JP7260109B2 - Ground type septic tank - Google Patents

Ground type septic tank Download PDF

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JP7260109B2
JP7260109B2 JP2019019069A JP2019019069A JP7260109B2 JP 7260109 B2 JP7260109 B2 JP 7260109B2 JP 2019019069 A JP2019019069 A JP 2019019069A JP 2019019069 A JP2019019069 A JP 2019019069A JP 7260109 B2 JP7260109 B2 JP 7260109B2
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septic tank
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JP2020126001A (en
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秀史 亘
弘之 佐藤
浩 河原
匡宜 藤村
明人 染井
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Chiyoda Technol Corp
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Description

本発明は、地上設置型浄化槽に係り、特に、放射性物質などの管理が必要な物質を投与した患者の屎尿などを処理する際に用いるのに好適な、地上設置可能な耐震強度を有し、目視による外周の日常点検が可能な地上設置型浄化槽に関する。 The present invention relates to a ground-mounted septic tank, and in particular, it has an earthquake-resistant strength suitable for use in treating the human waste of patients who have been administered substances requiring management such as radioactive substances, and can be installed on the ground. The present invention relates to a ground-mounted septic tank capable of daily visual inspection of the outer periphery.

屎尿を処理する浄化槽は、例えば特許文献１に記載されているように、図１に７人槽の場合で例示する如く、通常、地中に埋込んで設置され、周囲から加わる土圧により形状を保つようにされている。 A septic tank for treating human waste is usually installed buried in the ground, as described in Patent Document 1, for example, in the case of a seven-person tank in FIG. are designed to keep

図において、１０はボディ、１２はマンホール、１４は流入管、１６は放流管、１８は砕石、１９は捨てコンクリートである。 In the figure, 10 is a body, 12 is a manhole, 14 is an inflow pipe, 16 is a discharge pipe, 18 is crushed stone, and 19 is dump concrete.

なお、例えば特許文献２には、浄化槽の付帯設備である合併処理化装置を地上に設置することが記載されているが、浄化槽本体を地上に設置することは考えられていなかった。 For example, Patent Document 2 describes that a combined treatment system, which is ancillary equipment of a septic tank, is installed on the ground, but installation of the septic tank main body on the ground was not considered.

特開２０１４－６５０１７号公報JP 2014-65017 A 特開２００２－１３６９８２号公報JP-A-2002-136982

一方、例えば放射性物質を投与した患者の屎尿を処理する放射性液体処理用の浄化槽においては、放射性物質の漏えいを日常点検で目視したいが、地中埋込型浄化槽では不可能であった。 On the other hand, for example, in a septic tank for processing radioactive liquids that treat the excreta of patients who have been administered radioactive substances, it is desirable to visually check for leakage of radioactive substances during daily inspections, but this is not possible with underground septic tanks.

なお、従来の地中埋込型浄化槽をそのまま地上設置して転倒防止用のベルトで固定することも考えられるが、耐震性能が評価されておらず、耐震強度に問題があり、例えば建築設備耐震設計・施工指針で、地階及び１階（地表）に設置する病院の放射性物質の水槽に要求される耐震クラスＳの１．５Ｇを満足することはできなかった。 It is conceivable to install a conventional underground septic tank on the ground and fix it with a belt to prevent it from falling over, but its seismic performance has not been evaluated and there is a problem with its seismic strength. According to the design and construction guidelines, it was not possible to satisfy the seismic class S requirement of 1.5G, which is required for the hospital's radioactive water tanks installed on the basement and first floor (ground surface).

本発明は、前記従来の問題点を解消するべくなされたもので、地上設置可能な耐震強度を有し、外周における放射性物質の漏えい状態などを目視により日常点検することが可能な地上設置型浄化槽を提供することを課題とする。 The present invention has been made to solve the above-mentioned conventional problems, and has an earthquake resistance strength that can be installed on the ground, and a ground-installed septic tank that allows daily inspection of the leakage of radioactive substances around the periphery by visual inspection. The task is to provide

本発明は、ＦＲＰ資材を型に吹き付けるスプレーアップ方式によって、少なくとも固定ラグ取付部を含む下半部及び液体の重さによる力が働き割れが生じ易い肩部の厚みを増やすことによって製造されたボディと、該ボディの側面に固定された固定ラグと、該固定ラグを地上に固定するための固定手段と、を備えたことを特徴とする地上設置型浄化槽により、前記課題を解決するものである。 The present invention is a body manufactured by increasing the thickness of at least the lower half including the fixed lug mounting portion and the shoulder portion where cracks are likely to occur due to the force of the weight of the liquid by the spray-up method of spraying the FRP material onto the mold. , a fixed lug fixed to the side surface of the body, and fixing means for fixing the fixed lug to the ground. .

ここで、前記ボディを、前記固定手段により、骨材を組んだフレームに固定することができる。 Here, the body can be fixed to a frame made of aggregates by the fixing means.

又、前記フレームのボディ底面対応部を、空間とすることができる。 Also, the portion of the frame corresponding to the bottom surface of the body can be a space.

又、前記ボディを、前記固定手段により、コンクリート基礎に固定することができる。 Also, the body can be fixed to a concrete foundation by the fixing means.

本発明によれば、従来は地中に埋込まれていた浄化槽を地上に設置することが可能になり、例えば放射性物質などの漏えい状態を外周から目視することが可能となって、安全性を向上することができる。 According to the present invention, it becomes possible to install a septic tank on the ground, which was conventionally buried in the ground. can be improved.

従来の地中埋込型浄化槽の一例である７人槽の構成を示す縦断面図Longitudinal cross-sectional view showing the configuration of a seven-person tank, which is an example of a conventional underground septic tank 本発明の第１実施形態である７人槽の構成を示す（Ａ）平面図、（Ｂ）Ｂ－Ｂ線に沿う縦断面図、及び、（Ｃ）Ｃ－Ｃ線に沿う横断面図(A) A plan view, (B) a vertical cross-sectional view along the BB line, and (C) a cross-sectional view along the CC line showing the configuration of the seven-seat tank that is the first embodiment of the present invention. 同じく固定ラグを示す（Ａ）正面図、（Ｂ）側面図、及び、（Ｃ）平面図(A) Front view, (B) Side view, and (C) Plan view showing the same fixed lug 第１実施形態を鉄骨フレームに直接固定した状態を示す（Ａ）側面図、及び、（Ｂ）正面図(A) A side view and (B) a front view showing a state in which the first embodiment is directly fixed to a steel frame. 同じく鉄骨フレームの平面図Plan view of the same steel frame 第１実施形態をコンクリート基礎に固定した状態を示す（Ａ）側面図、及び、（Ｂ）正面図(A) A side view and (B) a front view showing a state in which the first embodiment is fixed to a concrete foundation. 同じく鉄骨フレーム上の鋼板に固定した状態を示す（Ａ）側面図、及び、（Ｂ）正面図(A) A side view and (B) a front view similarly showing a state fixed to a steel plate on a steel frame 本発明の第２実施形態である５人槽を鉄骨フレームに直接固定した状態を示す（Ａ）平面図、（Ｂ）Ｂ－Ｂ線に沿う縦断面図、及び、（Ｃ）Ｃ－Ｃ線に沿う横断面図(A) A plan view, (B) a longitudinal sectional view along the BB line, and (C) the CC line showing a state in which a five-person tank according to the second embodiment of the present invention is directly fixed to a steel frame. cross section along 同じく鉄骨フレームの平面図Plan view of the same steel frame

以下、図面を参照して、本発明の実施の形態について詳細に説明する。なお、本発明は以下の実施形態及び実施例に記載した内容により限定されるものではない。又、以下に記載した実施形態及び実施例における構成要件には、当業者が容易に想定できるもの、実質的に同一のもの、いわゆる均等の範囲のものが含まれる。更に、以下に記載した実施形態及び実施例で開示した構成要素は適宜組み合わせてもよいし、適宜選択して用いてもよい。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the present invention is not limited by the contents described in the following embodiments and examples. In addition, the configuration requirements in the embodiments and examples described below include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that fall within the so-called equivalent range. Furthermore, the constituent elements disclosed in the embodiments and examples described below may be combined as appropriate, or may be selected and used as appropriate.

７人槽に適用した本発明の第１実施形態は、図２に示す如く、図１に例示したような地中埋込型浄化槽のボディ１０より肉厚を増やすことによって強化された浄化槽ボディ（単にボディとも称する）２０と、該ボディ２０の側面に固定された固定ラグ２８と、該固定ラグ２８を地上に固定するための固定手段である固定用ボルト３０とを備えたものである。図において、２２はマンホール、２４は流入管、２６は放流管である。 As shown in FIG. 2, the first embodiment of the present invention applied to a seven-seat tank is a septic tank body ( 20, fixed lugs 28 fixed to the side surfaces of the body 20, and fixing bolts 30 as fixing means for fixing the fixed lugs 28 to the ground. In the figure, 22 is a manhole, 24 is an inflow pipe, and 26 is a discharge pipe.

地中埋込型浄化槽のボディ１０は、通常、射出成型によって製作されることが多いが、その場合、成形に用いた型どおりの製品しか製作できず、ボディを強化するための改造を行う余地はない。そこで、本実施形態では、ＦＲＰ資材を型に吹き付けて製作を行うスプレーアップ方式により製作される浄化槽を用い、スプレー時間を長くすることによって、少なくとも固定ラグ取付部を含む下半部と、液体の重さによる力が働き割れが生じ易い肩部のボディ１０の厚みを通常より増やすことによってボディ２０を強化している。これにより、耐震保証するための仕様で製作をすることが可能になる。 The body 10 of an underground septic tank is usually manufactured by injection molding, but in that case, only the product that is used for molding can be manufactured, and there is room for remodeling to strengthen the body. no. Therefore, in this embodiment, a septic tank manufactured by a spray-up method that is manufactured by spraying FRP material on a mold is used, and by increasing the spray time, at least the lower half including the fixed lug attachment part and the liquid The body 20 is strengthened by increasing the thickness of the body 10 at the shoulders where cracks are likely to occur due to the weight of the body. As a result, it becomes possible to manufacture with specifications for assuring earthquake resistance.

更に、固定用ボルト３０の耐震保証のため、ボディ２０の側面に固定ラグ２８を用いている。この固定ラグ２８は、ボディ２０の側面の強度を高めるリブの作用も有する。 Furthermore, a fixing lug 28 is used on the side surface of the body 20 to ensure that the fixing bolt 30 is earthquake resistant. The fixing lugs 28 also act as ribs that strengthen the sides of the body 20 .

前記固定ラグ２８は、例えばＦＲＰ製で、図３に詳細に示す如く、ボディ２０の形状に沿う端面２８Ａを有するＵ字形状とされている。この固定ラグ２８は、Ｕ字形状の成形型（例えばＦＲＰ製）の上にＦＲＰを手作業で積層して脱型し、その後、浄化槽ボディ２０の曲面に合わせたゲージ（例えば塩化ビニル製）を用いて固定ラグ２８の側面部を切断することにより製造することができる。 The fixed lug 28 is made of FRP, for example, and is U-shaped with an end surface 28A along the shape of the body 20, as shown in detail in FIG. This fixed lug 28 is made by manually laminating FRP on a U-shaped mold (made of FRP, for example) and removing the mold. It can be manufactured by cutting the sides of the fixing lug 28 using a tool.

前記固定ラグ２８は、浄化槽ボディ２０に固定ラグ２８を突合せ、その周囲に樹脂を含浸させたガラスマットを配置し、ローラーで転圧して接合することにより、浄化槽ボディ２０の側面に固定される。この固定ラグ２８と、ボディ２０の間の隙間にはパテなどの充填材３２が充填されている。 The fixed lug 28 is fixed to the side surface of the septic tank body 20 by abutting the fixed lug 28 against the septic tank body 20, arranging a resin-impregnated glass mat around the fixed lug 28, and rolling and joining the mats with a roller. A gap between the fixed lug 28 and the body 20 is filled with a filler 32 such as putty.

前記固定ラグ２８は、更に、その底面に開けられた固定用穴２８Ｂに固定用ボルト３０を通すことによって固定される。 The fixing lug 28 is further fixed by passing a fixing bolt 30 through a fixing hole 28B formed in the bottom surface thereof.

上記の浄化槽ボディ２０の厚み増加による本体強度の増加と、固定手段（例えば固定用ボルト３０）の耐震強度保証のための浄化槽ボディ２０への固定ラグ２８の取付によって、耐震強度保証を行うことが可能となる。 By increasing the thickness of the septic tank body 20 to increase the strength of the main body, and by attaching fixing lugs 28 to the septic tank body 20 for assuring the quake-resistant strength of fixing means (for example, fixing bolts 30), it is possible to guarantee the quake-resistant strength. It becomes possible.

前記地上設置型浄化槽の地上への固定方法を説明する。 A method for fixing the ground-installed septic tank to the ground will be described.

図４は、例えば鉄骨フレーム４２を地表４０に配設し、その上に浄化槽ボディ２０を設置すると共に、アンカーボルト４４により鉄骨フレーム４２を地表４０に固定した例である。 FIG. 4 shows an example in which, for example, a steel frame 42 is arranged on the ground surface 40, the septic tank body 20 is installed thereon, and the steel frame 42 is fixed to the ground surface 40 with anchor bolts 44. As shown in FIG.

鉄骨フレーム４２は、図５に平面図を例示する如く、全長に亘る長手方向ビーム４２Ａと分割された短い幅方向ビーム４２Ｂを有し、浄化槽ボディ２０の底面対応部を空間４２Ｃとすると共に、固定ラグ２８の対応部に幅方向ビーム４２Ｂを渡して固定ラグ２８の固定を容易とすることができる。これにより必要なフレーム強度を確保した上で、浄化槽ボディ２０の底面を含む６面全部の点検が可能となる。 As shown in the plan view of FIG. 5, the steel frame 42 has a longitudinal beam 42A extending over the entire length and a split short width beam 42B. A transverse beam 42B can span the corresponding portion of the lug 28 to facilitate fixation of the fixed lug 28. As shown in FIG. With this arrangement, it is possible to inspect all six sides of the septic tank body 20, including the bottom, while securing the necessary frame strength.

なお、鉄骨フレーム４２の高さが高い場合には、後出図７に例示するように、中間部に水平方向中間ビーム４２Ｄ、４２Ｅを追加することができる。 If the height of the steel frame 42 is high, horizontal intermediate beams 42D and 42E can be added to the intermediate portion as illustrated in FIG. 7 which will be described later.

図６は、地表４０上に敷設したコンクリート基礎４６に、固定用ボルト３０を用いて浄化槽ボディ２０を固定したものである。 FIG. 6 shows a septic tank body 20 fixed to a concrete foundation 46 laid on the ground surface 40 using fixing bolts 30 .

この場合には、浄化槽ボディ２０を安価に地表４０に固定することができる。 In this case, the septic tank body 20 can be fixed to the ground surface 40 at low cost.

図７は、鉄骨フレーム４２に鋼板４８を敷設し、その上に浄化槽ボディ２０を設置した例である。 FIG. 7 shows an example in which a steel plate 48 is laid on a steel frame 42 and a septic tank body 20 is installed thereon.

この場合には、鋼板４８上に浄化槽ボディ２０を安定して強固に固定できる。 In this case, the septic tank body 20 can be fixed stably and firmly on the steel plate 48 .

図７の例において、鋼板４８の浄化槽ボディ２０の底面対応部に点検用開口を設けて、浄化槽ボディ２０の底面を含む６面点検を可能とすることもできる。 In the example of FIG. 7, an inspection opening may be provided in the portion of the steel plate 48 corresponding to the bottom surface of the septic tank body 20 to enable inspection of six sides including the bottom surface of the septic tank body 20.

なお、前記第１実施形態においては、本発明が７人用の浄化槽に適用されていたが、本発明の適用対象はこれに限定されず、５人用の浄化槽に適用した第２実施形態を鉄骨フレーム４２に固定した状態を図８に示すように、５人用の浄化槽にも同様に適用できる。 In the first embodiment, the present invention is applied to a septic tank for seven people, but the application target of the present invention is not limited to this, and the second embodiment applied to a septic tank for five people is applied. As shown in FIG. 8 in which it is fixed to a steel frame 42, it can also be applied to a septic tank for five people.

この５人用の浄化槽は、ボディ２０が小型化されマンホール２２が３つに減り、固定ラグ２８の数も片面２個に減っている点を除き、基本的に第１実施形態の７人槽と同じであるので、説明は省略する。 This five-person septic tank is basically the seven-person tank of the first embodiment, except that the body 20 is made smaller, the number of manholes 22 is reduced to three, and the number of fixing lugs 28 is also reduced to two on each side. is the same as , so the description is omitted.

本実施形態における鉄骨フレーム４２の平面形状を図９に示す。 FIG. 9 shows the planar shape of the steel frame 42 in this embodiment.

固定ラグ２８の設置個数は、ボディ２０の強度に応じて適宜選定することが可能である。 The number of fixing lugs 28 to be installed can be appropriately selected according to the strength of the body 20 .

前記実施形態においては、本発明が、７人槽及び５人槽に適用されていたが、本発明の適用対象はこれに限定されず、他のサイズの浄化槽にも同様に適用できる。 In the above embodiment, the present invention was applied to a 7-person tank and a 5-person tank, but the scope of application of the present invention is not limited to this, and can be similarly applied to septic tanks of other sizes.

又、固定ラグ２８などの材質もＦＲＰに限定されず、固定手段も固定用ボルト３０に限定されない。鉄骨フレーム４２の骨材も鉄骨に限定されない。 Further, the material of the fixing lugs 28 and the like is not limited to FRP, and the fixing means is not limited to the fixing bolts 30 either. The aggregate of the steel frame 42 is also not limited to the steel frame.

２０…（浄化槽）ボディ
２２…マンホール
２４…流入管
２６…放流管
２８…固定ラグ
２８Ｂ…固定用穴
３０…固定用ボルト
３２…充填材
４０…地表
４２…鉄骨フレーム
４２Ａ…長手方向ビーム
４２Ｂ…幅方向ビーム
４２Ｃ…空間
４２Ｄ、４２Ｅ…水平方向中間ビーム
４４…アンカーボルト
４６…コンクリート基礎
４８…鋼板 20 (septic tank) body 22 manhole 24 inflow pipe 26 discharge pipe 28 fixing lug 28B fixing hole 30 fixing bolt 32 filler 40 ground surface 42 steel frame 42A longitudinal beam 42B width Directional beam 42C Space 42D, 42E Horizontal intermediate beam 44 Anchor bolt 46 Concrete foundation 48 Steel plate

Claims (4)

ＦＲＰ資材を型に吹き付けるスプレーアップ方式によって、少なくとも固定ラグ取付部を含む下半部及び液体の重さによる力が働き割れが生じ易い肩部の厚みを増やすことによって製造されたボディと、
該ボディの側面に固定された固定ラグと、
該固定ラグを地上に固定するための固定手段と、
を備えたことを特徴とする地上設置型浄化槽。 a body manufactured by increasing the thickness of at least the lower half including the fixing lug mounting portion and the shoulder portion where cracks are likely to occur due to the weight of the liquid, by a spray-up method in which the FRP material is sprayed onto the mold;
fixed lugs fixed to the sides of the body;
fixing means for fixing the fixing lug to the ground;
A ground-mounted septic tank characterized by comprising: 前記ボディが、前記固定手段により、骨材を組んだフレームに固定されていることを特徴とする請求項１に記載の地上設置型浄化槽。 2. The ground-mounted septic tank according to claim 1, wherein said body is fixed to a frame made of aggregate by said fixing means. 前記フレームのボディ底面対応部が、空間とされていることを特徴とする請求項２に記載の地上設置型浄化槽。 3. The ground-mounted septic tank according to claim 2, wherein the body bottom corresponding portion of the frame is a space. 前記ボディが、前記固定手段により、コンクリート基礎に固定されていることを特徴とする請求項１に記載の地上設置型浄化槽。 2. The ground-mounted septic tank according to claim 1, wherein said body is fixed to a concrete foundation by said fixing means.
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JP2000301179A (en) 1999-04-22 2000-10-31 Hitachi Chem Co Ltd Foundation plate for septic tank, septic tank and its construction
JP2001097483A (en) 1999-09-29 2001-04-10 Fuji Kako Kk Multistage tower vessel made of fiber reinforced plastic
JP2005291960A (en) 2004-03-31 2005-10-20 Toshiba Corp Apparatus and method for storing fuel cask
JP2005337272A (en) 2004-05-24 2005-12-08 Murata Mach Ltd Frp-made pressure vessel

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