JPS644908Y2 - - Google Patents
Info
- Publication number
- JPS644908Y2 JPS644908Y2 JP3764784U JP3764784U JPS644908Y2 JP S644908 Y2 JPS644908 Y2 JP S644908Y2 JP 3764784 U JP3764784 U JP 3764784U JP 3764784 U JP3764784 U JP 3764784U JP S644908 Y2 JPS644908 Y2 JP S644908Y2
- Authority
- JP
- Japan
- Prior art keywords
- narrow
- underdrain
- underdrain drainage
- drainage
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 43
- 239000006260 foam Substances 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000010276 construction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【考案の詳細な説明】
この考案は暗渠排水用材に関し、良好な排水性
能を備えていると同時に製造容易で安価なものを
提供しようとしている。[Detailed description of the invention] This invention relates to an underdrain drainage material, and attempts to provide a material that has good drainage performance, is easy to manufacture, and is inexpensive.
従来、暗渠排水としては、通水路を有する有孔
パイプや発泡樹脂製のドレンブロツクなどを土中
に埋設し、その周囲には、そだ、麦わら、籾穀あ
るいは砂利等の充填疎水材を充填して、集水性能
を良好にすると同時に通水路への土砂の流入や目
詰りを防いでいた。 Conventionally, underdrain drainage involves burying a perforated pipe with a water passage or a drain block made of foamed resin in the soil, and filling the surrounding area with a hydrophobic material such as straw, wheat straw, rice grain, or gravel. This not only improves water collection performance but also prevents sediment from entering the waterways and clogging them.
しかし、上記暗渠排水構造の場合、ドレンブロ
ツク等の製造コストが高くつくと共に、充填疎水
材の充填の手間がかかり、施工時間が長くなつた
り、技術的にも面倒なものであり、施工コストが
高くなる欠点があつた。 However, in the case of the above-mentioned underdrain drainage structure, the manufacturing cost of drain blocks etc. is high, the filling of hydrophobic material takes time, the construction time becomes long, and it is technically troublesome, and the construction cost is high. It had the disadvantage of being expensive.
そこで、この考案においては、上記従来の暗渠
排水構造の欠点を解消し、コスト安価で排水性能
にも優れた暗渠排水施工が行える暗渠排水用材を
提供するものであり、その構成としては熱可塑性
樹脂の硬質発泡シートからなる細幅シートを多数
まとめて結束してなることを特徴としている。 Therefore, in this invention, we provide an underdrain drainage material that eliminates the drawbacks of the conventional underdrain drainage structure and can perform underdrain drainage construction at low cost and with excellent drainage performance.The material is made of thermoplastic resin. It is characterized by being made by bundling together a large number of narrow sheets made of rigid foam sheets.
次いで、この考案の実施態様について、図を参
照しながら以下に例示する。 Next, embodiments of this invention will be illustrated below with reference to the drawings.
第１図および第２図に示す暗渠排水用材１は、
発泡ポリスチレン等からなる比較的硬質の発泡シ
ートを、幅５〜100mm程度の細幅に裁断した長尺
の細幅シート１０を、多数まとめて略円柱状にな
し、外周を適宜結束材１１で結束一体化させたも
のである。 The underdrain drainage material 1 shown in FIGS. 1 and 2 is
A large number of long narrow sheets 10 made by cutting a relatively hard foamed sheet made of expanded polystyrene or the like into narrow widths of about 5 to 100 mm are made into a substantially cylindrical shape, and the outer periphery is bound with a binding material 11 as appropriate. It is integrated.
そして、細幅シート１０の素材としては、ポリ
スチレンのほかポリエチレン、ポリプロピレンそ
の他の各種熱可塑性樹脂からなる発泡シートのう
ち、比較的硬質で剛性の大きなものが使用され
る。そして、発泡シートの発泡倍率は比較的低発
泡のものが、硬質で剛性が大きく好適である。ま
た発泡シートの厚みは２〜５mm程度のものが使用
上好ましいものである。なお、発泡シートは連続
的に押出成形された長尺シートをそのまま適宜裁
断して細幅シートに形成してもよいが、真空成形
等により成形品を製造した後の余剰シートなどの
スクラツプ材を利用することも可能である。 As the material for the narrow sheet 10, a relatively hard and rigid foamed sheet made of polystyrene, polyethylene, polypropylene, and other various thermoplastic resins is used. It is preferable that the foam sheet has a relatively low expansion ratio because it is hard and has high rigidity. Further, the thickness of the foamed sheet is preferably about 2 to 5 mm. Note that the foamed sheet may be formed into narrow sheets by cutting a long sheet that is continuously extruded as is, but it is also possible to use scrap material such as a surplus sheet after producing a molded product by vacuum forming etc. It is also possible to use
そして、細幅シート１０としては、１本の暗渠
排水用材１で、全て同一寸法または同一材質の細
幅シート１０を使用する必要はなく、前記幅およ
び厚み範囲内で不規則な種々の寸法の細幅シート
１０を一諸にまとめて使用したほうが、後述する
通水空間を充分に確保する上でも好都合になる。
また、細幅シート１０の長さも、製造する暗渠排
水用材１の全長と全く同じものを揃えて用いる必
要はなく、長短に差のある不規則な種々の細幅シ
ート１０を同時にまとめて結束することによつ
て、全体を一定長さの柱状をなす暗渠排水用材１
に形成すればよい。上記細幅シート１０の長さの
バラツキも通水空間の確保の為に有効となる。 As the narrow sheet 10, it is not necessary to use all the narrow sheets 10 of the same size or the same material in one underdrain drainage material 1, but it is necessary to use narrow sheets 10 of various irregular dimensions within the above width and thickness range. It is more convenient to use the narrow sheets 10 all at once in order to secure a sufficient water passage space, which will be described later.
Furthermore, the length of the narrow sheets 10 does not need to be exactly the same as the total length of the underdrain drainage material 1 to be manufactured, and various narrow sheets 10 of irregular width with different lengths may be bundled together at the same time. In some cases, underdrain drainage material 1 having a columnar shape with a certain length as a whole
It should be formed as follows. Variation in the length of the narrow sheet 10 is also effective for securing water passage space.
次に結束材１１としては、針金等の金属線ある
いは合成樹脂製線材等が好適に使用でき、また線
状のもののほか、幅のあるテープあるいはバンド
状の結束材１１も使用でき、その他細幅シート１
０をまとめて一体化できるものであれば、既知の
各種結束材料が自由に使用できる。 Next, as the binding material 11, a metal wire such as wire or a synthetic resin wire material can be suitably used.In addition to the linear material, wide tape or band-like binding material 11 can also be used, and other narrow width materials can also be used. sheet 1
Various known binding materials can be freely used as long as they can integrate the 0s together.
製造される暗渠排水用材１の形状としては、略
円柱状をなすものが製造し易く取扱い上も便利で
あるが、角柱状あるいは扁平な矩形状等に形成す
ることもできる。また、暗渠排水用材１の寸法
は、施工する暗渠の排水条件や輸送保管時の取扱
い易さ等を考慮して、自由に設定することが可能
である。 Regarding the shape of the underdrain drainage material 1 to be manufactured, a substantially cylindrical shape is easy to manufacture and convenient for handling, but it can also be formed into a prismatic shape or a flat rectangular shape. Further, the dimensions of the underdrain drainage material 1 can be freely set in consideration of drainage conditions of the underdrain to be constructed, ease of handling during transportation and storage, and the like.
そして、製造された暗渠排水用材１には、多数
の細幅シート１０が雑然とまとめられて結束され
ているので、各細幅シート１０，１０同士の間に
は空間１２が大きく生じ、また暗渠排水用材１の
側面にも細幅シート１０，１０同士の間に隙間が
あり、この隙間は内部の空間１２に連通してお
り、この空間１２を通水路となすものである。 In the produced underdrain drainage material 1, a large number of narrow sheets 10 are roughly bundled together, so a large space 12 is created between each of the narrow sheets 10, 10, and the underdrain is There is also a gap between the narrow sheets 10, 10 on the side surface of the drainage material 1, and this gap communicates with an internal space 12, and this space 12 serves as a passageway.
以上に述べた暗渠排水用材１の施工方法を第３
図に示しており、まず農地等の地盤に溝２を掘削
し、その底部に暗渠排水用材１を順次長手方向に
沿つて連結して敷設し、上部に土３を埋め戻せば
暗渠排水施工が完了する。 The construction method of culvert drainage material 1 described above is explained in the third method.
As shown in the figure, first, a trench 2 is excavated in the ground of a farmland, etc., and the underdrain drainage material 1 is successively connected and laid along the longitudinal direction at the bottom of the trench, and the top is backfilled with soil 3 to complete the underdrain drainage construction. Complete.
なお、排水量の調整は、暗渠排水用材１の径ま
たは断面積を増減すればよいが、第４図に示すよ
うに、一定断面積の暗渠排水用材１を複数本並べ
て埋設することによつて、排水量の増加を図るこ
ともできる。 Note that the amount of drainage can be adjusted by increasing or decreasing the diameter or cross-sectional area of the underdrain drainage material 1, but as shown in Fig. 4, by burying a plurality of underdrain drainage materials 1 of a constant cross-sectional area side by side, It is also possible to increase the amount of drainage.
以上のごとく構成された、この考案の暗渠排水
用材１によれば、細幅シート１０をまとめて結束
したものであり、多数の細幅シート１０，１０同
士の間に生じる空間１２が通水路となつて、良好
な排水性能を発揮するものである。また、暗渠排
水用材１の側面においても、細幅シート１０，１
０同士の隙間から内部空間へ連通しているので、
使用時における周囲の地盤からの集水性能も良好
である。 According to the underdrain drainage material 1 of this invention configured as described above, the narrow sheets 10 are bundled together, and the space 12 created between a large number of narrow sheets 10, 10 is used as a water passageway. As a result, it exhibits good drainage performance. Also, on the side of the underdrain drainage material 1, the narrow sheets 10, 1
Since the gap between the zeros communicates with the internal space,
The water collection performance from the surrounding ground during use is also good.
しかも、上記通水空間または集水用の隙間は、
暗渠排水用材１の全体に多数存在するので、土砂
による目詰りや通水阻害は起り難く、従来のドレ
ンブロツクのように、周囲に充填疎水材を充填す
る必要は無くなり、施工工程の簡略化および充填
疎水材のコスト削減を図ることができる。 Moreover, the above-mentioned water passage space or water collection gap is
Since there are a large number of them throughout the underdrain drainage material 1, clogging and water flow obstruction due to earth and sand are unlikely to occur, and unlike conventional drain blocks, there is no need to fill the surrounding area with hydrophobic material, simplifying the construction process and The cost of filling hydrophobic material can be reduced.
さらに、暗渠排水がＹ字状あるいはＴ字状等に
合流する合流点においては、従来のドレンブロツ
クの場合には、予めＹ字またはＴ字形の合流点用
ドレンブロツクを製造しておかなければ通水がス
ムーズに行かないが、本願考案の暗渠排水用材１
であれば、合流点で単に突き合せておくだけで
も、通水空間が充分に確下でき、スムーズな排水
合流を果すことができる。 Furthermore, at confluence points where underdrain drainage flows in a Y-shape or T-shape, if a conventional drain block is used, a drain block for the Y-shape or T-shape confluence must be manufactured in advance. Water does not flow smoothly, but underdrain drainage material 1 of the present invention
If so, simply butting them together at the merging point can ensure sufficient water flow space and achieve smooth drainage merging.
次に細幅シート１０は熱可塑性樹脂の硬質発泡
シートからなり、この細幅シート１０をまとめて
結束しているので、全体の剛性が大きく、適度の
緩衝性もあるので埋設施工後に踏圧が加わつても
暗渠排水用材１が変形したり、折損するおそれは
無く、また内部の通水空間や隙間が消滅したり減
少することも無い。 Next, the narrow sheet 10 is made of a hard foamed sheet of thermoplastic resin, and since the narrow sheets 10 are tied together, the overall rigidity is large and it has appropriate cushioning properties, so it will not be affected by treading pressure after burying. There is no risk that the underdrain drainage material 1 will be deformed or broken, and the internal water passage spaces and gaps will not disappear or decrease.
しかも、暗渠排水用材１自体の取扱いは、発泡
シートからなるゆえ、非常に軽量で運搬や埋設作
業も容易である。 Moreover, since the underdrain drainage material 1 itself is made of a foamed sheet, it is extremely lightweight and easy to transport and bury.
次に、暗渠排水用材１の製造は、適宜発泡シー
トを細幅に裁断して細幅シート１０を形成し、こ
の細幅シート１０を多数まとめて結束するだけで
あるから、ドレンブロツクや有孔パイプのような
成形加工は全く不要であり、製造コストは非常に
安価である。特に、発泡シートとしてスクラツプ
材を使用すれば、材料費はほとんどかからず、全
体の施工コストを大幅に低減することが可能にな
る。 Next, to manufacture the underdrain drainage material 1, the foam sheet is appropriately cut into narrow widths to form narrow sheets 10, and a large number of these narrow sheets 10 are bundled together. There is no need for forming processes such as pipes, and the manufacturing cost is very low. In particular, if scrap material is used as the foam sheet, the material costs are almost negligible, making it possible to significantly reduce the overall construction cost.
以上のように、排水性能が良好でコスト安価な
暗渠排水を施工できる、優れた実用的効果を有す
るものである。 As described above, the present invention has excellent practical effects, allowing construction of underdrain drainage with good drainage performance and low cost.
図はこの考案の実施態様を例示するものであ
り、第１図は正面図、第２図は側面図、第３図は
使用状態の断面図、第４図は使用変更例の断面図
である。
１……暗渠排水用材、１０……細幅シート、１
１……結束材、１２……空間。
The figures illustrate the embodiment of this invention, and Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a sectional view of the state of use, and Fig. 4 is a sectional view of a modified example of use. . 1... Underdrain drainage material, 10... Narrow sheet, 1
1... Binding material, 12... Space.
Claims (1)
シートを多数まとめて結束してなることを特徴
とする暗渠排水用材。 ２ 細幅シートとして幅、厚さおよび長さが不規
則なものを同時に用いる上記実用新案登録請求
の範囲第１項記載の暗渠排水用材。[Claims for Utility Model Registration] 1. An underdrain drainage material characterized by being made by bundling together a large number of narrow sheets made of rigid foam sheets of thermoplastic resin. 2. The underdrain drainage material according to claim 1, which uses a narrow sheet having irregular width, thickness, and length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3764784U JPS60151929U (en) | 1984-03-15 | 1984-03-15 | Underdrain drainage material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3764784U JPS60151929U (en) | 1984-03-15 | 1984-03-15 | Underdrain drainage material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60151929U JPS60151929U (en) | 1985-10-09 |
| JPS644908Y2 true JPS644908Y2 (en) | 1989-02-08 |
Family
ID=30543922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3764784U Granted JPS60151929U (en) | 1984-03-15 | 1984-03-15 | Underdrain drainage material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60151929U (en) |
-
1984
- 1984-03-15 JP JP3764784U patent/JPS60151929U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60151929U (en) | 1985-10-09 |
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