JPH07117200B2 - Drainage pipe - Google Patents

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は埋立地の雨水の集排水に用いる排水管路に関す
るものである。TECHNICAL FIELD The present invention relates to a drainage pipe used for collecting and draining rainwater in a landfill.

〈従来の技術〉 埋立地の水はけをよくし、沈下、地すべり等を防止する
ために埋立地に排水管路を埋設することが必要である。<Prior art> It is necessary to bury drainage pipes in the landfill site in order to improve drainage and prevent subsidence and landslides.

従来、プラスチック管を使用した排水管路として、第６
図に示すように、一本の排水主管路１′の両側面に沿い
所定の間隔で集水用枝管21′，……並びに22′，……を
連結し、集水用枝管21′，……並びに22′，……で集水
した雨水を排水主管路１′に合流させて溝、河川、海等
に放水するものが公知である。Conventionally, as a drainage pipeline using a plastic pipe,
As shown in the figure, the branch pipes 21 'for collecting water are connected by connecting the branch pipes for collecting water 21', ... And 22 ',. It is well known that the rainwater collected at 22 'and 22' is combined with the main drainage pipe 1'and discharged to a groove, river, sea or the like.

又、コンクリート製のボックスカルバートを使用した排
水管路の場合も、上記と同様に集水用枝管により合流さ
せていた。Further, also in the case of a drainage pipe using a box culvert made of concrete, it was joined by a branch pipe for collecting water in the same manner as above.

〈解決しようとする課題〉 しかしながら、この排水管路においては、排水主管路に
連結される集水用枝管の本数が多く、集水用枝管を経て
主管路内に入ってくる流入水により主管路の下流側が満
水状態となる。空港用埋立地の如く、広範囲の場合、該
主管路に多種類の口径の管種を準備しなければならな
い。また、主管路下流側が満水状態になった場合、その
水量が主管路の下面に接する埋立土砂に相当の荷重とな
って作用し、その単位面積当たりの応力、すなわち圧力
が大となるので、主管路が沈下して接続箇所に水漏れ事
故が発生し易くなる。<Problems to be solved> However, in this drainage pipeline, the number of water collection branch pipes connected to the drainage main pipeline is large, and the inflow water entering the main pipeline via the water collection branch pipe The downstream side of the main pipeline is full of water. In the case of a wide area such as an airport landfill, it is necessary to prepare various kinds of pipes with different diameters in the main pipeline. Also, when the downstream side of the main pipeline is full, the amount of water acts as a considerable load on the landfill that contacts the lower surface of the main pipeline, and the stress per unit area, that is, the pressure becomes large, so the main pipeline The road will sink and water leakage will easily occur at the connection point.

更に、該主管路の口径増大は、導水勾配の関係で埋立深
さを大きくしなければならず、工事費アップにつなが
る。そこで、コンクリート製ボックスカルバートの場合
では、横方向の２連や３連の形状のものを使用して対処
しているが、集水用枝管の現場取付けが大変なうえ、２
連や３連のボックスカルバートの隔壁に連通孔を開孔し
なければならず、強度面でも問題である上に、施工が大
変である。更に、重量が重いため、地耐力を十分に確保
しなければならず、工事費がかさむといった問題があ
る。Further, an increase in the diameter of the main pipeline requires an increase in the landfill depth due to the water guiding gradient, which leads to an increase in construction cost. Therefore, in the case of concrete box culverts, we have dealt with by using two or three lateral shapes, but it is difficult to install the branch pipe for water collection on site and
It is necessary to open a communication hole in the partition wall of a box culvert or a triple box culvert, which is a problem in terms of strength and is difficult to construct. Further, since the weight is heavy, there is a problem that the bearing capacity must be sufficiently secured and the construction cost is increased.

本発明の目的は、多くの集水用枝管からの流入水による
排水主管路の満水状態化を解消するための、多段階の管
口径アップの設計の煩雑さ、及び、満水雨水による排水
主管路の沈下を軽減できる排水管路を提供することにあ
る。The object of the present invention is to eliminate the complexity of designing a multi-stage pipe diameter increase in order to eliminate the flooding of the drainage main pipeline due to the inflow of water from many branch pipes for collecting water, and the drainage main pipe with full rainwater. The purpose of the present invention is to provide a drainage pipeline that can reduce subsidence.

〈課題を解決するための手段〉 本発明に係る排水管路は、並列敷設せる複数本の排水主
管路において、主管路の隣接主管路との対向側面に連通
部を設け、非対向側面に集水用枝管を連結したことを特
徴とする構成である。<Means for Solving the Problem> A drainage pipeline according to the present invention is a plurality of drainage main pipelines that are laid in parallel, in which a communication portion is provided on a side surface of the main pipeline facing the adjacent main pipeline and a collection portion is provided on the non-facing side. The configuration is characterized in that branch pipes for water are connected.

〈実施例の説明〉 以下、図面により本発明の実施例を説明する。<Description of Embodiments> Hereinafter, embodiments of the present invention will be described with reference to the drawings.

第１図は本発明の一実施例を示す説明図である。FIG. 1 is an explanatory view showing an embodiment of the present invention.

第１図において、11,12は並列に敷設した二本の主管路
であり、プラスチック管の接続により構成してある。2
1,……は管路軸に対して左側の主管路例えば11の左側面
に所定の間隔で連通した集水用枝管である。22,……は
右側主管路例えば12の右側面に所定の間隔で連通した集
水用枝管である。集水用枝管の間隔は、埋立地の通水
性、降雨量等を勘案して定める。左側主管路11における
集水用枝管21,21……の間隔と右側主管路12における集
水用枝管22,22,……の間隔とは、通常等しくするが、異
ならしめることもできる。３は両主管路11,12が相対向
せる側面において連通せる連通部である。In FIG. 1, 11 and 12 are two main pipe lines laid in parallel, which are constituted by connecting plastic pipes. 2
1, ... are water collecting branch pipes communicating with the left side surface of the main pipeline on the left side of the pipeline axis, for example, 11 at a predetermined interval. Reference numerals 22, ... are branch pipes for collecting water, which communicate with the right side of the right main pipe, for example, 12 at a predetermined interval. The distance between the branch pipes for water collection shall be determined in consideration of the water permeability of the landfill, rainfall, etc. The interval between the water collecting branch pipes 21, 21 ... In the left main conduit 11 and the interval between the water collecting branch pipes 22, 22, ... In the right main conduit 12 are usually the same, but they can be different. Reference numeral 3 is a communication portion that allows the main pipe lines 11 and 12 to communicate with each other on their side surfaces facing each other.

上記主管路11,112、枝管路21,22にはプラスチック管を
用いる。例えば塩化ビニル管、FRP管、複合FRP管（内
層、外層をFRP管で構成し、中間層をレンジコンクリー
ト層で形成したもの）を用いることができる。これら主
管路のプラスチック管の接続、集水用枝管のプラスチッ
ク管の接続には、ゴムリングを介しての受口・挿口方式
等、埋立地の不等沈下に対処し得る可撓接続を用いる。Plastic pipes are used for the main pipelines 11 and 112 and the branch pipelines 21 and 22. For example, a vinyl chloride pipe, an FRP pipe, or a composite FRP pipe (in which the inner layer and the outer layer are FRP pipes and the intermediate layer is a range concrete layer) can be used. For connecting the plastic pipes of these main pipelines and the plastic pipes of the water collecting branch pipes, flexible connections that can deal with uneven settlement of landfills, such as a receiving / inserting method via rubber rings, are used. To use.

主管路への集水用枝管の連結には、主管路を構成するプ
ラスチック管に短管を取付け、この短管に集水用枝管を
接続する構成を使用できる。また、上記主管路用プラス
チック管に、ゴムリングを介して受口・挿口方式によっ
て接続される短管付補助プラスチック管を当該主管用プ
ラスチック管の数本おきに接続し、該短管付補助プラス
チック管の短管に集水用枝管を接続することもできる。For connecting the water collecting branch pipe to the main pipe, a structure in which a short pipe is attached to a plastic pipe forming the main pipe and the water collecting branch pipe is connected to the short pipe can be used. In addition, an auxiliary plastic pipe with a short pipe connected to the above-mentioned plastic pipe for the main pipe by a receiving / inserting method through a rubber ring is connected to every few plastic pipes for the main pipe, and the auxiliary pipe with the short pipe is connected. It is also possible to connect a branch pipe for collecting water to the short pipe of the plastic pipe.

第２図Ａ並びに第２図Ｂは、主管路用プラスチック管ま
たは補助プラスチック管１への短管４の取付構造を示し
ている。2A and 2B show a mounting structure of the short pipe 4 to the plastic pipe for the main pipe or the auxiliary plastic pipe 1.

第２図Ａにおいては、プラスチック管１に孔を明け、こ
の孔に短管４を挿し込み、この短管４をプラスチック管
１にポリエステル樹脂含浸ガラス繊維からなる補強層５
で接合固定してある。In FIG. 2A, a hole is opened in the plastic tube 1, a short tube 4 is inserted into this hole, and the short tube 4 is attached to the plastic tube 1 by a reinforcing layer 5 made of polyester resin-impregnated glass fiber.
It is fixed by joining.

第２図Ｂにおいては、短管４に鍔41を設け、この鍔41を
プラスチック管１の孔周囲の内面に接着してある。In FIG. 2B, the short tube 4 is provided with a collar 41, and this collar 41 is bonded to the inner surface of the plastic tube 1 around the hole.

上記排水主管路相互間の連通部３は、排水管路の一径間
（ピット間）において１箇所以上、適当数設ければよ
く、その連通手段としては、上記した主管路用プラスチ
ックに短管を取付け、左右の主管路をこの短管を用いて
相互に連通するか、または上記した短管付補助プラスチ
ック管を左右の各主管路中に接続し、これらの補助プラ
スチック管の短管を相互に連通することにより行い得
る。The communication portion 3 between the drainage main pipelines may be provided in one or more places in one diameter (between the pits) of the drainage pipeline, and an appropriate number thereof may be provided. The communication means may be the above-mentioned plastic for the main pipeline or a short pipe. And connect the left and right main pipes to each other using this short pipe, or connect the above-mentioned auxiliary plastic pipe with a short pipe to each of the left and right main pipes, and connect the short pipes of these auxiliary plastic pipes to each other. It can be done by communicating with.

この短管の相互連通には、第３図Ａに示すように、カラ
ー６の両端に各短管４を挿入し、カラー６と各短管４と
の間を、パッキング等により水密化する構成、第３図Ｂ
に示すように短管4,40を相互に差込接続し、その間をパ
ッキング等により水密化する構成または、第３図Ｃに示
すように短管４、４の間を伸縮性継手７で接続する構成
等を使用できる。また、第３図Ｄに示すように、上記し
た補助用プラスチック管１を左右並列に配し、この並列
管を短管４で一体に接続してユニット化したものを使用
してもよく、この場合、 一方の補助用プラスチック管に枝管連結用短管41を取付
けておくこと、あるいは、点線で示すようにコンクリー
ト８で胴巻補強しておくことも可能である。As shown in FIG. 3A, the short pipes 4 are inserted into both ends of the collar 6 so that the short pipes are water-tightened by packing or the like between the collars 6 and the short pipes 4 as shown in FIG. 3A. , Fig. 3B
As shown in Fig. 3, the short pipes 4 and 40 are inserted and connected to each other, and the space between them is made watertight by packing or the short pipes 4 and 4 are connected by an elastic joint 7 as shown in Fig. 3C. It is possible to use a configuration or the like. Further, as shown in FIG. 3D, the above-mentioned auxiliary plastic pipes 1 may be arranged in parallel on the left and right, and the parallel pipes may be integrally connected by a short pipe 4 to form a unit. In this case, it is possible to attach the branch pipe connecting short pipe 41 to one of the auxiliary plastic pipes or to reinforce the body with concrete 8 as shown by the dotted line.

本発明においては、上記実施例が示す通り、各主管路の
片側側面にのみ集水用枝管を連通しており、一主管路の
両側面に集水用枝管を連通している従来例に較べて、一
主管路に連結する集水用枝管の本数を半分にできるの
で、集水用枝管から一排水主管路に流入する流入量を半
減でき、各排水主管路が満水状態になるのを軽減でき
る。勿論、排水路全体としての集水用枝管の本数は異な
るところがないので、集水量については同等である。ま
た、並列排水主管路の相互間を連通し、各主管路の流水
量を等しくしているので、各主管路内の水量に基づく荷
重は均等であり、しかも、主管路を間隔を隔てて分散さ
せてあるから、上記水量は埋設地に対し、均等に分散さ
れた荷重として作用し、その荷重が大となる下流側にお
いても排水管路の沈下をよく防止でき、水漏れ事故を排
除できる。In the present invention, as shown in the above embodiment, the water collecting branch pipe is communicated with only one side surface of each main pipeline, and the water collecting branch pipe is communicated with both side surfaces of one main pipeline. Compared with the above, since the number of water collection branch pipes connected to one main pipeline can be halved, the amount of inflow from the water collection branch pipe to one drainage main pipeline can be halved, and each drainage main pipeline becomes full. Can be reduced. Of course, there is no difference in the number of branch pipes for water collection in the entire drainage channel, so the water collection amount is the same. Moreover, since the parallel drainage main pipelines are connected to each other and the amount of flowing water in each main pipeline is made equal, the load based on the amount of water in each main pipeline is even and the main pipelines are dispersed at intervals. Therefore, the amount of water acts as an evenly distributed load on the burial ground, and even on the downstream side where the load is large, sinking of the drainage pipeline can be prevented well, and water leakage accidents can be eliminated.

第４図は本発明の別実施例を示す説明図であり、三本の
排水用主管路11、12並びに13を並列に敷設し、左側主管
路11の左側面並びに右側主管路12の右側面にそれぞれ所
定の間隔で集水用枝管21,……並びに22,……を連結し、
左側主管路11と中央主管路13とを連通部31において、右
側主管路12と中央主管路13とを連通部32においてそれぞ
れ連通してある。これら、連通部31,32は対向して設け
ても良いが互いにずらせて設けることが好ましい。ま
た、該連通部31,32は、集水用枝管21,22と対向する下流
側の近傍、又は、集水用枝管21,22の中間部等に、複数
の主管路の水位が略同一化できるように、適当数を配設
する。FIG. 4 is an explanatory view showing another embodiment of the present invention, in which three drainage main pipelines 11, 12 and 13 are laid in parallel, and a left side surface of the left main pipeline 11 and a right side surface of the right main pipeline 12 are shown. To the water collecting branch pipes 21, ... and 22, ... at predetermined intervals.
The left main pipeline 11 and the central main pipeline 13 are communicated with each other at a communication section 31, and the right main pipeline 12 and the central main pipeline 13 are communicated with each other at a communication section 32. These communicating portions 31, 32 may be provided so as to face each other, but it is preferable that they are provided so as to be offset from each other. In addition, the communication portions 31, 32 have a plurality of main pipes whose water levels are substantially close to each other in the vicinity of the downstream side facing the water collecting branch pipes 21, 22 or in the middle portion of the water collecting branch pipes 21, 22. Arrange an appropriate number so that they can be made identical.

第５図は本発明に係る排水管路の他の実施例を示す説明
図である。FIG. 5 is an explanatory view showing another embodiment of the drainage pipe according to the present invention.

第５図において、Ａは排水流量の比較的小さい上流側区
域を、Ｂは排水流量の比較的大きい下流側区域をそれぞ
れ示している。Ｐはピットである。In FIG. 5, A indicates an upstream area where the drainage flow is relatively small, and B indicates a downstream area where the drainage flow is relatively large. P is a pit.

上流側区域においては、二本の並列排水主管路11,12の
各主管路にそれぞれ集水用枝管21,……並びに22,……を
連結し、主管路相互間を連通部３で連通してあり、下流
側区域においては、三本の並列排水主管路11,12並びに1
3の左右の各主管路11,12に集水用枝管21,……、22,……
を連結し、右側主管路11と中央主管路13とを連通部31に
より、中央主管路13と左側主管路12とを連通部32により
それぞれ連通してある。In the upstream area, the branch pipes for collecting water 21, ... and 22, ... are connected to the main pipes of the two parallel drainage main pipes 11 and 12, respectively, and the main pipes are connected to each other by the communication portion 3. In the downstream area, there are three parallel drainage main pipelines 11, 12 and 1
Water collecting branch pipes 21, ……, 22, …… on each of the left and right main pipes 11, 12
The right main pipe line 11 and the central main pipe line 13 are connected by a communication part 31, and the central main pipe line 13 and the left main pipe line 12 are connected by a communication part 32.

〈発明の効果〉 本発明に係る排水管路には上述した通りの構成であり、
排水主管路を複数本の並列主管路で構成し、左側並びに
右側の主管路の片側面にのみ集水用枝管を連結したか
ら、一本の主管路に接続する集水用枝管の本数を、単一
排水主管路の両側面に集水用枝管を連結している従来例
に較べて半減でき、集水用枝管を通じての一本の主管路
に侵入する流入水量を半減でき、排水主管路が満水状態
になるのを軽減できる。また、同一サイズの管を使用
し、横方向に複数配列して排水主管路を構成する為、管
路設計が容易であり、又、連結部のパッキングを用いる
接続方法と相まって、施工が簡単で工事費が安価とな
る。更に、並列主管路を流下する排水量を均等化し、水
量荷重を分散させているから、排水管路の沈下を防止で
き、漏水事故を軽減できる。<Effects of the Invention> The drainage pipe according to the present invention has the configuration as described above,
The drainage main pipeline is composed of multiple parallel main pipelines, and the water collecting branch pipelines are connected to only one side of the left and right main pipelines. Therefore, the number of water collecting branch pipelines connected to one main pipeline Can be halved compared to the conventional example in which the branch pipes for collecting water are connected to both side surfaces of the single drainage main pipe, and the amount of inflow water that invades one main pipe through the branch pipe for collecting water can be halved. It is possible to prevent the main drainage line from being filled with water. In addition, since pipes of the same size are used and multiple drains are arranged in the horizontal direction to form the main drainage pipe, the pipe line design is easy, and the construction is easy in combination with the connection method that uses packing at the connection part. Construction costs are low. Furthermore, since the amount of drainage flowing down the parallel main pipelines is equalized and the water volume load is dispersed, it is possible to prevent the drainage pipelines from sinking and reduce water leakage accidents.

【図面の簡単な説明】[Brief description of drawings]

第１図は本発明の一実施例を示す説明図、第２図Ａ、並
びに第２図Ｂはそれぞれ本発明において使用する短管の
取付構造を示す説明図、第３図Ａ、第３図Ｂ、第３図Ｃ
並びに第３図Ｄはそれぞれ本発明における主管路相互管
の連通構造を示す説明図、第４図は本発明の別実施例を
示す説明図、第５図は本発明の他の実施例を示す説明
図、第６図は従来例を示す説明図である。 11,12,13……主管路、21,22……集水用枝管、3,31,32…
…連通部。FIG. 1 is an explanatory view showing an embodiment of the present invention, FIG. 2A, and FIG. 2B are explanatory views showing a mounting structure of a short pipe used in the present invention, FIG. 3A, and FIG. B, FIG. 3C
In addition, FIG. 3D is an explanatory view showing the communication structure of the main pipe mutual pipes in the present invention, FIG. 4 is an explanatory view showing another embodiment of the present invention, and FIG. 5 shows another embodiment of the present invention. FIG. 6 and FIG. 6 are explanatory views showing a conventional example. 11,12,13 …… Main pipeline, 21,22 …… Sampling branch pipe, 3,31,32…
… Communication section.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】並列敷設せる複数本の排水主管路におい
て、主管路の隣接主管路との対向側面に連通部を設け、
非対向側面に集水用枝管を連結したことを特徴とする排
水管路。1. A plurality of drain main pipelines laid in parallel, wherein a communicating portion is provided on a side surface of the main pipeline facing the adjacent main pipeline.
A drainage pipe characterized in that a branch pipe for collecting water is connected to non-opposing sides.