JP3708220B2 - Slope drainage device - Google Patents

Slope drainage device Download PDF

Info

Publication number
JP3708220B2
JP3708220B2 JP12887496A JP12887496A JP3708220B2 JP 3708220 B2 JP3708220 B2 JP 3708220B2 JP 12887496 A JP12887496 A JP 12887496A JP 12887496 A JP12887496 A JP 12887496A JP 3708220 B2 JP3708220 B2 JP 3708220B2
Authority
JP
Japan
Prior art keywords
slope
water
shore block
leg
drainage
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 - Fee Related
Application number
JP12887496A
Other languages
Japanese (ja)
Other versions
JPH09310330A (en
Inventor
恒雄 小野寺
修 大橋
良樹 西川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP12887496A priority Critical patent/JP3708220B2/en
Publication of JPH09310330A publication Critical patent/JPH09310330A/en
Application granted granted Critical
Publication of JP3708220B2 publication Critical patent/JP3708220B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Cultivation Of Plants (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、法面の地表層を流下した排水を畦畔ブロックで塞き止めて排出する法面の排水装置に関する。
【0002】
【従来の技術】
棚田等では、上段の水田の用水が法面の地表層を流下して下段の水田に湧出するため、図6に示した法面の下部に隣接した平地のゾーンSの付近には常に水が溜まり、ぬかるんだ状態となっている。このため、法面の付近では稲の成育も悪くなり、所期の収穫量が得られないということがあった。また、法面には雑草が生い繁るため、農作業者が年に数回程度の割合で除草作業を行っているが、法面の下部がぬかるんでいると滑りやすく、除草作業の障害となっていた。
【0003】
そこで、この様な場合には従来から図7に示した如く、法面の下部に隣接した平地に法面と平行に排水溝を構築し、法面の地表層を流下して湧出した排水を排水溝に集めて排出することが行なわれている。
【0004】
【発明が解決しようとする課題】
ところが、地面の掘削と土盛りによって構築した排水溝は崩れ易いため、崩壊した排水溝を造り直したり、補修をしなければならないという煩わしさがあった。特に、土盛りした土手に農作業者が乗って法面に生えた雑草を取り除く際には、土手が崩れて排水溝が埋め戻されるため、排水溝の修復作業を余儀なくされていた。更には、排水溝と土盛りした土手が広幅となると、下段の水田の作付面積が狭くなるため、稲の収穫量が低下するということがあった。
【0005】
本発明は、かかる課題を解決したものであって、法面の地表層を流下する排水を畦畔ブロックで堰止めて簡単に排出できる法面の排水装置を提供するものである。
【0006】
【課題を解決するための手段】
本発明は、法面の下部と隣接した平地に畦畔ブロックを敷き並べて接続し、該畦畔ブロックの下部を地中に埋設すると共に、該畦畔ブロックの法面側に通水層を形成し、また通水層の下方に有孔管を埋設して法面の地表層を流下した排水を通水層に導いてから有孔管で排出することを特徴とする。前記畦畔ブロックとしては、廃棄プラスチックの射出成形による脚体と踏板とで構成したものが好適に使用できる。また、この畦畔ブロックの法面側に不織布、グラスウール等の通水性シートを張着しておくと、畦畔ブロックで塞き止められた排水を通水性シートを介して有孔管までスムースに導くことができる。
【0007】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて詳細に説明する。図1は本発明の一実施例を示す畦畔ブロックを法面と隣接した平地に設置した状態の断面斜視図、図2は本発明の他の実施例を示す脚体の斜視図、図3は更に他の実施例を示す脚体の斜視図、図4は脚体の水平板上に有孔管を敷設した状態を示す斜視図、図5は通水性シートを脚体に取り付ける手段の他の実施例を示す断面図である。図中の符号1は脚体、2は踏板、3は通水層を構成する通水性シート、4はプラスチック管の管壁に多数の貫通孔を穿設した有孔管である。
【0008】
本発明で使用する畦畔ブロックAは長手方向に所定の長さを有する脚体1と踏板2とで構成され、これらのブロックは塩ビ樹脂、ポリエチレンなどのプラスチック、あるいはこれらの廃棄プラスチックを射出成形して製造される。脚体1は水平板11と垂直板12によって断面L字状に形成されており、垂直板11の上部には踏板2が装着されるようになっている。
【0009】
一方、踏板2は平板21の両側に下方に垂下する側板22,22を設けると共に、平板21の下面中央に側板22と平行に垂下片23を設けた構成からなっており、該踏板2は側板22と垂下片23との間に脚体1の垂直板12が嵌り込むことによって支持される。
【0010】
次に、この畦畔ブロックAを法面の下部と隣接した平地に設置する施工手順を説明する。まず、法面の下部と隣接した平地に法面と平行に溝Gを掘削し、該溝Gの底面を平坦に地ならしする。そこで、溝Gに沿って脚体1を敷き並べつつ順次接続し、この接続した脚体1、1…のライン上に踏板2を順次載置して接続する。
【0011】
また、脚体1の法面側に不織布、グラスウール等の通水性に優れたシート3を張着し、水平板12に添わせた通水性シート3の端部付近に有孔管4を敷設してから土砂等の埋め戻しを行う。このとき、地面GLから脚体1の水平板11までの埋め戻し深さL1 は地盤が粘土質であるか、岩盤であるかによって異なるものの、一般にはこの深さL1 を50〜100cmの範囲で適宜設定することができ、水平板12の幅L2 を40〜60cmに設定するとよい。この様にすると、畦畔ブロッAで堰止められた排水は通水性シート3を伝って有孔管4までスムースに導かれて排出される。
【0012】
また、地面GLから踏板2の上面までの高さL3 は30cm程度に設定しておけばよく、この程度の高さがあれば水田の水嵩さが増したときでも畦畔ブロックAを乗り越えて法面側に用水が流れ込むことはない。また、この畦畔ブロックAは農作業者の歩道となるだけでなく、法面に生えた雑草の除草作業を行う際に踏台ともなるので、農作業者が畦畔ブロックAの上の乗って安定した状態で除草作業が行なえる。
【0013】
尚、前述した実施例では、脚体1の法面側に通水性シート3を張設したものを例示したが、図2及び図3に示した如く、水平板11や垂直板12に複数本の縦溝aや、多数の突起bを設けた脚体1を併用すると、水平板11及び垂直板12と通水性シート3との間に水の通路が確保されるため、排水を有孔管4までより一層スムースに導くことができる。このとき、図4に示した如く、水平板11の末端上部に有孔管4を敷設しておけば、水平板11の上面を流れる排水が効率よく有孔管4で捕捉されるため、排水効率が更に向上する。
【0014】
また、図1には脚体1と踏板2との間に通水性シート3を挟持したものを例示したが、通水性シート3は如何なる手段を用いて脚体1や踏板2に固定してもよい。この一例として、例えば図5に示した如く、脚体1の垂直板12に長手方向の溝120を設け、該溝120に支持ピン13等を嵌め込んで通水性シート3を固定することも可能である。
【0015】
更には、本発明はこの通水性シート3の使用に限定されるものではなく、通水性シート3に代えて脚体1の法面側に、通水性に優れたスポンジ材や、プラスチックシートに多数の凹凸や波型凸条を設けて積層したパネルを埋設して通水層を形成してもよい。
【0016】
【発明の効果】
以上詳述した如く、本発明は法面の下部と隣接した平地に畦畔ブロックを敷き並べて接続し、該畦畔ブロックの下部を地中に埋設すると共に、該畦畔ブロックの法面側に通水層を形成し、また通水層の下方に有孔管を埋設したので、法面の地表層を流下した排水を通水層を介して有孔管までスムースに導いて排出することができる。従って、本発明によれば、法面の下部に隣接した平地がぬかるむのを未然に防止することができる。
【0017】
また、設置した畦畔ブロックが農作業者の歩道となるだけでなく、法面に生えた雑草の除草作業を行う際の踏台ともなるので、農作業者がこの畦畔ブロックの上に乗って安定した状態で除草作業が行なえるという利点がある。
【0018】
更には、畦畔ブロックを脚体と踏板とで構成して廃棄プラスチックで成形すれば、軽量となるため、現場での運搬・施工作業が円滑かつ容易に行なえる。
【図面の簡単な説明】
【図1】図1は本発明の一実施例を示す畦畔ブロックを法面と隣接した平地に設置した状態の断面斜視図である。
【図2】図2は本発明で使用する脚体の他の実施例を示す斜視図である。
【図3】図3は更に本発明で使用する脚体の他の実施例を示す斜視図である。
【図4】図4は脚体の水平板上に有孔管を敷設した状態の斜視図である。
【図5】図5は通水性シートを脚体に取り付ける手段の他の実施例を示す断面図である。
【図6】図6は法面の状態を示す断面図である。
【図7】図7は従来の法面の排水構造を示す断面図である。
【符号の説明】
A 畦畔ブロック
1 脚体
2 踏板
3 通水層(通水性シート)
4 有孔管
[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a slope drainage device for blocking and discharging drainage water flowing down a sloped surface layer with a shore block.
[0002]
[Prior art]
In terraced rice fields, the water from the upper paddy field flows down the surface layer of the slope and springs up to the lower paddy field. Therefore, water always remains in the vicinity of the zone S on the flat land adjacent to the lower part of the slope shown in FIG. Accumulated and muddy. For this reason, the growth of rice also deteriorated near the slope, and the desired yield could not be obtained. In addition, weeds grow and grow on the slopes, so farmers are weeding at a rate of several times a year, but if the lower part of the slope is muddy, it becomes slippery and hinders weeding work. It was.
[0003]
Therefore, in such a case, as shown in FIG. 7, conventionally, a drainage groove is constructed in parallel to the slope on the flat ground adjacent to the lower part of the slope, and the drainage discharged from the slope surface layer is discharged. They are collected in the drains and discharged.
[0004]
[Problems to be solved by the invention]
However, since the drainage channel constructed by excavating the ground and embankment is easy to collapse, there is an annoyance that the collapsed drainage channel must be rebuilt or repaired. In particular, when a farmer rides on a bank that is embanked and removes the weeds on the slope, the bank collapses and the drainage ditch is backfilled, so the drainage ditch must be repaired. Furthermore, when the drainage ditch and the embanked bank are wide, the acreage of the lower paddy field is reduced, resulting in a decrease in rice yield.
[0005]
The present invention solves such a problem, and provides a slope drainage device that can easily discharge drainage flowing down a sloped surface layer by damming a shore block.
[0006]
[Means for Solving the Problems]
The present invention lays and connects the shore block on a flat ground adjacent to the lower part of the slope, embeds the lower part of the shore block in the ground, and forms a water-permeable layer on the slope side of the shore block In addition, it is characterized in that a perforated pipe is buried below the water-permeable layer and the drainage flowing down the surface layer of the slope is guided to the water-layer and then discharged through the perforated pipe. As the shore block, a block composed of a waste plastic injection molding leg and a tread board can be suitably used. In addition, if a water-permeable sheet such as non-woven fabric or glass wool is stretched on the slope side of this shore block, the drainage blocked by the shore block can be smoothly passed to the perforated pipe through the water permeable sheet. Can lead.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional perspective view of a state in which a shore block showing an embodiment of the present invention is installed on a flat ground adjacent to a slope, and FIG. 2 is a perspective view of a leg body showing another embodiment of the present invention. Fig. 4 is a perspective view of a leg showing still another embodiment, Fig. 4 is a perspective view showing a state in which a perforated tube is laid on the horizontal plate of the leg, and Fig. 5 is another means for attaching a water-permeable sheet to the leg. It is sectional drawing which shows the Example. In the figure, reference numeral 1 denotes a leg, 2 denotes a tread, 3 denotes a water-permeable sheet constituting a water-permeable layer, and 4 denotes a perforated pipe having a large number of through-holes formed in the pipe wall of the plastic pipe.
[0008]
The shore block A used in the present invention is composed of a leg 1 having a predetermined length in the longitudinal direction and a tread 2, and these blocks are injection-molded with a plastic such as a vinyl chloride resin or polyethylene, or these waste plastics. Manufactured. The leg 1 is formed by a horizontal plate 11 and a vertical plate 12 to have an L-shaped cross section, and a tread plate 2 is mounted on the upper portion of the vertical plate 11.
[0009]
On the other hand, the tread plate 2 has a configuration in which side plates 22 and 22 hanging downward are provided on both sides of the flat plate 21 and a hanging piece 23 is provided in the center of the lower surface of the flat plate 21 in parallel with the side plate 22. The vertical plate 12 of the leg 1 is supported by being fitted between 22 and the hanging piece 23.
[0010]
Next, a construction procedure for installing the shore block A on a flat ground adjacent to the lower part of the slope will be described. First, a groove G is excavated in parallel to the slope on a flat ground adjacent to the lower part of the slope, and the bottom of the groove G is leveled flat. Therefore, the legs 1 are sequentially connected along the groove G, and the treads 2 are sequentially placed and connected on the lines of the connected legs 1, 1,.
[0011]
Further, a sheet 3 having excellent water permeability, such as a nonwoven fabric or glass wool, is stretched on the slope side of the leg 1, and a perforated tube 4 is laid near the end of the water-permeable sheet 3 attached to the horizontal plate 12. Then, backfill the earth and sand. At this time, the backfill depth L1 from the ground GL to the horizontal plate 11 of the leg 1 differs depending on whether the ground is clayey or rock, but generally this depth L1 is in the range of 50 to 100 cm. The width L2 of the horizontal plate 12 may be set to 40 to 60 cm. If it does in this way, the waste_water | drain blocked by the bank block B will be smoothly guide | induced to the perforated pipe | tube 4 through the water-permeable sheet 3, and will be discharged | emitted.
[0012]
Further, the height L3 from the ground GL to the upper surface of the tread board 2 may be set to about 30 cm, and if this height is reached, even if the paddy field increases in volume, the shore block A will be overcome. Water will not flow into the surface. In addition, this shore block A not only serves as a sidewalk for farm workers, but also serves as a platform when weeding the weeds growing on the slope, so that the farm workers can ride on the shore block A and stabilize. Weeding work can be performed in the state.
[0013]
In the above-described embodiment, the water-permeable sheet 3 is stretched on the slope side of the leg 1. However, as shown in FIGS. 2 and 3, a plurality of horizontal plates 11 and vertical plates 12 are provided. If the legs 1 provided with the vertical grooves a and the protrusions b are used together, a water passage is secured between the horizontal plate 11 and the vertical plate 12 and the water-permeable sheet 3, so that the drainage can be perforated. It can lead to even smoother up to 4. At this time, as shown in FIG. 4, if the perforated pipe 4 is laid on the upper end of the horizontal plate 11, drainage flowing on the upper surface of the horizontal plate 11 is efficiently captured by the perforated pipe 4. Efficiency is further improved.
[0014]
FIG. 1 shows an example in which the water-permeable sheet 3 is sandwiched between the leg body 1 and the tread board 2, but the water-permeable sheet 3 can be fixed to the leg body 1 or the tread board 2 by any means. Good. As an example of this, as shown in FIG. 5, for example, a longitudinal groove 120 is provided in the vertical plate 12 of the leg 1, and the water-permeable sheet 3 can be fixed by fitting a support pin 13 or the like into the groove 120. It is.
[0015]
Furthermore, the present invention is not limited to the use of the water-permeable sheet 3, and a large number of sponge materials and plastic sheets having excellent water permeability are provided on the slope side of the leg 1 instead of the water-permeable sheet 3. A water-permeable layer may be formed by embedding a laminated panel provided with irregularities and corrugated ridges.
[0016]
【The invention's effect】
As described in detail above, the present invention connects and connects a shore block on a flat ground adjacent to the lower part of the slope, embeds the lower part of the shore block in the ground, and on the slope side of the shore block. Since the water-permeable layer was formed and the perforated pipe was buried under the water-permeable layer, the drainage that flowed down the surface layer of the slope could be smoothly guided to the perforated pipe through the water layer and discharged. it can. Therefore, according to the present invention, it is possible to prevent the flat ground adjacent to the lower part of the slope from becoming muddy.
[0017]
In addition, the installed shore block not only serves as a sidewalk for farm workers, but also serves as a platform for weeding the weeds that grow on the slope, so that the farmer can ride on the shore block and stabilize There is an advantage that weeding work can be performed in the state.
[0018]
Furthermore, if the shore block is composed of legs and treads and molded from waste plastic, the weight is reduced, so that transportation and construction work on site can be performed smoothly and easily.
[Brief description of the drawings]
FIG. 1 is a cross-sectional perspective view of a shore block according to an embodiment of the present invention installed on a flat ground adjacent to a slope.
FIG. 2 is a perspective view showing another embodiment of a leg used in the present invention.
FIG. 3 is a perspective view showing another embodiment of the leg used in the present invention.
FIG. 4 is a perspective view of a state in which a perforated tube is laid on the horizontal plate of the leg.
FIG. 5 is a cross-sectional view showing another embodiment of means for attaching a water-permeable sheet to a leg.
FIG. 6 is a cross-sectional view showing a state of a slope.
FIG. 7 is a sectional view showing a conventional slope drainage structure.
[Explanation of symbols]
A shore block 1 leg 2 footboard 3 water-permeable layer (water-permeable sheet)
4 Perforated pipe

Claims (3)

法面の下部と隣接した平地に畦畔ブロック(A)を敷き並べて接続し、該畦畔ブロック(A)の下部を地中に埋設すると共に、該畦畔ブロック(A)の法面側に通水層(3)を形成し、また通水層(3)の下方に有孔管(4)を埋設して法面の地表層を流下した排水を通水層(3)に導いてから有孔管(4)で排出することを特徴とする法面の排水装置。The shore block (A) is laid and connected to the flat ground adjacent to the lower part of the slope, and the lower part of the shore block (A) is buried in the ground, and on the slope side of the shore block (A). After the formation of the water flow layer (3), the perforated pipe (4) is buried under the water flow layer (3), and the drainage that has flowed down the surface layer of the slope is led to the water flow layer (3). Slope drainage device, characterized by being discharged through a perforated pipe (4). 畦畔ブロック(A)は廃棄プラスチックの射出成形による脚体(1)と踏板(2)とで構成されていることを特徴とする請求項1記載の法面の排水装置。The slope drainage device according to claim 1, characterized in that the shore block (A) is composed of a leg (1) and a tread (2) by injection molding of waste plastic. 通水層(3)は不織布、グラスウール等の通水性シートからなることを特徴とする請求項1又は2記載の法面の排水装置。The slope drainage device according to claim 1 or 2, wherein the water-permeable layer (3) is made of a water-permeable sheet such as nonwoven fabric or glass wool.
JP12887496A 1996-05-24 1996-05-24 Slope drainage device Expired - Fee Related JP3708220B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12887496A JP3708220B2 (en) 1996-05-24 1996-05-24 Slope drainage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12887496A JP3708220B2 (en) 1996-05-24 1996-05-24 Slope drainage device

Publications (2)

Publication Number Publication Date
JPH09310330A JPH09310330A (en) 1997-12-02
JP3708220B2 true JP3708220B2 (en) 2005-10-19

Family

ID=14995504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12887496A Expired - Fee Related JP3708220B2 (en) 1996-05-24 1996-05-24 Slope drainage device

Country Status (1)

Country Link
JP (1) JP3708220B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104186054A (en) * 2014-09-22 2014-12-10 江苏丘陵地区镇江农业科学研究所 Furrowing method for wheat test field

Also Published As

Publication number Publication date
JPH09310330A (en) 1997-12-02

Similar Documents

Publication Publication Date Title
EP0966571B1 (en) System for collecting fluids
US7686540B2 (en) Transport corridor infiltration system
US7938597B2 (en) Subsurface drainage system and drain structure therefor
US7201538B2 (en) Subsurface drainage system and drain structure therefor
JP5437795B2 (en) Bunker lining assembly
US7578635B2 (en) Subsurface drainage system and method of installing the same
US20060051161A1 (en) Methods and apparatus for reducing sand erosion in golf course bunkers
US20100189506A1 (en) Methods for installing and using paper-enclosed filter media units in an effluent treatment system
JP3708220B2 (en) Slope drainage device
JP2007211546A (en) Bed soil draining improving structure for lawn grass ground surface
KR100641069B1 (en) Apparatus for Channelling Groundwater and The Method Therefor
JP2005023589A (en) Rainwater storing and/or permeating facility
CN211523439U (en) Drainage device suitable for fill road bed
US20090014380A1 (en) Apparatus, systems, and methods for distributing effluent in mound elimination units and other drainfield installations
CN114635434A (en) Greening protection method for roadbed high slope of earthquake fault zone
JP2662823B2 (en) Rainwater penetration structure
CA2531826C (en) Subsurface fluid drainage and storage systems
JPS5810758Y2 (en) Drainage devices such as embankments
JPH1018294A (en) Stable structure of slope
JP2851816B2 (en) Slope stable structure
JPS6220499Y2 (en)
JP2005002620A (en) Underground reservoir and/or infiltration tank
JPH053580Y2 (en)
JP2750558B2 (en) Drain construction method for golf course green
KR20220075607A (en) Drain culvert with surface water drainge

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050719

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20050802

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20050803

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees