervious material that is disposed on both sides of the opening and has a hollow portion and is filled with a filling material.

本発明によれば、目地材を取り付ける溝の遮水性の一層の向上を図ることができる。 ADVANTAGE OF THE INVENTION According to this invention, the further improvement of the water-shielding of the groove | channel which attaches a joint material can be aimed at.

本発明の目地材取付溝の遮水構造の一実施の形態にかかる目地材取付溝の平面図である。It is a top view of the joint material attachment groove concerning one embodiment of the water blocking structure of the joint material attachment groove of the present invention. 本発明の目地材取付溝の遮水構造の他の一実施の形態にかかる目地材取付溝の平面図である。It is a top view of the joint material attachment groove concerning another embodiment of the water blocking structure of the joint material attachment groove of the present invention. 本発明の目地材取付溝の遮水構造の一実施の形態にかかる目地材取付溝を拡大したそれぞれ平面図である。It is the top view which expanded the joint material attachment groove concerning one embodiment of the water blocking structure of the joint material attachment groove of the present invention, respectively. 本発明の目地材取付溝の遮水構造の他の一実施の形態にかかる目地材取付溝を拡大したそれぞれ平面図である。It is each the enlarged plan view of the joint material attachment groove concerning another embodiment of the water blocking structure of the joint material attachment groove of the present invention. 本発明の目地材取付溝の遮水構造のさらに他の一実施の形態にかかる目地材取付溝を拡大したそれぞれ平面図である。It is each the top view which expanded the joint material attachment groove concerning further another embodiment of the water blocking structure of the joint material attachment groove of this invention. 本発明の目地材取付溝の遮水構造の一実施の形態にかかる目地材取付溝を拡大した外観斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which expanded the joint material attachment groove concerning one Embodiment of the water blocking structure of the joint material attachment groove of this invention. 本発明の目地材取付溝の遮水構造の一実施の形態にかかるガイド部材の施工途中の平面図及びＡ−Ａ断面図である。It is the top view in the middle of construction of the guide member concerning one embodiment of the water blocking structure of the joint material attachment groove of the present invention, and an AA sectional view. 本発明の目地材取付溝の遮水構造の一実施の形態にかかるガイド部材の設置状態の平面図及びＢ−Ｂ断面図である。It is the top view of the installation state of the guide member concerning one Embodiment of the water blocking structure of the joint material attachment groove of this invention, and BB sectional drawing.

以下、本発明の実施の形態について図面を参照して詳細に説明する。
本発明の目地材取付溝の遮水構造１００は、構造物であるケーソン１，１間の目地部２を遮水する目地材１０を取り付けるための目地材取付溝３に適用されるものである。
本発明の目地材取付溝の遮水構造１００は、目地部２を挟んで配置されケーソン１，１に設けられた開口部３ａを有する目地材取付溝３に、目地部２を跨いで目地材１０の両端部を目地材取付溝３の開口部３ａから挿入固定する目地材取付溝３の遮水構造１００であって、開口部３ａと目地材１０との間に、それぞれ開口部３ａと目地材１０とに接して遮水する溝遮水部材２０を備えて構成される。
なお、ケーソン１，１としては、コンクリート製、鋼製、これらを組み合わせたハイブリッド製などのケーソンに限らず、Ｌ型ブロックやセルラーブロックなどであっても良い。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The joint structure mounting groove waterproofing structure 100 of the present invention is applied to the joint material attaching groove 3 for attaching the joint material 10 for shielding the joint part 2 between the caisson 1 and the structure 1. .
A joint material mounting groove water-shielding structure 100 of the present invention includes a joint material mounting groove 3 disposed across a joint portion 2 and having an opening 3 a provided in a caisson 1, 1. 10 is a water blocking structure 100 of the joint material mounting groove 3 for inserting and fixing both ends of the joint material from the opening 3a of the joint material mounting groove 3, wherein the opening 3 a and the joint material 10 are respectively provided between the opening 3 a and the joint material 10. It is provided with a groove water-blocking member 20 that contacts with the material 10 and blocks water.
The caissons 1 and 1 are not limited to caissons made of concrete, steel, or a hybrid of these, and may be L-shaped blocks or cellular blocks.

目地材１０が設置される構造物としてのケーソン１，１には、目地部２を挟んで対向する端面１ａ、１ａに上下方向に沿って目地材取付溝３、３が形成してある。目地材取付溝３、３には、それぞれ狭幅の開口部３ａ，３ａが設けられるとともに、内部に空間３ｂ，３ｂが形成される。
目地材取付溝３，３は、例えば図１に示すように、ケーソン１の端面１ａに横断面が矩形の凹部４として鋼材などで形成される。矩形の凹部４には、その開口を２枚の板材５で塞ぐようにして狭い幅の開口部３ａと内部の空間３ｂが形成されている。さらに、開口部３ａ，３ａには、板材５の開口側端部に図示しない丸棒が溶接などで取り付けられるようにしても良い。これにより、目地材１０と円弧面で接触するようにして接触による損傷を防止する。
なお、板材５の開口側端部に丸棒を溶接するのに代えて円弧状に加工（Ｒ加工や面取り）するようにしても良い。 In the caisson 1, 1 as a structure in which the joint material 10 is installed, joint material attachment grooves 3, 3 are formed on the end faces 1 a, 1 a facing each other with the joint part 2 interposed therebetween along the vertical direction. The joint material mounting grooves 3, 3 are provided with narrow openings 3a, 3a, respectively, and have spaces 3b, 3b formed therein.
As shown in FIG. 1, for example, the joint material attachment grooves 3, 3 are formed in the end surface 1a of the caisson 1 as a concave portion 4 having a rectangular cross section with a steel material or the like. In the rectangular recess 4, an opening 3 a having a narrow width and an internal space 3 b are formed so as to cover the opening with two plate members 5. Furthermore, a round bar (not shown) may be attached to the openings 3a, 3a at the opening-side end of the plate member 5 by welding or the like. Thereby, the joint member 10 is brought into contact with the arc surface to prevent damage due to the contact.
Instead of welding a round bar to the end of the plate material 5 on the opening side, it may be processed into an arc shape (R processing or chamfering).

なお、目地材取付溝３は、開口部３ａが狭幅で内部に空間３ｂが形成されるものであれば、その横断面形状は、矩形に限らず円形など他の形状であっても良い。
また、目地材取付溝３は、施工上、開口部３ａを凹部４とは別の板材５で形成するようにすることが好ましいが、板材５を省略して図示した図２〜図５のように、凹部４に開口部３ａを一体に形成しても良い。
また、開口部３ａがケーソン１の端面１ａ上に位置し、空間３ｂがケーソン１内に配置される場合に限らず、鋼材などで構成した別体の目地材取付溝をケーソン１の端面１ａから突き出すように取り付けても良い。
また、ケーソン１，１の対向する目地材取付溝３，３は、完全に直線状に対向させる必要はなく、目地材１０の大きさなどによって異なるが、目地材１０を挿着できる程度の角度の違いが生じて対向する状態であっても良い。 In addition, as long as the opening 3a has a narrow width and the space 3b is formed inside, the cross-sectional shape of the joint material mounting groove 3 is not limited to a rectangle, and may be another shape such as a circle.
In addition, the joint material mounting groove 3 is preferably formed such that the opening 3a is formed of a plate material 5 different from the concave portion 4 from the viewpoint of construction, but as shown in FIGS. Alternatively, the opening 3 a may be formed integrally with the recess 4.
The opening 3a is located on the end surface 1a of the caisson 1, and the space 3b is not limited to being disposed in the caisson 1. A separate joint material mounting groove made of steel or the like can be separated from the end surface 1a of the caisson 1. It may be attached so as to protrude.
The facing joint mounting grooves 3 and 3 of the caisson 1 and 1 do not need to be completely linearly opposed, and vary depending on the size of the joint 10 and the like. May be in a state of facing each other due to the difference.

目地材取付溝３は、ケーソン１の端面１ａの大きさ（目地部２に沿う長さ）にもよるが、例えば、海側と埋立側との間などの２箇所に間隔をあけて設けられたり、間隔をあけた２箇所だけでなく、さらに２箇所設けて４箇所としても良い。 The joint material attachment groove 3 is provided at two places, for example, between the sea side and the landfill side, with an interval depending on the size of the end face 1a of the caisson 1 (length along the joint part 2). In addition to two places with intervals, two places may be provided and four places may be provided.

また、目地材取付溝３に取り付ける目地材１０は、必ずしも全てが同一仕様のものでなくとも想定される変位を許容できるものであれば良く、少なくとも１つの目地材１０以外は、目地材取付溝３を用いて挿入固定しない形式、例えば端面１ａにアンカーボルトなどで直接取り付ける目地材を用いるようにしても良い。 Further, the joint members 10 to be attached to the joint member attachment grooves 3 are not limited to all having the same specifications, as long as they can tolerate an assumed displacement. For example, a joint material that is not inserted and fixed by using the joint member 3, for example, a joint material that is directly attached to the end face 1 a with an anchor bolt or the like may be used.

目地材１０は、例えば図１に示すように、対向するケーソン１，１の端面１ａ，１ａの目地材取付溝３，３の間に取り付けられる。目地材１０は、ゴムや合成樹脂などの可撓性材料で作られる。目地材１０は、その可撓性および形状効果で想定した許容変位に追従できるようにしてある。なお、目地材１０は、必要に応じて可撓性材料の内部に補強材が入れられて外部を可撓性材料とした補強構造が採られたものが用いられる。
目地材１０は、例えば１次止水材１１と２次止水材１２とで構成され、両端部に目地材取付溝３に取り付ける取付部１１ａ，１１ａ、１２ａ，１２ａを備える。目地材１０は、取付部１１ａ，１１ａ，１２ａ，１２ａの中間部に伸縮により変位を許容する余長部１２ｂ（１次止水材１１の余長部は、図示せず）が連結して設けられる。余長部１２ｂは、目地部２に配置され、目地部２の変位に追従してシール状態を保持する。 For example, as shown in FIG. 1, the joint material 10 is attached between the joint material attachment grooves 3, 3 of the end faces 1 a, 1 a of the facing caissons 1, 1. The joint material 10 is made of a flexible material such as rubber or synthetic resin. The joint member 10 can follow the allowable displacement assumed by its flexibility and shape effect. As the joint material 10, a material having a reinforcing structure in which a reinforcing material is inserted into a flexible material as necessary and the outside is made of a flexible material is used.
The joint material 10 is composed of, for example, a primary water-stop material 11 and a secondary water-stop material 12, and has attachment portions 11a, 11a, 12a, 12a attached to the joint material attachment grooves 3 at both ends. The joint material 10 is provided with an extra length portion 12b (an extra length portion of the primary waterproofing material 11 is not shown) connected to an intermediate portion of the attachment portions 11a, 11a, 12a, and 12a to allow displacement by expansion and contraction. Can be The extra length portion 12b is arranged in the joint portion 2 and keeps a sealed state following the displacement of the joint portion 2.

本実施形態の目地材１０は、想定される地震動に対し、１次許容量としてのレベル１地震動の変位量に追随する１次止水材１１と、１次許容量の変位を越えるレベル２地震動の変位量に追随する２次止水材１２と、で構成される。１次止水材１１は、２次止水材１２と独立して固定されて構成される。
そして、レベル１地震動までは、図示しない余長部を有する１次止水材１１で変位を許容して土砂，廃棄物，保有水，遮水材などの漏洩を防止する。同時に、１次止水材１１は、２次止水材１２の余長部１２ｂの変位を規制するよう構成してある。
一方、レベル１地震動の変位量を越える変位量に対しては、１次止水材１１は破断され、２次止水材１２の余長部１２ｂにより変位を許容可能とし、漏洩を防止するよう構成してある。
これにより、レベル１地震動に対して目地材１０は、１次止水材１１によってケーソン１，１間の目地部２からの廃棄物および保有水などの漏洩を防止する。レベル２地震動に対して目地材１０は、２次止水材１２によってケーソン１，１などの構造物（護岸）自体は変形しても海面廃棄物処分場内の廃棄物および保有水が目地部２から外部に漏洩（流出あるいは浸出）しないようにする。
本実施形態では、想定される地震動としてレベル１地震動に対しては、例えば、相対変位量を１００〜２００ｍｍの範囲と想定し、レベル２地震動に対しては、例えば、相対変位量を最大７５０ｍｍと想定している。 The joint material 10 of the present embodiment includes a primary water-stopping material 11 that follows the displacement amount of the level 1 earthquake motion as the primary allowance for the assumed earthquake motion, and a level 2 earthquake motion that exceeds the displacement of the primary allowance. And a secondary water-stopping material 12 that follows the displacement amount. The primary water-stopping material 11 is configured to be fixed independently of the secondary water-stopping material 12.
Until the level 1 earthquake motion, displacement is allowed by the primary water-stopping material 11 having a surplus portion (not shown) to prevent leakage of earth and sand, waste, water holding, and water-blocking material. At the same time, the primary water-stopping material 11 is configured to regulate the displacement of the extra length 12b of the secondary water-stopping material 12.
On the other hand, for a displacement amount exceeding the displacement amount of the level 1 seismic motion, the primary water-stopping material 11 is broken, and the extra length 12b of the secondary water-stopping material 12 allows the displacement, thereby preventing leakage. It is composed.
As a result, the joint material 10 prevents leakage of the waste and the retained water from the joint portion 2 between the caissons 1 and 1 by the primary waterproofing material 11 against the level 1 earthquake motion. The joint material 10 against the level 2 seismic motion is changed to the joint material 2 by the secondary water blocking material 12 even if the structures (seawalls) such as the caisson 1 and 1 are deformed even if the waste and the retained water in the sea surface waste disposal site are deformed. From leaking out (leaching or leaching).
In the present embodiment, for example, relative displacement is assumed to be in a range of 100 to 200 mm for a level 1 ground motion as an assumed ground motion, and relative displacement is set to a maximum of 750 mm for a level 2 ground motion. I assume.

目地材１０を構成する１次止水材１１は、弾性素材によってシート状に形成されており、弾性素材の可撓性および／または図示しない伸縮する余長部などの形状効果によりレベル1地震動の変位量を許容することができるように構成してある。目地材１０では、１次止水材１１に、必要に応じて弾性素材の内部に補強材が入れられて外部を弾性素材とした補強構造が採られたものが用いられる。
１次止水材１１は、例えば、図１に示すように、両端部に目地材取付溝３に取り付ける取付部１１ａ，１１ａを備える。
取付部１１ａは、挿し込み固定金具６にボルト・ナット７を介して取り付けるための取付孔が所定の間隔で形成してある。取付部１１ａは、補強材で補強する。
１次止水材１１は、取付部１１ａ，１１ａの中間部に図示しない伸縮する余長部が一体に連結して設けられる。余長部は、目地部２に配置され、レベル１地震動までの変位量に追随してシール状態を保持する。
なお、１次止水材１１の余長部は、レベル１地震動までの変位量に追随できれば良く、その形状は、特に限定するものでなく、蛇腹状や折り返し状などこれまでの目地材に採用されている形状を採用することができる。 The primary water-stopping material 11 constituting the joint material 10 is formed in a sheet shape by an elastic material, and is formed of a level 1 earthquake motion due to the flexibility of the elastic material and / or a shape effect of an unshown extra-long part that expands and contracts. It is configured so that the displacement amount can be allowed. As the joint material 10, a material having a reinforcing structure in which a reinforcing material is inserted into an elastic material as needed and the outside is made of an elastic material is used as the primary water-stopping material 11.
As shown in FIG. 1, for example, the primary water-stopping material 11 includes mounting portions 11 a, 11 a mounted on the joint material mounting grooves 3 at both ends.
The attachment portion 11a has attachment holes for attachment to the insertion fixture 6 via bolts and nuts 7 at predetermined intervals. The mounting portion 11a is reinforced with a reinforcing material.
The primary water-stopping material 11 is provided at an intermediate portion of the mounting portions 11a, 11a, with an extra length portion that is not shown extending and contracting integrally connected thereto. The extra length portion is disposed at the joint portion 2 and keeps a sealed state following the displacement amount up to the level 1 earthquake motion.
The extra length of the primary waterproofing material 11 only needs to be able to follow the displacement amount up to the level 1 earthquake motion, and its shape is not particularly limited, and is used as a conventional joint material such as a bellows shape or a folded shape. Can be adopted.

目地材１０では、１次止水材１１は、２次止水材１２の少なくとも一方側に設けられる。すなわち、２次止水材１２を変位させる力が加わる上流側、または上流側および下流側の両側に設けられる。
１次止水材１１を２次止水材１２の少なくとも一方側を覆って設けることで、想定した１次許容量であるレベル１地震動までの変位量の範囲では、直接変位を生じさせる力が２次止水材１２に加わらないようにし、２次止水材１２に変位が生じないように規制する。
例えば、ケーソン１，１の海側や埋立側の側面に目地材１０を配置する場合には、２次止水材１２の外側（変位させる力が加わる上流側）となる海側や埋立側に１次止水材１１を配置して２次止水材１２を覆うようにする。
一方、目地部２の中間部に目地材１０を配置する場合には、図１に示すように、両側から変位を生じさせる力が加わることから２次止水材１２の両側に１次止水材１１を配置して両側を覆うようにする。 In the joint material 10, the primary waterproof material 11 is provided on at least one side of the secondary waterproof material 12. That is, it is provided on the upstream side where the force for displacing the secondary water blocking material 12 is applied, or on both the upstream side and the downstream side.
By providing the primary water-stopping material 11 so as to cover at least one side of the secondary water-stopping material 12, within the range of the displacement up to the level 1 seismic motion, which is the assumed primary allowable amount, the force that directly causes displacement is generated. It is regulated so as not to be added to the secondary water-stopping material 12 so that the secondary water-stopping material 12 is not displaced.
For example, when the jointing material 10 is arranged on the sea side or the landfill side of the caisson 1, 1, the seaside or the landfill side outside (the upstream side to which a force for displacing is applied) of the secondary waterproofing material 12 is provided. The primary waterproofing material 11 is arranged so as to cover the secondary waterproofing material 12.
On the other hand, when the joint material 10 is arranged in the middle part of the joint part 2, as shown in FIG. The material 11 is arranged so as to cover both sides.

２次止水材１２は、弾性素材によってシート状に形成されている。２次止水材１２は、目地部２を跨いで配置され、両端部が隣接する構造物であるケーソン１，１に、例えば、目地材取付溝３を介して固定される。２次止水材１２は、構造物であるケーソン１，１間のレベル２地震動による変位を許容して漏洩を防止する余長部１２ｂを有している。
これにより、構造物であるケーソン１，１が、レベル２地震動によって護岸自体が損傷したとしても、余長部１２ｂによって相対変位量を最大７５０ｍｍ（総変位量は、１５００ｍｍ）としているので、ケーソン１，１などの護岸の内側の廃棄物および保有水の流出（漏洩）を防止することができる。 The secondary water blocking material 12 is formed in a sheet shape from an elastic material. The secondary waterproofing material 12 is disposed across the joint 2 and is fixed to the caissons 1, 1, which are adjacent structures at both ends, for example, via the joint mounting groove 3. The secondary water-stopping material 12 has an extra length portion 12b that allows displacement due to level 2 seismic motion between the caisson 1 and the structure 1 to prevent leakage.
As a result, even if the caisson 1 or 1 as a structure has a revetment itself damaged by the level 2 earthquake motion, the relative displacement is set to a maximum of 750 mm (total displacement is 1500 mm) by the extra length 12b. , 1 etc., the outflow (leakage) of waste and retained water inside the revetment can be prevented.

２次止水材１２は、両端部に目地材取付溝３に取り付けるための取付部１２ａ，１２ａを備え、中間部に余長部１２ｂを備える。
取付部１２ａには、挿し込み固定金具６にボルト・ナット７を介して取り付けるための取付孔が所定の間隔で形成してある。取付部１２ａは、補強材で補強してあり、１次止水材１１の取付部１１ａと重ねて挿し込み固定金具６にボルト・ナット７で取り付けられる。
こうすることで、２次止水材１２の取付部１２ａに１次止水材１１の取付部１１ａを介して変位させようとする力が加わることがなく、それぞれを独立して変位させることができる。 The secondary water-stopping material 12 has attachment portions 12a, 12a for attaching to the joint material attachment groove 3 at both ends, and an extra-length portion 12b at an intermediate portion.
Attachment holes for attaching to the insertion fixture 6 via the bolts and nuts 7 are formed in the attachment portion 12a at predetermined intervals. The mounting portion 12a is reinforced with a reinforcing material, and is inserted into the mounting portion 11a of the primary water-stopping material 11 with the bolts and nuts 7 inserted thereinto.
By doing so, a force for displacing the mounting portion 12a of the secondary water-stopping material 12 via the mounting portion 11a of the primary water-stopping material 11 is not applied, and each of them can be displaced independently. it can.

２次止水材１２は、取付部１２ａ，１２ａの中間部に余長部１２ｂが一体に連結して設けられる。余長部１２ｂは、例えば、目地部２に配置され、想定されるレベル２地震動による変位量に追随してシール状態を保持する。
なお、２次止水材１２の余長部１２ｂは、例えば、蛇腹型等としてレベル２地震動の変位量に追随できる長さを備えて構成される。そして、余長部１２ｂを備えた２次止水材１２の両端部の取付部１２ａの間隔が目地材取付溝３，３の間隔に合わせて形成してある。
目地材１０は、長手方向には、ケーソン１の高さに応じた必要な長さに形成され、複数枚の可撓性材料のシートを接着などで連結することで製造される。
なお、目地材１０は、吊り下げて挿し込むなどの施工の必要に応じ、施工後切断する部分を上端部に設けておく。目地材１０は、長手方向に分割しておき、これを連結して取り付けるようにしても良い。 The secondary water-stopping material 12 is provided such that an extra-length portion 12b is integrally connected to an intermediate portion between the mounting portions 12a. The extra-length portion 12b is disposed, for example, at the joint portion 2 and keeps a sealed state following an assumed displacement amount due to a level 2 earthquake motion.
The extra length 12b of the secondary water blocking material 12 is configured to have a length that can follow the amount of displacement of the level 2 earthquake motion, for example, as a bellows type or the like. And the space | interval of the attachment part 12a of the both ends of the secondary waterproofing material 12 provided with the extra length part 12b is formed according to the space | interval of the joint material attachment groove | channel 3,3.
The joint material 10 is formed in the longitudinal direction to a required length corresponding to the height of the caisson 1 and is manufactured by connecting a plurality of sheets of a flexible material by bonding or the like.
In addition, the joint material 10 is provided with a portion to be cut after the construction is provided at the upper end portion as necessary for the construction such as hanging and inserting. The joint material 10 may be divided in the longitudinal direction, and may be connected and attached.

目地部２の底部については、１次止水材１１や２次止水材１２の下端部、少なくとも２次止水材１２の下端部に変形に追随する弾性体等の袋状の遮水部を取り付けるようにし、その弾性体の遮水部を目地材１０の自重により押し付けるようにして追随させることで遮水する。
また、１次止水材１１や２次止水材１２の下端部に弾性体やブラシなどを設けることにより、レベル１地震動およびレベル２地震動の目地材１０の変位に対しても対応できるようにしても良い。
さらに、ケーソン１，１を深層混合処理工法により改良された地盤上のトレンチ部内に設置する場合には、目地材１０の下端部に弾性体やブラシなどを設けることなく、トレンチ部内に遮水材を充填することによって底部を遮水すれば良い。
このような目地材１０によって、レベル１地震動による変位量およびレベル２地震動の大きな変位量に対しても目地材１０が瞬時に応答して伸長され、遮水性を確保することができる。
一方、これまでの２つの目地材間の目地部に目地部遮水材としてアスファルトマスチックなどを充填して構成した遮水構造では、目地部遮水材の変位に対する追随速度が遅く、瞬時に遮水性を確保することが困難であったが、本願の目地材１０によれば、地震などによる地盤変動や不等沈下などによって目地部２の間隔が変位しても応答性がよく瞬時に対応し、土砂、廃棄物、保有水、遮水材などの流出を防止して遮水することができるのである。 Regarding the bottom of the joint 2, a bag-shaped water-blocking portion such as an elastic body that follows deformation at least at the lower end of the primary water-stopping material 11 and the lower end of the secondary water-stopping material 12. Is attached, and the water-blocking part of the elastic body is pressed by the joint material 10 by its own weight to follow the joint, thereby blocking the water.
Further, by providing an elastic body or a brush at the lower end of the primary water-stopping material 11 or the secondary water-stopping material 12, it is possible to cope with the displacement of the joint material 10 caused by the level 1 earthquake motion and the level 2 earthquake motion. May be.
Further, when the caisson 1 or 1 is installed in the trench on the ground improved by the deep-layer mixing method, a water-blocking material is provided in the trench without providing an elastic body or a brush at the lower end of the joint material 10. It is sufficient to block the bottom with water.
Such a joint material 10 allows the joint material 10 to instantaneously respond to the displacement amount caused by the level 1 earthquake motion and the large displacement amount of the level 2 earthquake motion, thereby ensuring water shielding.
On the other hand, in a water-blocking structure in which the joint between the two joint materials is filled with asphalt mastic or the like as a joint water-blocking material, the following speed of displacement of the joint water-blocking material is slow, and instantaneous blocking occurs. Although it was difficult to secure water, the joint material 10 of the present application has good responsiveness and instantaneous response even if the space between the joint portions 2 is displaced due to ground deformation or uneven settlement due to an earthquake or the like. In this way, it is possible to prevent the outflow of earth and sand, waste, water holding, and water-blocking materials, thereby blocking water.

次に、本発明が適用される目地材取付溝３に取り付ける他の目地材３０について説明する。
目地材３０は、例えば図２に示すように、両端の取付部３１，３１の間に伸縮する余長部３２がシート状の可撓性材料を環状に接続して構成されている。余長部３２は、環状の内部に中空部となる空間が形成される大環状部３２ａと、この大環状部３２ａの中央部にシート状の可撓性材料の中央部を重ねて連結するとともに、両端部を重ねて環状とされた小環状部３２ｂとで構成されている。
また、目地材３０の小環状部３２ｂの重ね合せ部分が一方の取付部３１とされ、大環状部３２ａの反対側の中央部に可撓性材料のシートを重ねて連結し、その端部が外側に突き出したもう一方の取付部３１とされる。そして、目地材３０は、長手方向には、ケーソン１の高さに応じた必要な長さに形成され、複数枚の可撓性材料のシートを接着などで連結することで製造される。
これにより、目地材３０は、想定される地震動として、例えばレベル２地震動に対する変位を許容する。
なお、目地材３０は、施工のため、施工後切断部が設けられる。 Next, another joint material 30 attached to the joint material attaching groove 3 to which the present invention is applied will be described.
As shown in FIG. 2, for example, the joint material 30 is formed by connecting a sheet-like flexible material in a ring shape with an extra length portion 32 that expands and contracts between the mounting portions 31 on both ends. The extra-length portion 32 is connected to a large annular portion 32a in which a hollow space is formed inside the annular portion, and a central portion of the sheet-like flexible material is overlapped with a central portion of the large annular portion 32a. , And a small annular portion 32b having both ends overlapped to form an annular shape.
The overlapping portion of the small annular portion 32b of the joint material 30 is used as one attachment portion 31. A sheet of a flexible material is overlapped and connected to the central portion on the opposite side of the large annular portion 32a. The other mounting portion 31 protrudes outward. The joint material 30 is formed in the longitudinal direction to a required length corresponding to the height of the caisson 1, and is manufactured by connecting a plurality of sheets of a flexible material by bonding or the like.
As a result, the joint material 30 allows a displacement with respect to, for example, a level 2 ground motion as the assumed ground motion.
In addition, the joint material 30 is provided with a post-construction cut portion for construction.

このように構成した目地材１０及び目地材３０は、ケーソン１，１間の目地部２に、目地材１０，３０を目地材取付溝３に挿し込み固定金具６を介して挿し込むようにして設置する。目地材取付溝３の空間３ｂには、膨張モルタルなどの充填材３ｃを充填して開口部３ａと目地材１０との間をシール状態とする。
また、目地材３０では、大環状部３２ａ内にアスファルトマスチックなどの中詰材３３が充填され、目地部２のケーソン１，１の表面に押し付けてシール状態とされる。
この後、２つの目地材１０，１０の間や２つの目地材３０，３０の間の目地部２に、これまでと同様に、目地部遮水材を充填する。
また、目地材１０，１０や目地材３０の底部の遮水性を向上するために、最大の変位が生じても目地材１０，３０のそれぞれの下端部が流動性遮水材に浸漬した状態となるようにしておく。すなわち、２つの目地材１０，１０の間や２つの目地材３０，３０の間の目地部２に底部の遮水性を確保するため、所定の高さまで流動性遮水材を充填しておき、流動性遮水材で遮水することもできる。流動性遮水材は、例えばアスファルト系、土質系、ケミカル系などの流動性のある遮水材が用いられる。具体的な流動性遮水材としては、例えば、アスファルトペーストを挙げることができる。 The joint material 10 and the joint material 30 configured as described above are installed in the joint portion 2 between the caissons 1 and 1 such that the joint materials 10 and 30 are inserted into the joint material attaching grooves 3 and inserted through the fixing brackets 6. . The space 3b of the joint material mounting groove 3 is filled with a filler 3c such as expanded mortar or the like, and the space between the opening 3a and the joint material 10 is sealed.
In the joint material 30, the large annular portion 32a is filled with a filling material 33 such as asphalt mastic, and is pressed against the surface of the caisson 1 or 1 of the joint portion 2 to be in a sealed state.
Thereafter, the joint portion 2 between the two joint members 10 and the joint member 2 between the two joint members 30 and 30 is filled with the joint portion impermeable material as in the past.
In addition, in order to improve the water shielding of the joints 10, 10 and the bottom of the joints 30, the lower ends of the joints 10, 30 are immersed in the fluid impermeable even if the maximum displacement occurs. I will keep it. That is, in order to secure the water barrier at the bottom of the joint portion 2 between the two joint materials 10 and 10 and between the two joint materials 30 and 30, the fluid waterproof material is filled up to a predetermined height, It is also possible to block water with a fluid barrier material. As the fluid impermeable material, for example, a fluid impermeable material such as asphalt, soil, or chemical is used. Specific examples of the fluid impermeable material include, for example, asphalt paste.

このような目地材１０，３０を設置した状態で、レベル１地震動を越えるレベル２地震動が発生すると、目地材１０では、１次止水材１１は破断されるものの２次止水材１２は、余長部１２ｂが伸長され、止水性が保持される。
また、目地材３０では、余長部３２の大環状部３２ａに小環状部３２ｂが繋がって１つの大きな環状部が形成され、これにより、止水性が確保される。
なお、２つの目地材１０，１０や目地材３０，３０の間に流動性遮水材を充填した場合には、目地材１０，３０のそれぞれの底部では、流動性遮水材がレベル２地震動に追随して流動し、伸長した目地材１０，３０の下端部を流動性遮水材に浸漬した状態とし、底部の遮水性を確保する。
これにより、想定した地震動、例えばレベル１を越えるレベル２地震動に対して瞬時の遮水性を目地材１０，３０と流動性遮水材で確保することができる。 When the level 2 ground motion exceeding the level 1 ground motion occurs in a state where such joint materials 10 and 30 are installed, in the joint material 10, the primary water blocking material 11 is broken, but the secondary water blocking material 12 is The extra length portion 12b is extended, and the water stoppage is maintained.
Further, in the joint material 30, one large annular portion is formed by connecting the small annular portion 32b to the large annular portion 32a of the extra-length portion 32, thereby ensuring water stopping.
When a fluid impermeable material is filled between the two joint materials 10, 10 and the joint materials 30, 30, the fluid impermeable material at the bottoms of the joint materials 10, 30 is a level 2 ground motion. The lower ends of the joint materials 10 and 30 that have flowed and stretched are immersed in the fluid impermeable material to ensure the water-impermeability at the bottom.
As a result, instantaneous water impermeability can be secured by the joint members 10 and 30 and the fluid impermeable material with respect to anticipated earthquake motion, for example, level 2 earthquake motion exceeding level 1.

次に、目地材取付溝３に目地材１０，３０を取り付けて遮水する本発明の目地材取付溝の遮水構造１００について、図３〜図６により、具体的に説明する。
目地材取付溝の遮水構造１００では、図３に示すように、溝遮水部材２０として板状溝遮水材２１が用いられており、開口部３ａと目地材１０，３０とに両側でそれぞれ接触させて開口部３ａを塞いで遮水する。
板状溝遮水材２１は、ゴムや織布、不織布等で構成され、目地材取付溝３の高さに対応する長さで、目地材取付溝３の空間３ｂに充填する膨張モルタルなどの充填材３ｃの負荷が加わっても開口部３ａを塞いだ状態を保持することができる幅とされている。
板状溝遮水材２１は、例えば図３（ａ）に示すように、目地材１０，３０の取付部１１ａ，１２ａ，３１に重ねて挿し込み固定金具６に取り付けられる。また、板状溝遮水材２１は、例えば図３（ｂ）に示すように、目地部２内に位置する目地材１０，３０の余長部１２ｂ，３２側に接着などで取り付けられている。
これら板状溝遮水材２１は、目地材１０，３０の目地材取付溝３への挿し込みと同時に設置され、板状溝遮水材２１が開口部３ａの内面に接触することで、開口部３ａと目地材１０，３０とに両側でそれぞれ接触することで、開口部３ａを塞いで遮水する。
このような板状溝遮水材２１を設けることで、目地材取付溝３の開口部３ａは、完全にシールされ、充填材３ｃの漏洩を防止することができ、遮水することができる。 Next, the water blocking structure 100 of the joint material mounting groove of the present invention, in which the joint materials 10 and 30 are attached to the joint material mounting groove 3 to block water, will be specifically described with reference to FIGS.
In the water blocking structure 100 of the joint material mounting groove, as shown in FIG. 3, a plate-shaped groove water blocking material 21 is used as the groove water blocking member 20, and both sides of the opening 3a and the joint materials 10, 30 are provided. The openings 3a are brought into contact with each other to block water.
The plate-shaped groove water-impervious material 21 is made of rubber, woven fabric, non-woven fabric, or the like, and has a length corresponding to the height of the joint material attachment groove 3, such as an expanded mortar filled in the space 3 b of the joint material attachment groove 3. The width is set such that the opening 3a can be kept closed even when a load of the filler 3c is applied.
As shown in FIG. 3 (a), for example, the plate-shaped groove water-impermeable material 21 is inserted into the fixing portions 6 of the joint members 10, 30 so as to overlap with the mounting portions 11a, 12a, 31. In addition, as shown in FIG. 3B, for example, the plate-shaped groove water-impermeable material 21 is attached to the extra-length portions 12b, 32 of the joint materials 10, 30 located in the joint portion 2 by bonding or the like. .
These plate-like groove water-impervious materials 21 are installed at the same time as the joint materials 10 and 30 are inserted into the joint material mounting grooves 3, and the plate-like groove water-impervious materials 21 come into contact with the inner surface of the opening 3 a, thereby opening the joints. By contacting the portion 3a and the joint members 10 and 30 on both sides, the opening 3a is closed to block water.
By providing such a plate-shaped groove water-blocking material 21, the opening 3a of the joint material mounting groove 3 is completely sealed, so that leakage of the filler 3c can be prevented and water can be blocked.

さらに、溝遮水部材２０は、図４に示すように、目地材取付溝３に予め取り付けておく板状溝遮水材２２で構成することもできる。
この板状溝遮水材２２は、板状溝遮水材２１と同様に、ゴムや織布、不織布等で構成され、目地材取付溝３の高さに対応する長さで、目地材取付溝３の空間３ｂに充填する膨張モルタルなどの充填材３ｃの負荷が加わっても開口部３ａを塞いだ状態を保持することができる幅とされている。
板状溝遮水材２２は、例えば図４（ａ）に示すように、目地材取付溝３の開口部３ａを挟む空間３ｂの内側に対向して取り付けられる。したがって、目地材取付溝３の開口部３ａを、図１に示した板材５を別体として設けて形成するようにしておき、別体とした２枚の板材５の内側にそれぞれ板状溝遮水材２２をシール状態でボルト・ナットや接着剤など取り付けることが、施工上好ましい。
こうして予め目地材取付溝３に板状溝遮水材２２を取り付けた状態で、目地材１０，３０を目地材取付溝３に挿し込んでいき、板状溝遮水材２２の先端部が空間３ｂ内で目地材１０，３０に接触するようにする。
こうすることで、板状溝遮水材２２が開口部３ａの内側で目地材１０，３０にそれぞれ接触することで、開口部３ａを塞いで遮水する。
このような板状溝遮水材２２を設けることで、目地材取付溝３の開口部３ａは、完全にシールされ、充填材３ｃの漏洩を防止することができ、遮水することができる。 Further, as shown in FIG. 4, the groove water-impervious member 20 may be formed of a plate-shaped groove water-impervious material 22 previously attached to the joint material attaching groove 3.
Like the plate-shaped groove water-impervious material 21, the plate-shaped groove water-impervious material 22 is made of rubber, woven fabric, non-woven fabric, or the like. The width is set such that the opening 3a can be kept closed even when a load of the filler 3c such as the expanding mortar filling the space 3b of the groove 3 is applied.
For example, as shown in FIG. 4A, the plate-shaped groove water barrier 22 is attached to face the inside of the space 3 b sandwiching the opening 3 a of the joint material attachment groove 3. Therefore, the opening 3a of the joint material mounting groove 3 is formed by separately providing the plate member 5 shown in FIG. 1 and is provided inside the two separate plate members 5 respectively. It is preferable in construction to attach the water material 22 in a sealed state with bolts and nuts or an adhesive.
With the plate-shaped groove waterproofing material 22 previously attached to the jointing material mounting groove 3 in this way, the jointing materials 10 and 30 are inserted into the jointing material mounting groove 3 so that the distal end portion of the plate-like groove waterproofing material 22 becomes a space. It is made to contact the joint members 10 and 30 within 3b.
By doing so, the plate-shaped groove water blocking material 22 comes into contact with the joint members 10, 30 inside the opening 3a, thereby closing the opening 3a and blocking water.
By providing such a plate-like groove water-blocking material 22, the opening 3a of the joint material mounting groove 3 is completely sealed, so that leakage of the filler 3c can be prevented, and water can be blocked.

また、溝遮水部材２０は、例えば図５に示すように、円筒状溝遮水材２３で構成することができる。
この円筒状溝遮水材２３は、ゴムや織布、不織布等で円筒状に構成され、目地材取付溝３の高さに対応する長さとされ、円筒状の中空内部に充填材（中詰材）２３ａを充填することで膨らみ、目地材取付溝３の空間３ｂに充填する膨張モルタルなどの充填材３ｃの負荷が加わっても開口部３ａを塞いだ状態を保持することができるように形成されている。
円筒状溝遮水材２３は、例えば図５に示すように、目地材取付溝３の開口部３ａを挟む空間３ｂの内側に対向して挿し込み固定金具６や目地材１０，３０に接着剤などで取り付けられる。
こうして予め挿し込み固定金具６や目地材１０，３０に円筒状溝遮水材２３を取り付けた状態で、目地材取付溝３に挿し込み固定金具６を挿し込んで行き、円筒状溝遮水材２３が目地材取付溝３の開口部３ａの外側、開口部３ａの間、あるいは、開口部３ａの内側（目地材取付溝３内）に位置する状態とする。すなわち、円筒状溝遮水材２３が開口部３ａを中心とする内外に位置するようにしておく。
そして、円筒状溝遮水材２３の中空内部に充填材（中詰材）２３ａを充填して膨らませ、目地材１０，３０に接触させて開口部３ａを塞いでシール状態とする。
こうすることで、円筒状溝遮水材２３が開口部３ａの外側（図５（ａ）参照）、開口部３ａの間（図５（ｂ）参照）、あるいは、開口部３ａの内側（図５（ｃ）参照）のいずれかの状態で、目地材１０，３０にそれぞれ接触することで、開口部３ａを塞いで遮水する。
このような円筒状溝遮水材２３を設けて充填材（中詰材）２３ａを充填することで、目地材取付溝３の開口部３ａは、完全にシールされ、充填材３ｃの漏洩を防止することができ、遮水することができる。 Moreover, the groove | channel water-impermeable member 20 can be comprised by the cylindrical groove | channel water-impermeable material 23, as shown in FIG. 5, for example.
The cylindrical groove water-impervious material 23 is made of rubber, woven fabric, non-woven fabric, or the like, and has a length corresponding to the height of the joint material attachment groove 3. 23a is formed by filling the space 3b of the joint material mounting groove 3 so that the opening 3a can be kept closed even when a load of a filler 3c such as expanded mortar is applied to the space 3b of the joint material mounting groove 3. Have been.
As shown in FIG. 5, for example, as shown in FIG. 5, the cylindrical groove water-impermeable material 23 is inserted into the space 3b sandwiching the opening 3a of the joint material mounting groove 3 so as to face the fixing metal 6 and the joint materials 10, 30 with an adhesive. It can be attached with.
With the cylindrical groove water-impervious material 23 attached to the insertion fixing metal member 6 and the joint members 10 and 30 in advance in this way, the fixing metal member 6 is inserted into the joint material attaching groove 3 and goes into the cylindrical groove water-impermeable member member. 23 is located outside the opening 3a of the joint material attachment groove 3, between the openings 3a, or inside the opening 3a (inside the joint material attachment groove 3). That is, the cylindrical groove water-impermeable material 23 is positioned inside and outside with the opening 3a as the center.
Then, a filling material (filling material) 23a is filled into the hollow interior of the cylindrical grooved water shielding material 23 to expand it, and is brought into contact with the joint members 10 and 30, thereby closing the opening 3a to be in a sealed state.
In this way, the cylindrical groove water-impervious material 23 is outside the opening 3a (see FIG. 5A), between the openings 3a (see FIG. 5B), or inside the opening 3a (see FIG. 5B). 5 (c)), by contacting the joint members 10 and 30, respectively, to close the opening 3a and block water.
By providing such a cylindrical groove waterproofing material 23 and filling the filling material (filling material) 23a, the opening 3a of the joint material mounting groove 3 is completely sealed and the leakage of the filling material 3c is prevented. And can be impermeable.

次に、本発明の目地材取付溝の遮水構造１００が適用される目地材取付溝３には、図６〜図８に示すように、ガイド部材４０が設けられる。
次に、本発明の目地材取付溝の遮水構造１００が適用される目地材取付溝３には、図６に示すように、ガイド部材４０が設けられる。
ガイド部材４０は、目地材取付溝３の溝背面および／または溝側面に、目地材１０，３０の取り付け位置を前方および／または側方にガイドするためのものである。すなわち、ガイド部材４０は、背面ガイド材４１と図示しない側面ガイド材とを単独に設けたり、これらを組み合わせて目地材取付溝３の背面と側面とに取り付けて構成される。
ガイド部材４０は、図示例のように、目地材取付溝３の背面だけに背面ガイド材４１を設けて構成し、挿し込み固定金具６を開口部３ａ側に寄せるようにして目地材１０，３０および溝遮水部材２０（図６では図示せず（図３〜５参照））を所定の位置に誘導する。
ガイド部材４０は、目地材取付溝３の下端部に向かって前方に突き出すような傾斜面を備えて構成される。また、ガイド部材４０は、目地材取付溝３の上下方向に１個所だけでなく、複数個所に設置するようにしても良く、この場合も下端部に近いものほど、前方に突き出す高さを高くするようにする。
このようなガイド部材４０を背面ガイド材４１だけで構成し、目地材取付溝３の背面だけに背面ガイド材４１を設置すれば、施工途中においては、図７に示すように、背面ガイド材４１によって挿し込み固定金具６をガイドしながら挿入することができる。そして、施工完了状態では、図８に示すように、下端部の背面ガイド材４１によって挿し込み固定金具６を開口部３ａ側に寄せて目地材１０，３０を設置することができ、溝遮水部材２０（図６〜図８では図示せず（図３〜５参照））の位置が一定となり、開口部３ａのシールが安定し、遮水性も一層向上することができる。
また、側面ガイド材を目地材取付溝３の側面の両側に設置すれば、挿し込み固定金具６を開口部３ａの中央に目地材１０，３０を設置することができ、溝遮水部材２０の位置が一定となり、開口部３ａのシールが安定し、遮水性も一層向上することができる。
さらに、背面ガイド材４１と側面ガイド材とを目地材取付溝３の背面と、目地材取付溝３の側面の両側に設置すれば、挿し込み固定金具６を開口部３ａ側に寄せて目地材１０，３０を設置することができるとともに、挿し込み固定金具６を開口部３ａの中央に位置させて目地材１０，３０を設置することができ、溝遮水部材の前後及び左右の位置が一定となり、開口部３ａのシールが安定し、遮水性も一層向上することができる。 Next, as shown in FIGS. 6 to 8, a guide member 40 is provided in the joint material mounting groove 3 to which the joint material mounting groove water shielding structure 100 of the present invention is applied.
Next, as shown in FIG. 6, a guide member 40 is provided in the joint material mounting groove 3 to which the joint material mounting groove water shielding structure 100 of the present invention is applied.
The guide member 40 guides the mounting positions of the joint members 10 and 30 forward and / or sideward on the groove back surface and / or the groove side surface of the joint material attaching groove 3. That is, the guide member 40 is configured such that the rear guide member 41 and the side guide member (not shown) are provided independently, or they are combined and attached to the back and side surfaces of the joint material attachment groove 3.
The guide member 40 is provided with a rear guide member 41 provided only on the back surface of the joint material mounting groove 3 as shown in the figure, and the joint members 10 and 30 are arranged so that the insertion fixing metal member 6 is moved toward the opening 3a. And the groove | channel water impermeable member 20 (not shown in FIG. 6 (refer FIGS. 3-5)) is guided to a predetermined position.
The guide member 40 has an inclined surface that protrudes forward toward the lower end of the joint material mounting groove 3. In addition, the guide member 40 may be installed not only at one position in the vertical direction of the joint material mounting groove 3 but also at a plurality of positions. In this case as well, the closer to the lower end portion, the higher the height protruding forward. To do it.
If such a guide member 40 is constituted only by the back guide member 41 and the back guide member 41 is installed only on the back of the joint material mounting groove 3, during the construction, as shown in FIG. Accordingly, the insertion fixture 6 can be inserted while being guided. In the completed state of the construction, as shown in FIG. 8, the joint members 10 and 30 can be installed by inserting the fixing bracket 6 toward the opening 3 a side by the rear guide member 41 at the lower end, and installing the groove water shield. The position of the member 20 (not shown in FIGS. 6 to 8 (see FIGS. 3 to 5)) becomes constant, the seal of the opening 3a is stabilized, and the water shielding can be further improved.
Further, if the side guide members are installed on both sides of the side surface of the joint mounting groove 3, the joint fittings 6 and 30 can be installed at the center of the opening 3a. The position is fixed, the seal of the opening 3a is stabilized, and the water shielding can be further improved.
Furthermore, if the back guide material 41 and the side guide material are installed on the back surface of the joint material mounting groove 3 and on both sides of the joint material mounting groove 3, the insertion fixture 6 is moved to the opening 3a side, and the joint material is moved. 10 and 30 can be installed, and the joint fixing members 6 can be located at the center of the opening 3a so that the joint members 10 and 30 can be installed. Thus, the seal of the opening 3a is stabilized, and the water shielding property can be further improved.

さらに、目地材取付溝の遮水構造１００では、目地材取付溝３の底部分を塞ぎ、底部分に溝底部遮水材２４を設けてある。溝底部遮水材２４は、発泡ウレタンや液状ゴムなどが用いられ、目地材取付溝３の製作時に充填敷設される。
こうすることで、目地材取付溝３の底部から、空間３ｂ内に充填した膨張モルタルなどの充填材３ｃが漏洩することを防止できる。 Further, in the water blocking structure 100 of the joint material mounting groove, the bottom part of the joint material mounting groove 3 is closed, and the groove bottom water shielding material 24 is provided at the bottom part. The groove bottom waterproofing material 24 is made of urethane foam or liquid rubber, and is filled and laid when the joint material mounting groove 3 is manufactured.
By doing so, it is possible to prevent the filler 3c such as the expanded mortar filled in the space 3b from leaking from the bottom of the joint material attachment groove 3.

以上、実施の形態とともに、説明したように、本発明の目地材取付溝の遮水構造１００によれば、目地部２を挟んで配置され構造物であるケーソン１，１に設けられた開口部３ａを有する目地材取付溝３に、目地部２を跨いで目地材１０の両端部を目地材取付溝３の開口部３ａから挿入固定する目地材取付溝の遮水構造１００であって、開口部３ａと目地材１０との間に、それぞれ開口部３ａと目地材１０とに接して遮水する溝遮水部材２０を備え、目地材取付溝３は、溝背面および／または溝側面に、目地材の取り付け位置を前方および／または側方にガイドするガイド部材を備えているので、溝遮水部材２０が開口部３ａと目地材１０とに両側でそれぞれ接触することで、開口部３ａを完全にシールすることができ、目地材取付溝３内に充填された充填材３ｃの漏洩を防止することができ、遮水することができる。これにより、目地材１０が取り付けられる目地材取付溝３を介して土砂、廃棄物、保有水、遮水材などが回り込んで流出することを防止して確実に遮水することができる。また、目地材取付溝３は、溝背面および／または溝側面に、目地材１０，３０の取り付け位置を前方および／または側方にガイドするガイド部材４０を備えているので、ガイド部材４０によって挿し込み固定金具６を開口部３ａ側に寄せたり、開口部３ａの中央に配置することができ、目地材１０，３０および溝遮水部材２０を所定の位置にすることができる。これにより、一層確実に開口部３ａをシールして遮水することができる。
本発明の目地材取付溝の遮水構造１００によれば、目地部２を挟んで配置され構造物であるケーソン１，１に設けられた開口部３ａを有する目地材取付溝３に、目地部２を跨いで目地材１０の両端部を目地材取付溝３の開口部３ａから挿入固定する目地材取付溝の遮水構造１００であって、開口部３ａと目地材１０との間に、それぞれ開口部３ａと目地材１０とに接して遮水する溝遮水部材２０を備え、目地材取付溝３は、底部が塞がれて溝底部遮水材２４が設けられているので、溝遮水部材２０が開口部３ａと目地材１０とに両側でそれぞれ接触することで、開口部３ａを完全にシールすることができ、目地材取付溝３内に充填された充填材３ｃの漏洩を防止することができ、遮水することができる。これにより、目地材１０が取り付けられる目地材取付溝３を介して土砂、廃棄物、保有水、遮水材などが回り込んで流出することを防止して確実に遮水することができる。また、目地材取付溝３は、底部が塞がれて溝底部遮水材２４が設けられているので、目地材取付溝３の底部から、空間３ｂ内に充填した膨張モルタルなどの充填材３ｃが漏洩することを防止できる。これにより、一層確実に目地材取付溝３をシールして遮水することができる。
また、本発明の目地材取付溝の遮水構造１００によれば、ガイド部材４０に加えて溝底部遮水材２４が設けられることで、ガイド部材４０によって挿し込み固定金具６を開口部３ａ側に寄せたり、開口部３ａの中央に配置することができ、目地材１０，３０および溝遮水部材２０を所定の位置にすることができる。さらに、溝底部遮水材２４によって目地材取付溝３の底部から、空間３ｂ内に充填した膨張モルタルなどの充填材３ｃが漏洩することを防止できる。これにより、一層確実に目地材取付溝３をシールして遮水することができる。 As described above with the embodiment, as described above, according to the water-blocking structure 100 of the joint material mounting groove of the present invention, the opening provided in the caisson 1, 1 which is disposed with the joint 2 interposed therebetween. A joint structure mounting groove 3 having the joint material mounting groove 3, wherein both ends of the joint material 10 are inserted and fixed from the opening 3 a of the joint material mounting groove 3 while straddling the joint 2. Between the portion 3a and the joint material 10, there is provided a groove water-blocking member 20 that comes into contact with the opening 3a and the joint material 10 to block water , and the joint material mounting groove 3 is provided on a groove rear surface and / or a groove side surface. Since the guide member is provided to guide the mounting position of the joint material forward and / or sideward , the groove waterproofing member 20 comes into contact with the opening 3a and the joint material 10 on both sides, so that the opening 3a is formed. It can be completely sealed and is in the joint material mounting groove 3. It is possible to prevent the Hama been leakage of filler 3c, it can be water-impervious. Thereby, it is possible to prevent earth and sand, waste, water holding, a water-blocking material, etc. from flowing around and flowing out through the joint material mounting groove 3 in which the joint material 10 is mounted, and to reliably block water. The joint material mounting groove 3 has a guide member 40 for guiding the mounting position of the joint materials 10 and 30 forward and / or laterally on the groove back surface and / or the groove side surface. The fixing fixture 6 can be moved toward the opening 3a side, or can be arranged at the center of the opening 3a, and the joint members 10, 30 and the groove water shielding member 20 can be set at predetermined positions. Thereby, it is possible to more reliably seal the opening 3a to block water.
According to the joint material mounting groove water-blocking structure 100 of the present invention, the joint material mounting groove 3 having the opening 3a provided in the caisson 1 or 1 which is disposed between the joint portions 2 is provided with the joint material. A joint material mounting groove water-blocking structure 100 for inserting and fixing both ends of the joint material 10 from the opening 3a of the joint material mounting groove 3 across the joint 2 and between the opening 3a and the joint material 10, respectively. The groove member 20 is provided with a groove water-blocking member 20 that is in contact with the opening 3a and the joint member 10 to block the water. Since the water member 20 is in contact with the opening 3a and the joint material 10 on both sides, the opening 3a can be completely sealed, and the leakage of the filler 3c filled in the joint material mounting groove 3 is prevented. And can be impermeable. Thereby, it is possible to prevent earth and sand, waste, water holding, a water-blocking material, etc. from flowing around and flowing out through the joint material mounting groove 3 in which the joint material 10 is mounted, and to reliably block water. Since the joint material mounting groove 3 is closed at the bottom and provided with a groove bottom waterproof material 24, the filler material 3c such as expanded mortar or the like filled in the space 3b is filled from the bottom of the joint material mounting groove 3. Can be prevented from leaking. Thereby, the joint material mounting groove 3 can be more reliably sealed and water-shielded.
Further, according to the joint structure mounting groove water shielding structure 100 of the present invention, since the groove bottom water shielding material 24 is provided in addition to the guide member 40, the fixing metal member 6 is inserted by the guide member 40 so that the fixing metal member 6 is closer to the opening 3a. And the joint members 10 and 30 and the groove waterproofing member 20 can be located at predetermined positions. In addition, the groove bottom waterproofing member 24 can prevent the filler 3c such as the expanded mortar filled in the space 3b from leaking from the bottom of the joint material mounting groove 3. Thereby, the joint material mounting groove 3 can be more reliably sealed and water-shielded.

本発明の目地材取付溝の遮水構造１００によれば、溝遮水部材２０は、開口部３ａの両側にそれぞれ配置される板状溝遮水材２１で構成されているので、板状溝遮水材２１が開口部３ａの内側で目地材１０，３０にそれぞれ接触することで、開口部３ａを塞いで遮水することができ、目地材取付溝３の開口部３ａは、完全にシールされ、充填材３ｃの漏洩を防止することができ、遮水することができる。これにより、目地材１０、３０が取り付けられる目地材取付溝３を介して土砂、廃棄物、保有水、遮水材などが回り込んで流出することを防止して確実に遮水することができる。 According to the water-blocking structure 100 of the joint material mounting groove of the present invention, since the groove water-blocking member 20 is constituted by the plate-shaped groove water-blocking members 21 arranged on both sides of the opening 3a, the plate-shaped groove is formed. When the water blocking material 21 contacts the joint members 10 and 30 inside the opening 3a, the opening 3a can be closed and blocked, and the opening 3a of the joint material mounting groove 3 is completely sealed. Thus, leakage of the filler 3c can be prevented, and water can be blocked. Thereby, it is possible to prevent the earth and sand, waste, water holding, water barrier material and the like from going around and flowing out through the joint material mounting groove 3 to which the joint materials 10 and 30 are mounted, and to reliably block water. .

本発明の目地材取付溝の遮水構造１００によれば、溝遮水部材２０は、開口部３ａの両側にそれぞれ配置され中空部を有して充填材（中詰材）２３ａが充填される円筒状溝遮水材２３で構成されているので、円筒状溝遮水材２３を設けて充填材（中詰材）２３ａを充填することで、目地材取付溝３の開口部３ａは、完全にシールされ、充填材３ｃの漏洩を防止することができ、遮水することができる。これにより、目地材１０、３０が取り付けられる目地材取付溝３を介して土砂、廃棄物、保有水、遮水材などが回り込んで流出することを防止して確実に遮水することができる。 According to the water-blocking structure 100 of the joint material mounting groove of the present invention, the groove water-blocking members 20 are respectively disposed on both sides of the opening 3a, have hollow portions, and are filled with the filler (filling material) 23a. Since the opening 3a of the joint material attachment groove 3 is completely formed by providing the cylindrical groove water-impervious material 23 and filling the filling material (filling material) 23a since the cylindrical groove water-impervious material 23 is provided. To prevent leakage of the filler 3c, and to block water. Thereby, it is possible to prevent the earth and sand, waste, water holding, water barrier material and the like from going around and flowing out through the joint material mounting groove 3 to which the joint materials 10 and 30 are mounted, and to reliably block water. .

なお、上記実施の形態では、目地材１０と目地材３０を例に説明したが、目地材１０や目地材３０の形状は、上記のものに限らず、両端部に取付部を備え、これらをつないで変位に追従できる余長部、あるいは伸縮部が設けられるものであれば、どのような形状や材料であっても良い。
また、上記実施の形態では、ケーソンで、目地材を取り付ける目地材取付溝の遮水に適用する場合で説明したが、ケーソンに限らず他の構造物の目地材取付溝の遮水にも同様に適用することができる。 In the above-described embodiment, the joint material 10 and the joint material 30 have been described as examples. However, the shape of the joint material 10 and the joint material 30 is not limited to the above-described shape, and mounting portions are provided at both ends. Any shape or material may be used as long as it is provided with an extra length portion or a telescopic portion that can be connected and follow the displacement.
Further, in the above-described embodiment, a case has been described in which the caisson is applied to imperviousness of the jointing material mounting groove for attaching the jointing material. Can be applied to

目地材の下端は、背面ガイド材で目地間側で押し付けられ、上端は挿し込み固定金具と溝部を万力等で押さえつけ、遮水することができる。これらは、図３〜５の方法と組み合わせて実施しても良い。 The lower end of the joint material is pressed against the joint between the joints by the back guide material, and the upper end can be inserted into the fixing metal fitting and the groove portion with a vice or the like to block water. These may be implemented in combination with the methods of FIGS.

１００目地材取付溝の遮水構造
１ケーソン（構造物）
１ａ端面
２目地部
３，３目地材取付溝
３ａ，３ａ開口部
３ｂ，３ｂ空間
３ｃ充填材
４凹部
５板材
６挿し込み固定金具
７ボルト・ナット
１０目地材
１１１次止水材
１１ａ取付部
１２２次止水材
１２ａ取付部
１２ｂ余長部
２０溝遮水部材
２１板状溝遮水材
２２板状溝遮水材
２３円筒状溝遮水材
２３ａ充填材（中詰材）
２４溝底部遮水材
３０目地材
３１取付部
３２余長部
３２ａ大環状部
３２ｂ小環状部
３３中詰材
４０ガイド部材
４１背面ガイド材 100 Water impervious structure of joint groove 1 Caisson (structure)
1a End face 2 Joint 3, 3 Joint mounting groove 3a, 3a Opening 3b, 3b Space 3c Filler 4 Concave 5 Plate 6 Inserting fixture 7 Bolt / nut 10 Joint 11 Primary water-stopping material 11a Mounting section 12 Secondary water-stopping material 12a Mounting portion 12b Extra length 20 Groove water-blocking member 21 Plate-shaped groove water-blocking material 22 Plate-shaped groove water-blocking material 23 Cylindrical groove water-blocking material 23a Filling material (filling material)
24 Groove bottom water-blocking material 30 Joint material 31 Mounting part 32 Extra length part 32a Large annular part 32b Small annular part 33 Filling material 40 Guide member 41 Back guide material

Claims

A joint material that inserts and fixes both ends of the joint material from the opening of the joint material attaching groove across the joint in a joint material attaching groove having an opening provided in the structure and arranged with the joint portion interposed therebetween. Water-blocking structure of the mounting groove,
Between the opening and the joint material, provided with a groove water-blocking member that contacts with the opening and the joint material to block water ,
The joint member mounting groove, the groove rear and / or groove flanks, Ru provided with a guide member for guiding the mounting position of the joint member to the front and / or side,
A water-blocking structure for joint material mounting grooves.

A joint material that inserts and fixes both ends of the joint material from the opening of the joint material attaching groove across the joint in a joint material attaching groove having an opening provided in the structure and arranged with the joint portion interposed therebetween. Water-blocking structure of the mounting groove,
Between the opening and the joint material, provided with a groove water-blocking member that contacts with the opening and the joint material to block water ,
The joint member mounting groove, Ru provided with a groove bottom water-impervious material bottom is closed,
A water-blocking structure for joint material mounting grooves.

The joint material mounting groove is provided with a groove bottom waterproof material with a closed bottom.
The water-blocking structure of the joint material mounting groove according to claim 1, wherein:

The groove water-impervious member is formed of a plate-shaped groove water-impervious material disposed on both sides of the opening,
The water-blocking structure for a joint material mounting groove according to any one of claims 1 to 3, wherein:

The groove water-impervious member is configured by a cylindrical groove water-impervious material that is disposed on both sides of the opening and has a hollow portion and is filled with a filling material.
The water-blocking structure for a joint material mounting groove according to any one of claims 1 to 4, wherein: