JP2018028341A - Water cutoff material holder and water cutoff method of underground pipe joint box - Google Patents
Water cutoff material holder and water cutoff method of underground pipe joint box Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 109
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims description 19
- 238000003825 pressing Methods 0.000 claims description 15
- 239000000837 restrainer Substances 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 4
- 238000004078 waterproofing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 239000003673 groundwater Substances 0.000 description 17
- 238000003860 storage Methods 0.000 description 12
- 239000000295 fuel oil Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000005303 weighing Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000013008 moisture curing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
本発明は、止水材抑え具及び地下埋設型配管継手ボックスの止水方法に関し、例えば、地下に埋設された配管と地下に埋設された石油燃料タンクに接続された配管とを繋ぐ継手が格納された地下に埋設された配管継手ボックス内への地下水の漏えいを止水する金具及び止水方法に関する。 The present invention relates to a waterproofing method for a waterproofing material suppressor and an underground buried pipe joint box, for example, a joint that connects a pipe buried underground and a pipe connected to a petroleum fuel tank buried underground is stored. The present invention relates to a metal fitting and a water stopping method for stopping leakage of ground water into a pipe joint box buried underground.
ガソリンスタンドに代表される給油所には、地下タンクが埋設されている。タンクローリー車からガソリン、軽油、灯油等の燃料油の荷卸（注入）を受けて、かかる地下タンクに燃料油が貯蔵されている。そして、地下タンクに接続された各計量機が地下タンク内に貯蔵された燃料油を車両に給油（注出）している。 Underground tanks are buried in gas stations such as gas stations. In response to unloading (injection) of fuel oil such as gasoline, light oil and kerosene from a tanker truck, the fuel oil is stored in the underground tank. Each measuring machine connected to the underground tank supplies (pours out) fuel oil stored in the underground tank to the vehicle.
かかる設備について、タンクローリー車から燃料油の荷卸（注入）を受ける注入口から地下タンクまでの間の配管は地中に埋設されている。同様に、地下タンクと各計量機との間の配管も地中に埋設されている。これらの配管は、地下タンクを点検する地下に埋設された継手ボックス内において地下タンクから延びる配管と配管継手により接続されている。地中に埋設されたこれらの配管は、継手ボックスの壁面を貫通して継手ボックス内に突き出すように配置されている。そのため、これらの配管を通した後に残る継手ボックスの壁面の貫通穴の隙間から地下水が継手ボックス内に漏れ出してしまう。そのため、配管と壁面との隙間にパテ材を塗り込み、かかる地下水の侵入を防止していた。しかしながら、かかるパテ材の経年劣化と地下水の水圧によりパテ材が剥がれ、地下水が継手ボックス内に漏れ出してしまうといった問題があった。さらに、従来のパテ材は、乾燥した状態で施工する必要があり、一度漏れてしまった個所の修復に時間がかかってしまうといった問題があった。 With regard to such equipment, a pipe from an inlet that receives unloading (injection) of fuel oil from a tank truck to an underground tank is buried in the ground. Similarly, the piping between the underground tank and each weighing machine is buried in the ground. These pipes are connected by a pipe joint and a pipe extending from the underground tank in a joint box buried underground for checking the underground tank. These pipes buried in the ground are arranged so as to penetrate the wall surface of the joint box and protrude into the joint box. Therefore, groundwater leaks into the joint box from the gaps in the through holes on the wall surface of the joint box remaining after passing through these pipes. For this reason, putty material is applied to the gap between the pipe and the wall surface to prevent such groundwater from entering. However, there is a problem that the putty material is peeled off due to aging of the putty material and the water pressure of the groundwater, and the groundwater leaks into the joint box. Furthermore, the conventional putty material has to be applied in a dry state, and there has been a problem that it takes time to repair a leaked portion.
なお、地下に埋設されていないが、地上のコンクリート構造物に設けられた貫通穴とその貫通穴に挿着されるスリーブ管との打継部に、押出成型された水膨張性ゴム製品の端部同士を接着材でリング状に繋げた止水リングを嵌め込むことで止水するといった技術が開示されている（例えば、特許文献１参照）。しかしながら、かかる止水リングは、使用時に既にリング状に形成されてしまっているので、配管の端部に配管継手等が固定されて配管径よりも太くなっている場合には止水リングに配管を通すことができず使用することが困難である。また、既に配管同士が継手によって接続された後のように配管に端部が無くなってしまった場合にはそもそも止水リングに配管を通すことができず使用することが困難である。 The end of a water-expandable rubber product that is not molded underground but is extruded at the joint between a through-hole provided in a concrete structure on the ground and a sleeve tube inserted into the through-hole. A technique is disclosed in which water is stopped by fitting a water-stop ring in which parts are connected in a ring shape with an adhesive (see, for example, Patent Document 1). However, since such a water stop ring is already formed in a ring shape at the time of use, if a pipe joint or the like is fixed to the end of the pipe and is thicker than the pipe diameter, the water stop ring is connected to the water stop ring. It cannot be passed through and is difficult to use. In addition, when the pipes have already lost their ends as after the pipes have already been connected by a joint, the pipes cannot be passed through the water stop ring in the first place, which is difficult to use.
そこで、本発明の一態様は、止水材が剥がれることを防止すると共に、既に配管同士が継手によって接続された後からでも止水工事の施工が可能な止水材抑え具及び地下埋設型配管継手ボックスの止水方法を提供する。 Therefore, according to one aspect of the present invention, a water-stopping material suppressor and an underground-buried pipe that can prevent the water-stopping material from being peeled off and can be used for water-stopping work even after the pipes are already connected to each other by a joint. Provide a water stop method for a joint box.
本発明の一態様の止水材抑え具は、
壁面から突き出た円形の配管を外側から挟み込み可能に形成され、バンドを用いて外側から締め付けられることによって前記配管に取り付けられる、対となる第１と第２の半円筒部材と、
一方が第１の半円筒部材の端部に第１の半円筒部材の半円周に沿って接続され、他方が第２の半円筒部材の端部に第２の半円筒部材の半円周に沿って接続された、一体となって、配管と壁面との隙間を覆う止水材を壁面に押圧する第１と第２のフランジ部分と、
を備えたことを特徴とする。
The water-stopping material suppressor of one aspect of the present invention is
A pair of first and second semi-cylindrical members which are formed so as to be able to sandwich a circular pipe protruding from the wall surface from the outside and are attached to the pipe by being tightened from the outside using a band;
One end is connected to the end of the first semi-cylindrical member along the semi-circumference of the first semi-cylindrical member, and the other is connected to the end of the second semi-cylindrical member. First and second flange portions that are integrally connected and press the water stop material that covers the gap between the pipe and the wall surface against the wall surface;
It is provided with.
また、第１と第２のフランジ部分は、配管を外側から挟み込んだ状態で、互いに一部が重なり合うように形成されると好適である。 In addition, it is preferable that the first and second flange portions are formed so as to partially overlap each other with the piping sandwiched from the outside.
また、第１と第２の半円筒部材の内径は、配管の外径と略同一に形成されると好適である。 In addition, it is preferable that the inner diameters of the first and second semi-cylindrical members are formed substantially the same as the outer diameter of the pipe.
本発明の一態様の地下埋設型配管継手ボックスの止水方法は、
対となる第１と第２の半円筒部材と、一方が第１の半円筒部材の端部に第１の半円筒部材の半円周に沿って接続され、他方が第２の半円筒部材の端部に第２の半円筒部材の半円周に沿って接続された、第１と第２のフランジ部分と、を有する止水材抑え具を用いて、第１と第２のフランジ部分の面に、止水材を塗布する工程と、
地下に埋設された円形の配管同士を繋ぐ配管継手を格納する地下に埋設された配管継手ボックスの壁面から配管継手ボックス内部に突き出た配管を第１と第２の半円筒部材で挟み込む工程と、
第１と第２の半円筒部材で配管を挟み込んだ状態で、第１と第２のフランジ部分の各面に塗布された止水材を壁面に押圧しながらバンドを用いて第１と第２の半円筒部材を外側から締め付けることによって配管に止水材抑え具を取り付ける工程と、
を備えたことを特徴とする。
The water stopping method of the underground buried pipe joint box of one aspect of the present invention is as follows.
A pair of first and second semi-cylindrical members, one connected to the end of the first semi-cylindrical member along the semicircular circumference of the first semi-cylindrical member, and the other to the second semi-cylindrical member First and second flange portions using a water stop material pressing tool having first and second flange portions connected to the end of the second semicylindrical member along the semicircular circumference of the second semicylindrical member Applying a water-stopping material to the surface of
A step of sandwiching a pipe projecting from the wall surface of the pipe joint box embedded in the basement, which stores the pipe joint connecting the circular pipes embedded in the basement, between the first and second semi-cylindrical members;
With the piping sandwiched between the first and second semi-cylindrical members, the first and second bands are used while pressing the water-stopping material applied to each surface of the first and second flange portions against the wall surface. A process of attaching a water stop material restrainer to the pipe by tightening the semi-cylindrical member from the outside,
It is provided with.
また、配管の外周に沿って壁面に止水材を塗布する工程をさらに備え、
第１と第２のフランジ部分は、第１と第２のフランジ部分の各面に塗布された止水材と壁面に塗布された止水材とを合わせて壁面に押圧すると好適である。
In addition, the method further includes a step of applying a water stop material to the wall surface along the outer periphery of the pipe
It is preferable that the first and second flange portions are pressed against the wall surface by combining the water-stopping material applied to each surface of the first and second flange portions and the water-stopping material applied to the wall surface.
本発明の一態様によれば、止水材が剥がれることを防止すると共に、既に配管同士が継手によって接続された後からでも止水工事の施工ができる。 According to one aspect of the present invention, it is possible to prevent the water-stopping material from being peeled off and to perform the water-stopping work even after the pipes have already been connected by the joint.
実施の形態１．
図１は、実施の形態１における給油所の構成を示す断面構成図の一例である。図１において、ガソリンスタンドに代表される給油所には、貯蔵タンク１０２（地下タンク）が地下（地中）に埋設されている。一方、地上には、計量機（給油器）１０４が配置される。また、地上には、タンクローリー車１０６からの燃料油の注入を受ける配管注入口１１６が配置される。貯蔵タンク１０２と計量機１０４との間は配管１１２によって接続される。また、貯蔵タンク１０２と配管注入口１１６との間は配管１１４によって接続される。また、貯蔵タンク１０２内の圧力が所定の値を超えた場合に、圧力調整のために気化したガスは、例えば配管１１４を介して放出弁１３０から大気中に放出される。かかる配管１１２，１１４は、地下（地中）に埋設されている。
Embodiment 1 FIG.
FIG. 1 is an example of a cross-sectional configuration diagram illustrating a configuration of a gas station in the first embodiment. In FIG. 1, a storage tank 102 (underground tank) is buried underground (under the ground) in a gas station represented by a gas station. On the other hand, a weighing machine (oiling device) 104 is arranged on the ground. A pipe inlet 116 that receives fuel oil from the tank truck 106 is disposed on the ground. The storage tank 102 and the weighing machine 104 are connected by a pipe 112. The storage tank 102 and the pipe inlet 116 are connected by a pipe 114. Further, when the pressure in the storage tank 102 exceeds a predetermined value, the gas vaporized for pressure adjustment is released from the release valve 130 into the atmosphere via the pipe 114, for example. Such pipes 112 and 114 are buried underground (under the ground).
給油所には、ガソリン、軽油、及び灯油等の燃料油を一般車両３００に販売するガソリンスタンド（ＧＳ）（或いはＳＳ：サービスステーション）の他に、運送事業者等が自己の事業に使用する車両（タクシー、バス、或いはトラック等）に燃料油を供給する給油場所も含まれる。ここで言う燃料油には、その他、液化状の天然ガス、及び液化状の水素等が含まれてもよい。 In addition to the gas station (GS) (or SS: service station) that sells fuel oil such as gasoline, light oil, and kerosene to the general vehicle 300, there are vehicles used by transportation companies for their own business. A refueling place that supplies fuel oil to a taxi, bus, truck, etc. is also included. In addition, the fuel oil referred to here may include liquefied natural gas, liquefied hydrogen, and the like.
タンクローリー車１０６が給油所に到来すると、タンクローリー車１０６の配管は配管注入口１１６に接続される。その後、タンクローリー車１０６によって運ばれてきた燃料油は、配管１１４内を流れて貯蔵タンク１０２内に注入される。 When the tank truck 106 arrives at the gas station, the piping of the tank truck 106 is connected to the pipe inlet 116. Thereafter, the fuel oil carried by the tank truck 106 flows through the pipe 114 and is injected into the storage tank 102.
地上に配置された計量機１０４は、配管１１２を介して貯蔵タンク１０２内に貯蔵された燃料油１０１を車両３００に注出（給油）する。例えば、計量機１０４内に配置された図示しないポンプによって貯蔵タンク１０２内に貯蔵された燃料油１０１を移送させる。 The weighing machine 104 arranged on the ground pours (refuels) the fuel oil 101 stored in the storage tank 102 via the pipe 112 into the vehicle 300. For example, the fuel oil 101 stored in the storage tank 102 is transferred by a pump (not shown) disposed in the weighing machine 104.
ここで、これらの円形の配管１１２，１１４は、貯蔵タンク１０２を点検する地下に埋設された継手ボックス１００内において貯蔵タンク１０２から延びる配管と配管継手により接続されている。 Here, these circular pipes 112 and 114 are connected to a pipe extending from the storage tank 102 and a pipe joint in a joint box 100 buried underground for checking the storage tank 102.
図２は、実施の形態１における地下埋設配管継手ボックス及び配管継手ボックス内部の構成の一例を示す図である。地下埋設型配管継手ボックス１００は、ボックス本体１２０と調整枠１２２とマンホール蓋１２４とを有している。ボックス本体１２０は、例えば鋼板を組み合わせて上面が開口した直方体の箱状に形成される。そして、ボックス本体１２０は、地下に埋設されると共に、地中に埋設された貯蔵タンク１０２上に配置される。ここで、地表面の高さ位置は一様とは限らないので、ボックス本体１２０の上面は、地表よりも低位置になるように埋設される。そして、ボックス本体１２０の側壁の内側或いは外側に上方から調整枠１２２を差し込み、ボックス本体１２０上に調整枠１２２を載置する。その際、調整枠１２２の上端が地表面と同じ高さ位置になるように調整枠１２２の配置高さが調整される。調整枠１２２で最終高さが調整できるので、ボックス本体１２０の施工を容易にできる。調整枠１２２上面は鋼板で覆われ、中央部が点検できるように開口される。そして、かかる開口部はマンホール蓋１２４で覆われ、点検時は、マンホール蓋１２４を取り外すことで継手ボックス１００内部を点検可能にしている。 FIG. 2 is a diagram illustrating an example of a configuration inside the underground buried pipe joint box and the pipe joint box in the first embodiment. The underground buried pipe joint box 100 includes a box body 120, an adjustment frame 122, and a manhole cover 124. The box body 120 is formed, for example, in a rectangular parallelepiped box shape with an upper surface opened by combining steel plates. The box body 120 is buried underground and is disposed on the storage tank 102 buried in the ground. Here, since the height position of the ground surface is not necessarily uniform, the upper surface of the box body 120 is embedded so as to be positioned lower than the ground surface. Then, the adjustment frame 122 is inserted from above into the inside or outside of the side wall of the box body 120, and the adjustment frame 122 is placed on the box body 120. At that time, the arrangement height of the adjustment frame 122 is adjusted so that the upper end of the adjustment frame 122 is at the same height as the ground surface. Since the final height can be adjusted by the adjustment frame 122, the box body 120 can be easily constructed. The upper surface of the adjustment frame 122 is covered with a steel plate and opened so that the central portion can be inspected. Such an opening is covered with a manhole cover 124, and during inspection, the inside of the joint box 100 can be inspected by removing the manhole cover 124.
地中に埋設された配管１１２，１１４は、継手ボックス１００の壁面を貫通して継手ボックス１００内に突き出すように配置される。そして、継手ボックス１００内において、貯蔵タンク１０２から上方に延びる配管１１６と配管継手１１８により接続される。このように、配管１１２，１１４は継手ボックス１００の壁面を貫通するため、これらの配管１１２，１１４を通した後に残る継手ボックス１００の壁面の貫通穴の隙間（Ａ部）から地下水が継手ボックス１００内に漏れ出してしまう。そのため、従来、配管１１２（或いは配管１１４）と壁面との隙間にパテ材を塗り込み、かかる地下水の侵入を防止していた。しかしながら、上述したように、かかるパテ材の経年劣化と地下水の水圧によりパテ材が剥がれ、地下水が継手ボックス１００内に漏れ出してしまっていた。さらに、従来のパテ材は、乾燥した状態で施工する必要があり、一度漏れてしまった個所の修復に時間がかかってしまうといった問題を抱えていた。 The pipes 112 and 114 buried in the ground are disposed so as to penetrate the wall surface of the joint box 100 and protrude into the joint box 100. And in the joint box 100, it connects with the piping 116 and the piping joint 118 which are extended from the storage tank 102 upwards. Thus, since the pipes 112 and 114 pass through the wall surface of the joint box 100, groundwater is supplied from the clearance (A part) of the through hole on the wall surface of the joint box 100 remaining after passing through the pipes 112 and 114. Leaks in. Therefore, conventionally, putty material was applied to the gap between the pipe 112 (or the pipe 114) and the wall surface to prevent intrusion of the groundwater. However, as described above, the putty material is peeled off due to the aging of the putty material and the water pressure of the groundwater, and the groundwater leaks into the joint box 100. In addition, the conventional putty material has to be applied in a dry state, and has a problem that it takes time to repair a leaked portion.
そこで、実施の形態１では、止水材２０として、水膨張シール材を用いる。例えば、湿気硬化型のパテ状（コーキングタイプ）の材料を用いると好適である。水膨張シール材は市販品で構わない。例えば、ＡＤＥＫＡ社製の止水シール材（ウルトラシールシリーズ）等を用いると好適である。そして、止水材２０を貫通穴の隙間を覆うように配管１１２，１１４の周囲に塗布し、かかる止水材２０が水圧で剥がれないように止水材抑え具１０で止水材２０を抑える。止水材抑え具１０は、固定バンド３０で配管１１２（或いは配管１１４）に固定される。止水材抑え具１０が配管１１２（或いは配管１１４）から外れない限り、止水材２０を抑え続けるので、止水材２０の経年劣化や地下水の水圧により止水材２０が剥がれ落ちることを防止できる。 Therefore, in the first embodiment, a water expansion seal material is used as the water stop material 20. For example, it is preferable to use a moisture-curing putty-like (coking type) material. The water expansion sealing material may be a commercially available product. For example, it is preferable to use a waterproof seal material (Ultra Seal Series) manufactured by ADEKA. And the water stop material 20 is apply | coated to the circumference | surroundings of piping 112,114 so that the clearance gap between through-holes may be covered, and the water stop material 20 is suppressed with the water stop material suppression tool 10 so that this water stop material 20 may not be peeled off with water pressure. . The water stop material holding tool 10 is fixed to the pipe 112 (or the pipe 114) by the fixing band 30. Since the water stop material 20 is kept suppressed unless the water stop material holding tool 10 is detached from the pipe 112 (or the pipe 114), the water stop material 20 is prevented from peeling off due to aged deterioration of the water stop material 20 or groundwater pressure. it can.
図３は、実施の形態１における地下埋設型配管継手ボックスの止水方法の要部工程を示すフローチャート図と施工説明図である。図３において、実施の形態１における地下埋設型配管継手ボックスの止水方法は、止水材塗布工程（Ｓ１０２）と、挟み込み工程（Ｓ１０４）と、押圧工程（Ｓ１０６）と、締め付け工程（Ｓ１０８）と、いう一連の工程を実施する。 FIG. 3 is a flowchart and a construction explanatory diagram illustrating main steps of the water stop method for the underground buried pipe joint box according to the first embodiment. In FIG. 3, the water-stopping method for the underground buried pipe joint box in the first embodiment includes a water-stopping material application step (S102), a sandwiching step (S104), a pressing step (S106), and a tightening step (S108). A series of steps are performed.
まず、前処理工程として、配管１１２，１１４は貫通する継手ボックス１００の壁面の貫通穴の隙間を塞ぐように例えば水中パテ（水中接着剤とのいう）で仮止めを行うと好適である。かかる前処理は必ず実施する必要はないが、行っておくと、より止水効果を向上できる。水中パテは市販品で構わない。水中パテを用いることで、地下水等で濡れている状態でも仮止め施工を行うことができる。水中パテとして、例えば下水道用接合剤（積水化学社製）等を用いると好適である。 First, as a pretreatment step, it is preferable that the pipes 112 and 114 are temporarily fixed with, for example, an underwater putty (referred to as an underwater adhesive) so as to close a gap between through holes on the wall surface of the joint box 100 that penetrates. Such pretreatment is not necessarily performed, but if it is performed, the water stop effect can be further improved. The underwater putty may be a commercial product. By using the underwater putty, temporary fixing can be performed even in a wet state with groundwater or the like. As the underwater putty, it is preferable to use, for example, a sewer bonding agent (manufactured by Sekisui Chemical Co., Ltd.).
止水材塗布工程（Ｓ１０２）として、止水材抑え具１０を用いて、止水材抑え具１０のフランジ部分（第１と第２のフランジ部分）の面に、止水材２０を塗布する。 As the water-stopping material application step (S102), the water-stopping material 20 is applied to the surfaces of the flange portions (first and second flange portions) of the water-stopping material presser 10 using the water-stopping material presser 10. .
図４は、実施の形態１における止水材抑え具の構成の一例を示す正面図である。
図５は、図４に示す止水材抑え具の背面図である。
図６は、図４に示す止水材抑え具の開閉機構の説明をするための図である。
図７は、図４に示す止水材抑え具の底面図である。
図８は、図４に示す止水材抑え具の平面図である。
図９は、図４に示す止水材抑え具の左側面図である。
図１０は、図４に示す止水材抑え具の右側面図である。また、図１０に示す止水材抑え具の右側面図は、重ね合わせ部１３の端部の輪郭線が現れる点以外は、図９に示した左側面図と実質的に対称となる。
FIG. 4 is a front view showing an example of the configuration of the water stop material restrainer in the first embodiment.
FIG. 5 is a rear view of the water stop material pressing tool shown in FIG. 4.
FIG. 6 is a view for explaining an opening / closing mechanism of the water-stopping material suppressor shown in FIG. 4.
FIG. 7 is a bottom view of the water stop material pressing tool shown in FIG. 4.
FIG. 8 is a plan view of the water stop material pressing tool shown in FIG. 4.
FIG. 9 is a left side view of the water blocking material retainer shown in FIG. 4.
FIG. 10 is a right side view of the water stop material retainer shown in FIG. 4. 10 is substantially symmetric with the left side view shown in FIG. 9 except that the outline of the end portion of the overlapping portion 13 appears.
図４〜１０において、止水材抑え具１０は、対となる半円筒部材１６（第１の半円筒部材）と、半円筒部材１８（第２の半円筒部材）と、フランジ部分１２（第１のフランジ部分）と、フランジ部分１４（第２のフランジ部分）と、を有している。フランジ部分１２，１４は、一方が半円筒部材１６の端部に半円筒部材１６の半円周に沿って接続され、他方が半円筒部材１８の端部に半円筒部材１８の半円周に沿って接続される。ここでは、フランジ部分１２が半円筒部材１６の端部に半円筒部材１６の半円周に沿って接続される。そして、フランジ部分１４が半円筒部材１８の端部に半円筒部材１８の半円周に沿って接続される。図６に示すように、対となる半円筒部材１６と半円筒部材１８は、円筒を構成する向きに一端側同士が蝶番１９によって揺動可能に接続される。これにより、半円筒部材１６と半円筒部材１８は、蝶番１９を支点に開閉することができ、半円筒部材１６と半円筒部材１８の間に配管１１２（或いは配管１１４）を外側から挟み込むことができる。 4-10, the water stop material restraining tool 10 includes a semi-cylindrical member 16 (first semi-cylindrical member), a semi-cylindrical member 18 (second semi-cylindrical member), and a flange portion 12 (first semi-cylindrical member). 1 flange portion) and a flange portion 14 (second flange portion). One of the flange portions 12, 14 is connected to the end of the semi-cylindrical member 16 along the semi-circumference of the semi-cylindrical member 16, and the other is connected to the end of the semi-cylindrical member 18 to the semi-circumference of the semi-cylindrical member 18. Connected along. Here, the flange portion 12 is connected to the end of the semicylindrical member 16 along the semicircular circumference of the semicylindrical member 16. The flange portion 14 is connected to the end of the semicylindrical member 18 along the semicircular circumference of the semicylindrical member 18. As shown in FIG. 6, a pair of semi-cylindrical member 16 and semi-cylindrical member 18 are connected to each other by a hinge 19 so as to be swingable in the direction of constituting the cylinder. Thus, the semi-cylindrical member 16 and the semi-cylindrical member 18 can be opened and closed with the hinge 19 as a fulcrum, and the pipe 112 (or the pipe 114) can be sandwiched between the semi-cylindrical member 16 and the semi-cylindrical member 18 from the outside. it can.
半円筒部材１６，１８が接続されて形成する円形の内径は、止水する配管１１２（或いは配管１１４）の外径と略同一に形成されると好適である。また、半円筒部材１６，１８の長さは、固定バンド３０で締め付け可能なように、固定バンド３０の幅よりも大きいサイズにすると好適である。 The circular inner diameter formed by connecting the semi-cylindrical members 16 and 18 is preferably formed to be substantially the same as the outer diameter of the pipe 112 (or the pipe 114) for stopping water. The length of the semi-cylindrical members 16, 18 is preferably larger than the width of the fixed band 30 so that the fixed band 30 can be tightened.
また、フランジ部分１２，１４は、半円筒部材１６，１８の内周側にはみ出さないように形成される。ここで、継手ボックス１００の壁面の貫通穴は、通す配管１１２（或いは配管１１４）の外径寸法よりも若干大きな径で形成される。図３で示すように、配管１１２（或いは配管１１４）の外周に沿って隙間Ｌ’が例えば５ｍｍ程度開くように形成される。フランジ部分１２，１４は、つばの幅（＝外周半径−内周半径）がかかる隙間Ｌ’の３倍以上に形成されると好適である。これにより、後述するように、継手ボックス１００の壁面の貫通穴の径方向に隙間Ｌの３倍以上のサイズで止水材２０を押圧できる。 Further, the flange portions 12 and 14 are formed so as not to protrude to the inner peripheral side of the semi-cylindrical members 16 and 18. Here, the through hole in the wall surface of the joint box 100 is formed with a diameter slightly larger than the outer diameter of the pipe 112 (or pipe 114) to be passed. As shown in FIG. 3, the gap L ′ is formed so as to open, for example, about 5 mm along the outer periphery of the pipe 112 (or the pipe 114). The flange portions 12 and 14 are preferably formed to have a flange width (= outer peripheral radius−inner peripheral radius) that is three times or more the gap L ′. Thereby, the water stop material 20 can be pressed by the size of 3 times or more of the clearance gap L to the radial direction of the through-hole of the wall surface of the joint box 100 so that it may mention later.
止水材抑え具１０は、例えば、所定の厚み（例えば０．５〜１．２ｍｍ程度が好適である。）の金属板を加工して形成される。そして、フランジ部分１２と半円筒部材１６とを例えば溶接（例えばスポット溶接）することで接続できる。同様に、フランジ部分１４と半円筒部材１８とを例えば溶接（例えばスポット溶接）することで接続できる。材料となる金属は、腐食しにくい材料が望ましい。例えば、ステンレス鋼材等が好適である。例えば、ニッケルを含まないフェライト系ステンレス鋼材は腐食しにくく、また金属組織においてフェライト系とオーステナイト系の二つの相を有する二相ステンレスは、応力腐食割れに強いという性質がある。但し、これに限るものではなく、その他の金属材料を用いても構わない。湿潤環境化で腐食し易い材料を用いる場合には防食塗装等を施せばよい。また、金属材料に限らず、プラスチック材料、セラミック材料、金属酸化物、等を用いて良い。セラミック材料では、アルミナ、窒化ケイ素、炭化ケイ素等が特に耐食性が高い材料であり、好適である。さらに、非鉄金属の合金では、チタン合金が防食性に優れ、好適である。 For example, the water stop material holding tool 10 is formed by processing a metal plate having a predetermined thickness (for example, about 0.5 to 1.2 mm is preferable). The flange portion 12 and the semi-cylindrical member 16 can be connected by, for example, welding (for example, spot welding). Similarly, the flange portion 14 and the semi-cylindrical member 18 can be connected by, for example, welding (for example, spot welding). The material metal is preferably a material that does not corrode easily. For example, a stainless steel material is suitable. For example, a ferritic stainless steel material that does not contain nickel is difficult to corrode, and a duplex stainless steel having two phases of ferrite and austenite in the metal structure is resistant to stress corrosion cracking. However, the present invention is not limited to this, and other metal materials may be used. In the case of using a material that easily corrodes in a wet environment, anticorrosion coating or the like may be applied. Moreover, not only a metal material but a plastic material, a ceramic material, a metal oxide, etc. may be used. Among ceramic materials, alumina, silicon nitride, silicon carbide and the like are materials having particularly high corrosion resistance, and are suitable. Further, titanium alloys are preferred as non-ferrous metal alloys because of their excellent corrosion resistance.
また、対となるフランジ部分１２，１４は、円筒を構成するように半円筒部材１６と半円筒部材１８とが閉じた状態で、互いの先端部の一部が重なり合うように形成される。図４〜９の例において、フランジ部分１２は、蝶番１９側の端部に半円筒部材１６の半円周端よりさらに重ね合わせ部分１５（ｂ部）を延ばして形成される。フランジ部分１４は、開放端側の端部に半円筒部材１８の半円周端よりさらに重ね合わせ部分１３（ａ部）を延ばして形成される。かかる構成により、半円筒部材１６と半円筒部材１８とが閉じた状態で、フランジ部分１２の開放端部分と重ね合わせ部分１３とがオーバーラップする。同様に、フランジ部分１４の蝶番１９側の端部分と重ね合わせ部分１５とがオーバーラップする。オーバーラップ部分を設けることで、後述するように、止水材２０を押圧する場合に、フランジ部分１２，１４の隙間から止水材２０が漏れ出すことを防止できる。 Further, the pair of flange portions 12 and 14 are formed so that a part of each tip portion overlaps with the semi-cylindrical member 16 and the semi-cylindrical member 18 closed so as to constitute a cylinder. 4 to 9, the flange portion 12 is formed by extending the overlapping portion 15 (b portion) from the semicircular end of the semi-cylindrical member 16 at the end portion on the hinge 19 side. The flange portion 14 is formed by extending an overlapping portion 13 (a portion) from the semicircular end of the semi-cylindrical member 18 to the end portion on the open end side. With such a configuration, the open end portion of the flange portion 12 and the overlapping portion 13 overlap in a state where the semicylindrical member 16 and the semicylindrical member 18 are closed. Similarly, the end portion on the hinge 19 side of the flange portion 14 and the overlapping portion 15 overlap. By providing the overlap portion, as will be described later, it is possible to prevent the water stop material 20 from leaking from the gap between the flange portions 12 and 14 when the water stop material 20 is pressed.
かかる止水材抑え具１０を用いて、止水材抑え具１０のフランジ部分１２，１４の面（半円筒部材１６が無い側の面）に、止水材２０を塗布する。止水材２０は、フランジ部分１２，１４の内周側端よりも内側に若干盛りだすように塗布すると良い。また、フランジ部分１２，１４の面全面に塗布すると良いが、これに限るものではない。望ましくは、継手ボックス１００の壁面の貫通穴に配管１１２（或いは配管１１４）を通した場合の隙間Ｌ’の３倍以上の高さＤまで塗布することが望ましい。 The water-stopping material 20 is applied to the surfaces of the flange portions 12 and 14 of the water-stopping material holding device 10 (the surface on the side where the semi-cylindrical member 16 is not provided) using the water-stopping material holding device 10. The water blocking material 20 is preferably applied so as to slightly protrude from the inner peripheral side ends of the flange portions 12 and 14. Moreover, although it is good to apply | coat to the whole surface of the flange parts 12 and 14, it is not restricted to this. Desirably, it is desirable to apply up to a height D that is at least three times the gap L 'when the pipe 112 (or pipe 114) is passed through the through hole in the wall surface of the joint box 100.
また、止水材塗布工程（Ｓ１０２）では、さらに、止水する配管１１２（或いは配管１１４）の外周に沿って継手ボックス１００の壁面に止水材２０を塗布するとより好適である。 In the water-stopping material application step (S102), it is more preferable that the water-stopping material 20 is further applied to the wall surface of the joint box 100 along the outer periphery of the pipe 112 (or the pipe 114) that stops water.
挟み込み工程（Ｓ１０４）として、配管継手ボックス１００の壁面から配管継手ボックス１００内部に突き出た、止水対象となる配管１１２（或いは配管１１４）を半円筒部材１６，１８で挟み込む。その際、止水材２０が塗布されたフランジ部分１２，１４面を、配管１１２（或いは配管１１４）が突き出た壁面側に向けることは言うまでもない。 As the sandwiching step (S104), the pipe 112 (or the pipe 114) that protrudes from the wall surface of the pipe joint box 100 to the inside of the pipe joint box 100 is sandwiched between the semi-cylindrical members 16 and 18. At this time, it goes without saying that the flange portions 12 and 14 coated with the water blocking material 20 are directed to the wall surface side from which the pipe 112 (or the pipe 114) protrudes.
押圧工程（Ｓ１０６）として、半円筒部材１６，１８で止水対象となる配管１１２（或いは配管１１４）を挟み込んだ状態で、フランジ部分１２，１４の各面に塗布された止水２０材を壁面に押圧する。壁面側にも押圧材２０が予め塗布されている場合には、フランジ部分１２，１４は、フランジ部分１２，１４の各面に塗布された止水材２０と壁面に塗布された止水材２０とを合わせて壁面に押圧する。これにより、フランジ部分１２，１４は、一体となって、配管１１２（或いは配管１１４）と配管継手ボックス１００の壁面との隙間を覆う止水材２０を壁面に押圧する。 As the pressing step (S106), the water-stopping 20 material applied to each surface of the flange portions 12 and 14 in the state where the pipe 112 (or the pipe 114) to be water-stopped is sandwiched between the semi-cylindrical members 16 and 18, Press on. When the pressing material 20 is applied to the wall surface side in advance, the flange portions 12 and 14 have the water-stopping material 20 applied to each surface of the flange portions 12 and 14 and the water-stopping material 20 applied to the wall surface. And press against the wall. Thereby, the flange parts 12 and 14 are united, and the water stop material 20 which covers the clearance gap between the piping 112 (or piping 114) and the wall surface of the piping joint box 100 is pressed on a wall surface.
締め付け工程（Ｓ１０８）として、半円筒部材１６，１８で止水対象となる配管１１２（或いは配管１１４）を挟み込んだ状態で、フランジ部分１２，１４の各面に塗布された止水材２０を壁面に押圧しながら固定バンド３０を用いて半円筒部材１６，１８を外側から配管１１２（或いは配管１１４）に締め付ける。 As the tightening step (S108), the water-stopping material 20 applied to each surface of the flange portions 12 and 14 in the state where the pipe 112 (or the pipe 114) to be water-stopped is sandwiched between the semi-cylindrical members 16 and 18 The semi-cylindrical members 16 and 18 are fastened to the pipe 112 (or the pipe 114) from the outside using the fixing band 30 while being pressed.
図１１は、実施の形態１における固定バンドで止水材抑え具を締め付けた状態の一例を示す図である。図１１では、配管は省略している。固定バンド３０は、図１１に示すように、単純な結束バンドよりも、バンドの長さを徐々に絞っていくことが可能な固定バンドが望ましい。例えば、ドライバー等の工具を用いてバンドを徐々に絞っていく金属バンドが好適である。バンドの長さを絞る機構は、これに限るものではなく、工具を用いずにねじ摘みを手動で回して徐々に絞るものであっても好適である。バンドを徐々に絞っていくことで半円筒部材１６，１８の外周を略均一な力で締め付けていくことができる。半円筒部材１６，１８の外周を略均一な力で締め付けることで、半円筒部材１６，１８の位置関係がずれて止水材２０が漏れ出てしまうことを防止できる。 FIG. 11 is a diagram illustrating an example of a state in which the water stop material pressing tool is tightened by the fixing band in the first embodiment. In FIG. 11, piping is omitted. As shown in FIG. 11, the fixed band 30 is preferably a fixed band capable of gradually reducing the length of the band rather than a simple binding band. For example, a metal band that gradually squeezes the band using a tool such as a screwdriver is suitable. The mechanism for narrowing the length of the band is not limited to this, and it is also suitable that the screw knob is manually turned without using a tool and gradually narrowed. By gradually narrowing the band, the outer circumferences of the semi-cylindrical members 16 and 18 can be tightened with a substantially uniform force. By tightening the outer peripheries of the semi-cylindrical members 16 and 18 with a substantially uniform force, it is possible to prevent the water stopping material 20 from leaking due to the positional relationship between the semi-cylindrical members 16 and 18 being shifted.
以上のように、固定バンド３０を用いて半円筒部材１６，１８を外側から配管１１２（或いは配管１１４）に締め付けることで、配管１１２（或いは配管１１４）に止水材抑え具１０を取り付ける。ここで、フランジ部分１２，１４面と継手ボックス１００の壁面との間の止水材２０の幅Ｌは、仮止めに用いた水中パテを例えば隅肉溶接状に塗り込んだ寸法の２倍以上にすると好適である。 As described above, the semi-cylindrical members 16 and 18 are fastened to the pipe 112 (or the pipe 114) from the outside by using the fixing band 30 to attach the water stop material suppressor 10 to the pipe 112 (or the pipe 114). Here, the width L of the water blocking material 20 between the flange portions 12 and 14 and the wall surface of the joint box 100 is at least twice the size of the underwater putty used for temporary fixing, for example, fillet welded. Is preferable.
以上のように止水材抑え具１０で止水材２０を抑え込むことで、止水材２０の経年劣化や地下水の水圧により止水材２０が剥がれ落ちることを防止できる。また、実施の形態１では、止水材２０に水膨張シール材を用いるため、止水材２０が地下水を吸収して膨張するも止水材抑え具１０によって抑え込まれているので、さらに、止水効果を向上させることができる。 By suppressing the water stop material 20 with the water stop material holding tool 10 as described above, it is possible to prevent the water stop material 20 from peeling off due to aging deterioration of the water stop material 20 or water pressure of the groundwater. Moreover, in Embodiment 1, since a water expansion sealing material is used for the water stop material 20, since the water stop material 20 absorbs groundwater and expands, it is restrained by the water stop material restraining tool 10. The water stop effect can be improved.
以上のように、実施の形態１によれば、止水材２０が剥がれることを防止すると共に、既に配管１１４，１１６同士が継手１１８によって接続された後からでも止水工事の施工ができる。 As described above, according to the first embodiment, it is possible to prevent the water-stopping material 20 from being peeled off and to perform the water-stopping work even after the pipes 114 and 116 are already connected to each other by the joint 118.
ここで、継手ボックス１００では、図２に示したように、ボックス本体１２０の側壁の内側或いは外側に上方から調整枠１２２を差し込み、ボックス本体１２０上に調整枠１２２を載置する。そのため、ボックス本体１２０の側壁と調整枠１２２側壁との隙間（Ｂ部）から地下水が継手ボックス１００内に漏れ出してしまう。そのため、従来、ボックス本体１２０の側壁と調整枠１２２側壁との隙間にやはりパテ材を塗り込み、かかる地下水の侵入を防止していた。しかしながら、上述したように、かかる施工では、パテ材の経年劣化や地下水の水圧によりパテ材が剥がれ落ちてしまう。そこで実施の形態１では、硬化シートをボックス本体１２０の側壁と調整枠１２２側壁との繋ぎ目に沿って貼りつける。 Here, in the joint box 100, as shown in FIG. 2, the adjustment frame 122 is inserted from above into the inside or outside of the side wall of the box body 120, and the adjustment frame 122 is placed on the box body 120. Therefore, groundwater leaks into the joint box 100 from the gap (B portion) between the side wall of the box body 120 and the side wall of the adjustment frame 122. Therefore, conventionally, putty material is also applied to the gap between the side wall of the box main body 120 and the side wall of the adjustment frame 122 to prevent the intrusion of the groundwater. However, as described above, in such construction, the putty material is peeled off due to the aged deterioration of the putty material or the water pressure of the groundwater. Therefore, in the first embodiment, the cured sheet is attached along the joint between the side wall of the box body 120 and the side wall of the adjustment frame 122.
図１２は、実施の形態１における壁面同士のつなぎ目の止水対策の手法を示す図である。図１２に示すように、硬化シート５０をボックス本体１２０の側壁と調整枠１２２側壁との繋ぎ目に沿って貼りつける。例えば、繋ぎ目全体（１周分）に硬化シート５０を貼りつけるとより望ましい。硬化シート５０は、例えば、紫外線硬化型シートを用いると好適である。例えば、エポキシアクリレート樹脂に光硬化剤を塗布したシートを用いると好適である。さらに、強化材シートを積層させるとなお良い。 FIG. 12 is a diagram illustrating a technique for water stoppage measures at the joint between the wall surfaces in the first embodiment. As shown in FIG. 12, the cured sheet 50 is attached along the joint between the side wall of the box body 120 and the side wall of the adjustment frame 122. For example, it is more desirable to apply the cured sheet 50 to the entire joint (one turn). For example, an ultraviolet curable sheet is preferably used as the cured sheet 50. For example, it is preferable to use a sheet obtained by applying a photocuring agent to an epoxy acrylate resin. Furthermore, it is better to laminate reinforcing material sheets.
施工方法として、例えば、ボックス本体１２０の側壁と調整枠１２２側壁との繋ぎ目に沿って、繋ぎ目からそれぞれ所定の幅でボックス本体１２０の側壁と調整枠１２２側壁にプライマー処理を施し、その上に硬化シート５０を貼りつける。その後、硬化シート５０に紫外線や熱等のエネルギーを照射して、硬化させる。例えば、紫外線ライトを当てる。硬化シート５０自体は柔らかいので貼り付け場所の自由度が大きく、止水施工を容易にすることできる。さらに、一旦硬化させた後は機械的強度が大きいので、地下水の水圧に耐えることができる。さらに、かかる機械的強度によって継手ボックス１００自体の機械的強度を向上させることができる。また、硬化シート５０は透明なシートを用いるとさらに好適である。透明シートを用いることで継ぎ目を見ながら施工できる。また、水中パテで仮止めした後に硬化シート５０を貼りつけても好適である。 As a construction method, for example, along the joint between the side wall of the box body 120 and the side wall of the adjustment frame 122, primer treatment is performed on the side wall of the box body 120 and the side wall of the adjustment frame 122 with a predetermined width from the joint, The cured sheet 50 is affixed to. Thereafter, the cured sheet 50 is irradiated with energy such as ultraviolet rays or heat to be cured. For example, an ultraviolet light is applied. Since the cured sheet 50 itself is soft, the degree of freedom of the pasting place is large, and water stop construction can be facilitated. Furthermore, once cured, it has a high mechanical strength and can withstand the water pressure of groundwater. Furthermore, the mechanical strength of the joint box 100 itself can be improved by such mechanical strength. The cured sheet 50 is more preferably a transparent sheet. Construction can be done while looking at the seam by using a transparent sheet. Further, it is also preferable to attach the cured sheet 50 after temporarily fixing with an underwater putty.
以上、具体例を参照しつつ実施の形態について説明した。しかし、本発明は、これらの具体例に限定されるものではない。上述した例では、半円筒部材１６，１８が蝶番１９で繋がれている場合を示したがこれに限るものではない。半円筒部材１６，１８は配管１１２等を挟み込めればよく、別体として分離していても良い。さらに、半円筒部材２つを挟み込むリンク状部材を複数設けた構成であっても問題無い。 The embodiments have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In the above-described example, the case where the semicylindrical members 16 and 18 are connected by the hinge 19 is shown, but the present invention is not limited to this. The semi-cylindrical members 16 and 18 only need to sandwich the pipe 112 or the like, and may be separated as separate bodies. Furthermore, there is no problem even if it is a configuration in which a plurality of link-like members sandwiching two semi-cylindrical members are provided.
また、装置構成や制御手法等、本発明の説明に直接必要しない部分等については記載を省略したが、必要とされる装置構成や制御手法を適宜選択して用いることができる。 In addition, although descriptions are omitted for parts and the like that are not directly required for the description of the present invention, such as a device configuration and a control method, a required device configuration and a control method can be appropriately selected and used.
その他、本発明の要素を具備し、当業者が適宜設計変更しうる全ての異常検知方法及び異常検知装置は、本発明の範囲に包含される。 In addition, all abnormality detection methods and abnormality detection apparatuses that include the elements of the present invention and that can be appropriately modified by those skilled in the art are included in the scope of the present invention.
１０ 止水材抑え具
１２，１４ フランジ部分
１３，１５ 重ね合わせ部分
１６，１８ 半円筒部材
１９ 蝶番
２０ 止水材
３０ 固定バンド
１００ 継手ボックス
１０２ 貯蔵タンク
１０４ 計量機
１０６ タンクローリー車
１１２，１１４ 配管
１１６ 注入口
１２０ ボックス本体
１２２ 調整枠
１２４ マンホール蓋
１３０ 放出弁
３００ 車両
DESCRIPTION OF SYMBOLS 10 Water stop material restraining tool 12, 14 Flange part 13, 15 Overlapping part 16, 18 Semi-cylindrical member 19 Hinge 20 Water stop material 30 Fixed band 100 Joint box 102 Storage tank 104 Weighing machine 106 Tank truck 112, 114 Piping 116 Note Inlet 120 Box body 122 Adjustment frame 124 Manhole cover 130 Release valve 300 Vehicle
Claims (5)
一方が前記第１の半円筒部材の端部に前記第１の半円筒部材の半円周に沿って接続され、他方が前記第２の半円筒部材の端部に前記第２の半円筒部材の半円周に沿って接続された、一体となって、前記配管と前記壁面との隙間を覆う止水材を前記壁面に押圧する第１と第２のフランジ部分と、
を備えたことを特徴とする止水材抑え具。 A pair of first and second semi-cylindrical members which are formed so as to be able to sandwich a circular pipe protruding from the wall surface from the outside and are attached to the pipe by being tightened from the outside using a band;
One is connected to the end of the first semi-cylindrical member along the semi-circumference of the first semi-cylindrical member, and the other is connected to the end of the second semi-cylindrical member. A first flange portion and a second flange portion, which are connected along a semicircular circumference of the pipe and integrally press the water stop material covering the gap between the pipe and the wall surface against the wall surface;
A water-stopping material holding device characterized by comprising:
地下に埋設された円形の配管同士を繋ぐ配管継手を格納する地下に埋設された配管継手ボックスの壁面から前記配管継手ボックス内部に突き出た前記配管を前記第１と第２の半円筒部材で挟み込む工程と、
前記第１と第２の半円筒部材で前記配管を挟み込んだ状態で、前記第１と第２のフランジ部分の各面に塗布された前記止水材を前記壁面に押圧しながらバンドを用いて前記第１と第２の半円筒部材を外側から締め付けることによって前記配管に前記止水材抑え具を取り付ける工程と、
を備えたことを特徴とする地下埋設型配管継手ボックスの止水方法。 A pair of first and second semi-cylindrical members, one of which is connected to the end of the first semi-cylindrical member along the semicircular circumference of the first semi-cylindrical member, and the other is the second semi-cylindrical member Using a water stop material pressing tool having first and second flange portions connected to the end of the semi-cylindrical member along the semi-circumference of the second semi-cylindrical member, the first and second Applying a waterstop to the surface of the second flange portion;
The pipe projecting from the wall surface of the pipe joint box buried underground to store the pipe joint connecting the circular pipes buried underground is sandwiched between the first and second semi-cylindrical members. Process,
Using a band while pressing the water-stopping material applied to each surface of the first and second flange portions with the piping sandwiched between the first and second semi-cylindrical members. Attaching the water stop material restrainer to the pipe by tightening the first and second semi-cylindrical members from the outside;
A waterproofing method for an underground buried pipe joint box characterized by comprising:
前記第１と第２のフランジ部分は、前記第１と第２のフランジ部分の各面に塗布された前記止水材と前記壁面に塗布された前記止水材とを合わせて前記壁面に押圧することを特徴とする請求項４記載の地下埋設型配管継手ボックスの止水方法。 Further comprising a step of applying a water stop material to the wall surface along the outer periphery of the pipe;
The first and second flange portions are pressed against the wall surface by combining the water stop material applied to each surface of the first and second flange portions and the water stop material applied to the wall surface. The water-stopping method for underground buried pipe joint boxes according to claim 4.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2020050351A (en) * | 2018-09-21 | 2020-04-02 | Ｊｘｔｇエネルギー株式会社 | Upper box of embedded underground tank and embedding method thereof |
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