JP6584314B2 - Leakage receiving structure in tunnel structure - Google Patents
Leakage receiving structure in tunnel structure Download PDFInfo
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- JP6584314B2 JP6584314B2 JP2015245905A JP2015245905A JP6584314B2 JP 6584314 B2 JP6584314 B2 JP 6584314B2 JP 2015245905 A JP2015245905 A JP 2015245905A JP 2015245905 A JP2015245905 A JP 2015245905A JP 6584314 B2 JP6584314 B2 JP 6584314B2
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Description
本発明は、隧道や地下道等のトンネル構造物における漏水受樋構造に関するものである。 The present invention relates to a water leak receiving structure in a tunnel structure such as a tunnel or an underpass.
コンクリートその他の材料でライニングされた隧道や地下道等のトンネル構造物においては、外圧により内壁面に亀裂が入ることがある。また、ライニングの接合個所の施工が不十分であったり、コンクリートの伸縮により該接合個所に隙間ができることによって隧道等の内面から水漏れが生ずることもある。
このような場合、従来は亀裂部位や隙間部位にモルタルの吹付施工を施したり、または、水漏れ部分の内面に溝を掘り込んで盲排水溝を設けることによって処理していた。更には、内壁面に樋を張りつけて漏水を導水処理する等の方法も採用されている。しかし、このような工法は水漏れ部位が明確で、かつ集中して水漏れする場合は有効であるが、トンネル構造物の内面で広範囲に亘り水漏れが点在する場合や、全面的に漏水するような場合のトンネル構造物の内面からの水漏れ処理には有効とは言えない。
In tunnel structures such as tunnels and underpasses lined with concrete or other materials, cracks may occur in the inner wall surface due to external pressure. In addition, the construction of the joint portion of the lining may be insufficient, or a gap may be formed at the joint portion due to the expansion and contraction of the concrete, thereby causing water leakage from the inner surface of the tunnel or the like.
In such a case, conventionally, the mortar was sprayed on the cracked part or the gap part, or the groove was dug into the inner surface of the water leaking part to provide a blind drainage groove. Furthermore, a method is also adopted in which a leak is attached to the inner wall surface to conduct water leakage. However, such a construction method is effective when the water leaking part is clear and the water leaks in a concentrated manner, but when the water leaks are scattered over a wide area on the inner surface of the tunnel structure, In such a case, it cannot be said to be effective for water leakage treatment from the inner surface of the tunnel structure.
このような問題点を解決する手段として、特許文献１に示されるような漏水用導水樋が提案されている。しかしながら、この導水樋によるときには、アンカーボルトのネジ軸部分に螺締されたナットが、導水樋の表面側に大きく突出する状態で連結部材の長さ方向に数多く露出状態となり、隧道や地下道等の構造物内部の美観が損なわれるという問題があった。 As a means for solving such a problem, a water leakage conduit as shown in Patent Document 1 has been proposed. However, when using this water conduit, the nuts screwed to the threaded shafts of the anchor bolts are largely exposed in the length direction of the connecting member in a state of projecting greatly to the surface side of the water conduit, so There was a problem that the aesthetics inside the structure was damaged.
そこで、図７に示されるように、導水路３０を形成する漏水受板３１の端縁部分を挿入させるための外挿入溝３５と、収容溝３２を閉蓋する硬質合成樹脂製のカバー板３３の両端縁部分を挿入させるための内挿入溝３６を設けた連結部材３４を用い、固定具３７を構成するボルト３７ａやナット３７ｂが収容された状態の収容溝３２が前記カバー板３３で閉蓋されるようにした漏水受樋構造が提案されている（特許文献２を参照）。
しかしながら、特許文献２に示されるものでは、ボルト３７ａ等を伝って落下した水が、少量ではあるがカバー板３３の端縁部分を通過して下へ漏れる現象が生じるという問題のあることが判明した。
Therefore, as shown in FIG. 7, an outer insertion groove 35 for inserting the edge portion of the water leakage receiving plate 31 forming the water conduit 30 and a cover plate 33 made of hard synthetic resin for closing the housing groove 32. Using the connecting member 34 provided with the inner insertion groove 36 for inserting the both end edge portions of the housing, the housing groove 32 in the state where the bolt 37a and the nut 37b constituting the fixture 37 are housed is closed by the cover plate 33. There has been proposed a water leak receiving structure (see Patent Document 2).
However, the one disclosed in Patent Document 2 reveals that there is a problem that a small amount of water that has fallen through the bolt 37a or the like passes through the edge portion of the cover plate 33 and leaks downward. did.
本発明は上記のような問題点を解決して、収容溝をカバー板で閉蓋してボルトやナットの固定具を目隠しすることができ、またボルト等を伝って落下した水がカバー板の端縁部分を通過して下へ漏れるのを確実に防止することができるトンネル構造物における漏水受樋構を提供することを目的とするものである。 The present invention solves the above-described problems, and can close the housing groove with the cover plate to hide the bolts and nuts, and the water that has fallen through the bolts or the like can be removed from the cover plate. It is an object of the present invention to provide a water leakage receiving mechanism in a tunnel structure that can reliably prevent leakage through the end edge portion.
上記課題を解決するためになされた本発明のトンネル構造物における漏水受樋構造は、壁面に沿って固定される板状の連結部材本体の幅方向両側に左右一対の角筒状の保持部を有するとともに、この保持部間に固定具を収容するための収容溝を有し、また前記保持部の外面側には外挿入溝を有する一方、保持部の内面側には内挿入溝を有する連結部材を用いたトンネル構造物における漏水受樋構造であって、
前記連結部材をトンネル構造物の壁面に固定具により所要間隔で平行に固定し、
隣り合う連結部材の対向する外挿入溝に漏水受板の端縁部分を挿入するとともに、この漏水受板が前記保持部にビス止めされた状態として、漏水受板とトンネル構造物の壁面との間に第１の導水路を形成し、
一方、カバー板を裏面側の左右側縁部に堰部が突設されたものとして、このカバー板の両端縁部分を前記対向する内挿入溝にフリーな状態で挿入して前記収容溝を閉蓋したうえ、カバー板と堰部とトンネル構造物の壁面との間に第２の導水路を形成したことを特徴とするものである。
The water leakage receiving structure in the tunnel structure of the present invention, which has been made to solve the above problems, has a pair of left and right rectangular tube-shaped holding portions on both sides in the width direction of a plate-like connecting member body fixed along the wall surface. And a holding groove for holding the fixture between the holding portions, and an outer insertion groove on the outer surface side of the holding portion, and an inner insertion groove on the inner surface side of the holding portion. A leak receiving structure in a tunnel structure using a member,
The connecting member is fixed to the wall surface of the tunnel structure in parallel at a required interval by a fixture,
While inserting the edge portion of the water leakage receiving plate into the opposing outer insertion groove of the adjacent connecting member, the water leakage receiving plate is screwed to the holding portion, and the water leakage receiving plate and the wall surface of the tunnel structure are Forming a first waterway between them,
On the other hand, as the dam portion of the cover plate to the left and right side edge portions of the back side is projected, the housing groove and both edges of the cover plate is inserted in a free state within the insertion groove said opposing closed In addition, the second water conduit is formed between the cover plate, the dam portion, and the wall surface of the tunnel structure after the lid is covered.
また、好ましい実施形態によれば、収容溝の側壁面を、壁面に向けて徐々に開口幅が小さくなる傾斜面としたものが好ましい。 According to a preferred embodiment, it is preferable that the side wall surface of the housing groove is an inclined surface whose opening width gradually decreases toward the wall surface.
また、その他の好ましい実施形態によれば、漏水受板はシール材とともにビス止めして保持部に取り付けてあり、一方、カバー板はフリーな状態で保持部に取り付けてあるものが好ましい。 Further, according to another preferred embodiment, the water leakage receiving plate is screwed together with the sealing material and attached to the holding portion, while the cover plate is preferably attached to the holding portion in a free state.
また、その他の好ましい実施形態によれば、連結部材本体の裏面に、止水材とシール材が付設してあるものが好ましい。 Moreover, according to other preferable embodiment, the thing to which the water stop material and the sealing material were attached to the back surface of the connection member main body is preferable.
請求項１に係る発明では、外挿入溝に漏水受板の端縁部分を挿入するとともに、この漏水受板が保持部にビス止めされた状態で第１の導水路を形成したので、前記漏水受板がしっかりと固定されて丈夫な第１の導水路が形成される。一方、第２の導水路はカバー板の両端縁部分を内挿入溝にフリーな状態で挿入した構造であり、ビス止め等の後工程がなく簡単に形成することができる。また、前記カバー板の裏面側の左右側縁部には堰部が突設されており、ボルト等を伝ってカバー板上へ落下した水は堰部に堰き止められるため、従来のようにカバー板の端縁部分を通過して下へ漏れるのを防止することができる。 In the invention according to claim 1, since the edge portion of the water leakage receiving plate is inserted into the outer insertion groove and the first water conduit is formed with the water leakage receiving plate screwed to the holding portion, the water leakage The receiving plate is firmly fixed to form a strong first water conduit. On the other hand, the second water conduit has a structure in which both edge portions of the cover plate are inserted in the inner insertion groove in a free state, and can be easily formed without a post-process such as screwing. In addition, weirs protrude from the left and right edges of the back side of the cover plate, and water that has fallen onto the cover plate via bolts and the like is blocked by the weir unit. It is possible to prevent leaking downward through the edge portion of the plate.
前記収容溝の側壁面を、壁面に向けて徐々に開口幅が小さくなる傾斜面としたものでは、固定具の締め付けにより連結部材本体が幅方向に変形を生じるのを防止できるため板厚を薄くでき、またボルトワッシャーを小さくできるという利点がある。更には、ボルトワッシャーが位置決め作用を発揮して組立作業を簡単に行うことができる。 In the case where the side wall surface of the receiving groove is an inclined surface whose opening width gradually decreases toward the wall surface, the connecting member main body can be prevented from being deformed in the width direction by tightening the fixture, so that the plate thickness is reduced. There is an advantage that the bolt washer can be made small. Furthermore, the bolt washer exerts a positioning action, and the assembling work can be easily performed.
また、前記漏水受板はシール材とともにビス止めして保持部に取り付けてあり、一方、カバー板はフリーな状態で保持部に取り付けてあるものでは、シール材によって第１の導水路の防水性を確保することができる。また、第２の導水路はシール材を用いないため簡単に組み立てることができ、しかもカバー板上へ落下した水は堰部に堰き止められるため漏洩する心配もない。 In addition, the water leakage receiving plate is screwed together with the sealing material and attached to the holding portion, whereas the cover plate is attached to the holding portion in a free state, the sealing material is waterproof to the first water conduit. Can be secured. Further, since the second water guide channel does not use a sealing material, it can be easily assembled. Moreover, since the water dropped onto the cover plate is blocked by the weir part, there is no risk of leakage.
更に、連結部材本体の裏面に止水材とシール材を付設したものでは、止水材によって連結部材とコンクリート壁面との間隔を保持し、シール材によって防水効果を高めることができる。 Further, in the case where a water-stopping material and a sealing material are provided on the back surface of the connecting member main body, the waterproofing effect can be enhanced by the sealing material by keeping the distance between the connecting member and the concrete wall surface by the water-stopping material.
以下に、図面を参照しつつ本発明の好ましい実施の形態を示す。
図１は、例えば隧道のようなコンクリート製のトンネル構造物１の壁面２に設けられた漏水受樋３を示すものであり、図２は漏水受樋３を示す断面図である。本発明に係る漏水受樋３は、前記壁面２との間で第１の導水路４を形成する硬質合成樹脂製の平板状をなす漏水受板５と、第２の導水路６を形成する硬質合成樹脂製の平板状をなすカバー板７を、連結部材８を介し順次連結して構成されている。
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a water leakage receptacle 3 provided on a wall surface 2 of a concrete tunnel structure 1 such as a tunnel, and FIG. 2 is a cross-sectional view showing the water leakage receptacle 3. The water leakage receptacle 3 according to the present invention forms a water leakage receiving plate 5 and a second water conduit 6 that form a flat plate made of a hard synthetic resin that forms the first water conduit 4 with the wall surface 2. A cover plate 7 having a flat plate shape made of hard synthetic resin is sequentially connected via a connecting member 8.
前記連結部材８は、図３に示すように、全体が例えば硬質合成樹脂や金属を以って一体に成形されており、トンネル構造物１の壁面２に沿って長く形成され、固定具９により固定されるものである。また前記連結部材８は、平板状をなす連結部材本体１０の表面部の幅方向両側に、左右一対の角筒状の保持部１１、１１を突設し、この保持部１１、１１間に、前記固定具９を構成するアンカーボルト９ａの飛び出し部分やナット９ｂを収容するための収容溝１２を形成してなるものである。 As shown in FIG. 3, the whole connecting member 8 is integrally formed of, for example, a hard synthetic resin or metal, and is formed long along the wall surface 2 of the tunnel structure 1. It is fixed. Further, the connecting member 8 has a pair of left and right rectangular tube-shaped holding portions 11 and 11 projectingly provided on both sides in the width direction of the surface portion of the connecting member body 10 having a flat plate shape, and between the holding portions 11 and 11, An accommodation groove 12 for accommodating the protruding portion of the anchor bolt 9a and the nut 9b constituting the fixture 9 is formed.
そして該保持部１１の厚さ方向で見た先端部分の外面側には、前記漏水受板５の端縁部分を挿入させるための外挿入溝１３を、連結部材本体１０の外方に向けて開口するように設けてある。また前記各保持部１１、１１の内面側には、前記収容溝１２を閉蓋する平板状をなす硬質合成樹脂製のカバー板７の両端縁部分を挿入させるための内挿入溝１４を、連結部材本体１０の内方に向けて開口するように、前記外挿入溝１３と背中合わせの状態で設けてある。 And on the outer surface side of the tip portion viewed in the thickness direction of the holding portion 11, an outer insertion groove 13 for inserting the end edge portion of the water leakage receiving plate 5 is directed outward of the connecting member body 10. It is provided to open. Further, on the inner surface side of each of the holding portions 11, 11 is inserted an internal insertion groove 14 for inserting both end edge portions of the cover plate 7 made of a hard synthetic resin having a flat plate shape for closing the housing groove 12. The outer insertion groove 13 is provided back-to-back so as to open toward the inside of the member main body 10.
前記収容溝１２の側壁面は、壁面２に向けて徐々に開口幅が小さくなる傾斜面１５としてある。従来は、この側壁面は垂直な面であり、固定具９を締め付けたときに幅方向の変形を防止する必要性から、ボルトワッシャー９ｃを大きく、かつ厚みも大きくする必要があったが、本発明では前記傾斜面１５を形成することで幅方向の変形を防止するので、ボルトワッシャー９ｃを小さくすることができる。また、傾斜面１５の最小幅部でボルトワッシャー９ｃを位置決め作用を発揮して組立作業を簡単に行うようにすることができるという利点もある。 The side wall surface of the housing groove 12 is an inclined surface 15 whose opening width gradually decreases toward the wall surface 2. Conventionally, this side wall surface is a vertical surface, and since it was necessary to prevent deformation in the width direction when the fixture 9 was tightened, it was necessary to increase the bolt washer 9c and increase the thickness. In the present invention, since the deformation in the width direction is prevented by forming the inclined surface 15, the bolt washer 9c can be made small. Further, there is also an advantage that the bolt washer 9c can be positioned at the minimum width portion of the inclined surface 15 so that the assembling work can be easily performed.
また、前記漏水受板５の両端縁部分は保持部１１の外挿入溝１３に挿入されるとともに、ビス１６でビス止めされた状態とされ、漏水受板５とトンネル構造物の壁面２との間に第１の導水路４を形成している。この結果、前記漏水受板５は連結部材８にしっかりと固定されるので落下のおそれがない。 Further, both end edge portions of the water leakage receiving plate 5 are inserted into the outer insertion grooves 13 of the holding portion 11 and are screwed with screws 16, so that the water leakage receiving plate 5 and the wall surface 2 of the tunnel structure are connected to each other. A first water conduit 4 is formed between them. As a result, the water leakage receiving plate 5 is firmly fixed to the connecting member 8, so there is no fear of dropping.
一方、カバー板７の両端縁部分は保持部１１の内挿入溝１４にフリーな状態で挿入され、カバー板７と堰部７ａとトンネル構造物の壁面２（正確には連結部材本体１０）との間に第２の導水路６を形成している。このカバー板７はビス止めされることなくフリーな状態なため、着脱作業を簡単に行うことができる。
図４に示されるように、前記堰部７ａは前記カバー板７の裏面側の左右側縁部に突設されるものであり、これによってボルト９ａ等を伝ってカバー板７上へ落下した水が堰き止められるので、従来のようにカバー板７の端縁部分を通過して下へ漏れるのを防止することができる。
On the other hand, both edge portions of the cover plate 7 are inserted into the inner insertion groove 14 of the holding portion 11 in a free state, and the cover plate 7, the weir portion 7a, the wall surface 2 of the tunnel structure (more precisely, the connecting member main body 10), A second water conduit 6 is formed between the two. Since the cover plate 7 is free without being screwed, it can be easily attached and detached.
As shown in FIG. 4, the weir portion 7 a is protruded from the left and right edge portions on the back surface side of the cover plate 7, so that the water dropped onto the cover plate 7 through the bolts 9 a and the like. Can be prevented from leaking downward through the edge portion of the cover plate 7 as in the prior art.
また、前記漏水受板５はシール材１７ａとともにビス止めして保持部１１の外挿入溝１３に挿入された状態で取り付けてある。このシール材１７ａは、例えばクロロプレンの発泡体等の柔軟性の大きい合成樹脂からなり、止水効果が大きいため水漏れを確実に防止することができる。一方、カバー板７の両端縁部分は、前記シール材１７ａを用いることなく保持部１１の内挿入溝１４にフリーな状態で挿入されており、着脱作業の容易化が図られている。 Further, the water leakage receiving plate 5 is screwed together with the sealing material 17 a and attached in a state of being inserted into the outer insertion groove 13 of the holding portion 11. This sealing material 17a is made of a highly flexible synthetic resin such as a foam of chloroprene and has a large water stop effect, so that water leakage can be reliably prevented. On the other hand, both end edge portions of the cover plate 7 are inserted into the inner insertion groove 14 of the holding portion 11 in a free state without using the sealing material 17a, thereby facilitating the attachment / detachment work.
前記連結部材本体１０の裏面には、止水材１８とシール材１７ｂが付設してある。この止水材１８は、例えばポリエチレン発泡体やスポンジ状合成ゴム弾性体等からなるものであり、前記シール材１７ａよりは柔軟性が小さいものである。また、シール材１７ｂは前記シール材１７ａと同じものである。前記止水材１８により壁面２と連結部材本体１０との間隔を保持し、シール材１７ｂにより止水効果を高める構造となっている。 On the back surface of the connecting member main body 10, a water stop material 18 and a seal material 17b are attached. The water blocking material 18 is made of, for example, a polyethylene foam, a sponge-like synthetic rubber elastic body, or the like, and is less flexible than the sealing material 17a. The sealing material 17b is the same as the sealing material 17a. The space between the wall surface 2 and the connecting member main body 10 is maintained by the water blocking material 18, and the water blocking effect is enhanced by the sealing material 17b.
図５は、その他の連結部材８を説明する拡大断面図である。図示のものでは、カバー板７の表面側に膨出面部７ｂが形成されたものとなっており、漏水受板５と面一状態となり見栄えの優れた外観を呈することができる。 FIG. 5 is an enlarged cross-sectional view illustrating another connecting member 8. In the illustrated example, the bulging surface portion 7b is formed on the surface side of the cover plate 7, and is in a state of being flush with the water leakage receiving plate 5 and can have an excellent appearance.
次に、前記した連結部材８と漏水受板５とカバー板７とを用いて漏水受樋構造を構成する要領につき説明する。
先ず、図２と図６に示すように、隧道の漏水箇所において、前記連結部材８を隧道の壁面２に密接させ、かつ所要間隔をおいた平行配置状態としたうえで、前記固定具９を用い固定状態とする。この固定は、例えば図３に示すように、例えば壁面２に打入したアンカーボルト９ａのネジ軸部分を、連結部材本体１０に設けたボルト孔に挿通状態とした後、このネジ軸部分にボルトワッシャー９ｃを嵌めてナット９ｂを螺締することにより行うことができる。その際、アンカーボルトのネジ軸部分及びナット９ｂは、前記収容溝１５内に完全に納める必要がある。
Next, the point which comprises a water leak receiving structure using the above-mentioned connection member 8, the water leak receiving plate 5, and the cover board 7 is demonstrated.
First, as shown in FIG. 2 and FIG. 6, after the connecting member 8 is brought into close contact with the wall surface 2 of the tunnel and in a parallel arrangement state with a required interval at the leakage point of the tunnel, Use fixed state. For example, as shown in FIG. 3, after fixing the screw shaft portion of the anchor bolt 9a driven into the wall surface 2 into a bolt hole provided in the connecting member body 10, for example, the bolt is attached to the screw shaft portion. This can be done by fitting the washer 9c and screwing the nut 9b. At that time, the screw shaft portion of the anchor bolt and the nut 9 b need to be completely accommodated in the receiving groove 15.
前記漏水受板６は、隣り合う連結部材８、８の対向する外挿入溝１３、１３に、クロロプレン発泡体等のシール材１７ａを介在させてその両端縁部分が挿入せしめられ、これにより、前記漏水受板７と壁面２との間で、漏水を導くための第１の導水路４が形成される。前記第１の導水路４は、シール材１７ａや止水材１８により密着させられるので、この第１の導水路４は水漏れの心配がない。 The water leakage receiving plate 6 is inserted into the opposite outer insertion grooves 13 and 13 of the adjacent connecting members 8 and 8 with both end edge portions thereof inserted with a sealing material 17a such as chloroprene foam. A first water conduit 4 for guiding water leakage is formed between the water leakage receiving plate 7 and the wall surface 2. Since the first water conduit 4 is brought into close contact with the sealing material 17a and the water stop material 18, the first water conduit 4 has no fear of water leakage.
また、前記対向する内挿入溝１４、１４には、カバー板７の両端縁部分が挿入せしめられ、それにより前記アンカーボルト９ａのネジ軸部分やナット９ｂが収容された状態の収容溝１２が前記カバー板７で閉蓋されて、カバー板７と堰部７ａとトンネル構造物の壁面２（正確には連結部材本体１０）との間に第２の導水路６が形成されることになる。この結果、図６に示すように、前記アンカーボルト９ａ等が隠蔽されて美感に優れた外観が得られることとなる。なお、このカバー板１９は、一枚板状のものでも、あるいは、挿入の容易性を考慮して所定長さに分割されたものを用いてもよい。
また、前記カバー板７の裏面側の左右側縁部には堰部７ａが突設されており、ボルト等を伝ってカバー板上へ落下した水は堰部７ａに堰き止められるため、従来のようにカバー板７の端縁部分を通過して下へ漏れるのを防止することとなる。
Further, both end edge portions of the cover plate 7 are inserted into the opposed inner insertion grooves 14 and 14, whereby the accommodation groove 12 in a state where the screw shaft portion of the anchor bolt 9 a and the nut 9 b are accommodated is formed in the accommodation groove 12. The lid is closed by the cover plate 7, and the second water conduit 6 is formed between the cover plate 7, the dam portion 7a, and the wall surface 2 of the tunnel structure (more precisely, the connecting member main body 10). As a result, as shown in FIG. 6, the anchor bolts 9a and the like are concealed, and an appearance with excellent aesthetics can be obtained. The cover plate 19 may be a single plate or may be divided into a predetermined length in consideration of ease of insertion.
In addition, a dam portion 7a is provided on the left and right edges of the back surface side of the cover plate 7, and water that has fallen on the cover plate through bolts or the like is blocked by the dam portion 7a. In this way, it is possible to prevent the cover plate 7 from leaking downward through the edge portion.
以上のように、本発明に係る漏水受樋構造によるときは、コンクリート壁面の漏水が広範囲に亘って発生している場合でも、漏水受板５によってこれを幅広く覆うことができるため、漏水箇所の全体を確実に漏水処理することができる。
また、アンカーボルト９ａやナット９ｂ等がカバー板７で覆い隠されることから、従来のようにナット等が露出して構造物内部の美観が損なわれるといった問題が生じない。更には、前記カバー板７の裏面側の左右側縁部には堰部７ａが突設されているので、ボルト等を伝ってカバー板上へ落下した水が堰部７ａに堰き止められ、カバー板７の端縁部分を通過して下へ漏れることもない。
As described above, when the water leakage receiving structure according to the present invention is used, even when water leakage on the concrete wall surface occurs over a wide range, the water leakage receiving plate 5 can cover this widely, The whole can be reliably treated for water leakage.
Further, since the anchor bolt 9a, the nut 9b, and the like are covered with the cover plate 7, there is no problem that the nut or the like is exposed and the aesthetic appearance inside the structure is impaired as in the conventional case. Furthermore, since the weir portion 7a protrudes from the left and right edge portions on the back surface side of the cover plate 7, water that has fallen onto the cover plate via bolts or the like is blocked by the weir portion 7a. It does not leak down through the edge portion of the plate 7.
また、前記収容溝１２の側壁面を、壁面２に向けて徐々に開口幅が小さくなる傾斜面１５としたものでは、固定具９の締め付けにより連結部材本体１０が幅方向に変形を生じるのを防止できるという効果があり、この結果、板厚を薄くすることができ、またボルトワッシャー９ｃを小さくできるという利点や、更には、ボルトワッシャー９ｃが位置決め作用を発揮して組立作業を簡単に行うことができるという利点がある。 Further, in the case where the side wall surface of the housing groove 12 is the inclined surface 15 whose opening width gradually decreases toward the wall surface 2, the connecting member main body 10 is deformed in the width direction by tightening the fixture 9. As a result, the plate thickness can be reduced, and the bolt washer 9c can be made smaller. Further, the bolt washer 9c can perform the positioning operation and perform assembly work easily. There is an advantage that can be.
また、前記漏水受板５はシール材１７ａとともにビス止めして保持部１１に取り付けてあり、一方、カバー板７はフリーな状態で保持部１１に取り付けてあるものでは、シール材１７ａによって第１の導水路４の防水性を確保することができる。更には、第２の導水路６はシール材を用いないため簡単に組み立てることができ、しかもカバー板上へ落下した水は堰部７ａに堰き止められるため漏洩する心配もないという利点もある。 Further, the water leakage receiving plate 5 is screwed together with the sealing material 17a and attached to the holding portion 11, while the cover plate 7 is attached to the holding portion 11 in a free state by the sealing material 17a. The waterproofness of the water conduit 4 can be ensured. Furthermore, since the second water guide path 6 does not use a sealing material, it can be easily assembled. Further, since the water dropped onto the cover plate is blocked by the weir portion 7a, there is an advantage that there is no risk of leakage.
１ トンネル構造物
２ 壁面
３ 漏水受樋
４ 第１の導水路
５ 漏水受板
６ 第２の導水路
７ カバー板
７ａ 堰部
７ｂ 膨出面部
８ 連結部材
９ 固定具
９ａ アンカーボルト
９ｂ ナット
９ｃ ボルトワッシャー
１０ 連結部材本体
１１ 保持部
１２ 収容溝
１３ 外挿入溝
１４ 内挿入溝
１５ 傾斜面
１６ ビス
１７ａ シール材
１７ｂ シール材
１８ 止水材
３０ 導水路
３１ 漏水受板
３２ 収容溝
３３ カバー板
３４ 連結部材
３５ 外挿入溝
３６ 内挿入溝
３７ 固定具
３７ａ ボルト
３７ｂ ナット
DESCRIPTION OF SYMBOLS 1 Tunnel structure 2 Wall surface 3 Leak receiving receptacle 4 1st water guide channel 5 Water leak receiving plate 6 2nd water guide channel 7 Cover plate 7a Weir part 7b Swelling surface part 8 Connecting member 9 Fixing tool 9a Anchor bolt 9b Nut 9c Bolt washer DESCRIPTION OF SYMBOLS 10 Connection member main body 11 Holding part 12 Housing groove 13 Outer insertion groove 14 Inner insertion groove 15 Inclined surface 16 Screw 17a Sealing material 17b Sealing material 18 Water stopping material 30 Water guide path 31 Water leakage receiving plate 32 Housing groove 33 Cover plate 34 Connecting member 35 Outer insertion groove 36 Inner insertion groove 37 Fixing tool 37a Bolt 37b Nut
Claims (4)
前記連結部材をトンネル構造物の壁面に固定具により所要間隔で平行に固定し、
隣り合う連結部材の対向する外挿入溝に漏水受板の端縁部分を挿入するとともに、この漏水受板が前記保持部にビス止めされた状態として、漏水受板とトンネル構造物の壁面との間に第１の導水路を形成し、
一方、カバー板を裏面側の左右側縁部に堰部が突設されたものとして、このカバー板の両端縁部分を前記対向する内挿入溝にフリーな状態で挿入して前記収容溝を閉蓋したうえ、カバー板と堰部とトンネル構造物の壁面との間に第２の導水路を形成したことを特徴とするトンネル構造物における漏水受樋構造。 A pair of left and right rectangular tube-shaped holding portions on both sides in the width direction of the plate-shaped connecting member main body fixed along the wall surface, and a receiving groove for holding a fixture between the holding portions, While having an outer insertion groove on the outer surface side of the holding part, a water leakage receiving structure in a tunnel structure using a connecting member having an inner insertion groove on the inner surface side of the holding part,
The connecting member is fixed to the wall surface of the tunnel structure in parallel at a required interval by a fixture,
While inserting the edge portion of the water leakage receiving plate into the opposing outer insertion groove of the adjacent connecting member, the water leakage receiving plate is screwed to the holding portion, and the water leakage receiving plate and the wall surface of the tunnel structure are Forming a first waterway between them,
On the other hand, as the dam portion of the cover plate to the left and right side edge portions of the back side is projected, the housing groove and both edges of the cover plate is inserted in a free state within the insertion groove said opposing closed A water leakage receiving structure in a tunnel structure, wherein the second water conduit is formed between the cover plate, the weir part, and the wall surface of the tunnel structure after being covered.
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