JP2016211250A - Dike-level-raising device - Google Patents
Dike-level-raising device Download PDFInfo
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- JP2016211250A JP2016211250A JP2015096349A JP2015096349A JP2016211250A JP 2016211250 A JP2016211250 A JP 2016211250A JP 2015096349 A JP2015096349 A JP 2015096349A JP 2015096349 A JP2015096349 A JP 2015096349A JP 2016211250 A JP2016211250 A JP 2016211250A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
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本発明は、高潮や洪水側の水量をサイホン導入して、堤防の天端を所定の高さに嵩上げする堤防嵩上げ装置に関する。 The present invention relates to an embankment raising device that siphons the amount of water on a storm surge or flood side and raises the top of the embankment to a predetermined height.
我が国の被害の主要因が豪雨による災害である。河川の氾濫や堤防の決壊(破堤)等を惹き起こす洪水災害、斜面崩壊や土石流等の土砂災害の他、海岸では台風に伴う強風で高潮などと併発する越波がある。これらの越波も合わせて豪雨災害と見なす場合が多い。この越波は防潮堤を超えて堤内地に海水が浸入するもので、浸入量が大きいと家屋の水没や変電設備・鉄道・道路などのインフラに甚大な被害と損害を与えることになる。 The main cause of damage in Japan is disaster caused by heavy rain. In addition to flood disasters that cause river inundation and levee breaks (breakdowns), landslides such as slope failures and debris flows, there are overtopping waves that are accompanied by storm surges due to strong winds associated with typhoons. These overtoppings are often considered to be heavy rain disasters. This overtopping is a seawater intrusion beyond the seawall, and if the amount of intrusion is large, it will cause serious damage and damage to the submerged houses and infrastructure such as substations, railways and roads.
これまで我が国の洪水災害の場合、河川の氾濫や破堤などから、人命やインフラの安全を守るため、従来から麻袋等の丈夫な袋に土砂などの充填物を容れた土嚢を積み上げ、堤防などの天端を嵩上げしてきた。又は、水門を設けて浸水路を遮断してきた。 Until now, in the case of flood disasters in Japan, in order to protect human lives and infrastructure safety from river flooding and bank breakage, etc., sandbags filled with fillers such as earth and sand have been stacked in traditional heavy bags such as hemp bags, etc. Has raised the top of the. Alternatively, a floodgate has been provided to block the inundation channel.
例えば、特許文献1、2に開示されたものでは、氾濫が予想される堤防に吸水性の高分子材を充填した袋などを設けて、増水した水量を吸収することにより、その体積と重量を増大させ、従来の土嚢として利用するものが提案されている。 For example, in the ones disclosed in Patent Documents 1 and 2, a bag filled with a water-absorbing polymer material is provided on a dike that is expected to be flooded, and the volume and weight thereof are reduced by absorbing the increased amount of water. The one which is increased and used as a conventional sandbag has been proposed.
また、特許文献3に開示されたものでは、浮体装置の内部に挿入した浮体機構が流入した増水によって上昇し、必要な高さを確保することにより、洪水の進路を遮断するものが提案されている。 Moreover, in what was disclosed by patent document 3, the floating body mechanism inserted in the inside of a floating body apparatus raises by the water flow which flowed in, and what interrupts the course of a flood by ensuring required height is proposed. Yes.
以上に述べた従来の土嚢を積み上げる工法では、豪雨が発生するたびに大量の土嚢を作り、堤防などに運搬・設置から後始末まで、大変な労力と時間を要しており、急激な増水にも対応しなくてはならないという問題を含んでいた。また、浮体機構は、増水の流入により上昇して浸水路を遮断するもので、設備の設置に多くの費用と労力が費やされ、景観を損ねる懸念が残る、という問題を生じさせていた。 In the conventional method of stacking sandbags as described above, a large amount of sandbags are created each time heavy rains occur, and it takes a lot of labor and time from transportation and installation to the levee etc. Also included a problem that had to be dealt with. In addition, the floating body mechanism is raised by the inflow of increased water to block the inundation channel, which causes a problem that much cost and labor are spent on installation of equipment, and there is a concern that the scenery will be damaged.
本発明は、これまでの構成が有していた問題を解決しようとするものであり、洪水対策としての従来からの麻袋等の丈夫な袋に土砂などを入れた土嚢を積み上げる工法は、作業自体に危険が孕んでいるという問題を含んでいた。そこで、高潮や洪水側の水量のサイホン導入によって、貯水手段を通して嵩上げ手段の体積と重量の増大を図ることにより、危険域に出向くことなく堤防の天端を所定の高さに嵩上げする堤防嵩上げ装置の実現を目的としている。 The present invention intends to solve the problems of the conventional configuration, and the construction method of stacking sandbags containing earth and sand in a strong bag such as a traditional hemp bag as a flood countermeasure is the work itself Included the problem of danger. Therefore, by introducing siphons for the amount of water on the storm surge or flood side, the volume and weight of the raising means are increased through the water storage means, and the top of the embankment is raised to a predetermined height without going to the danger zone. The purpose is to realize.
また、貯水手段に導入した水量を灌漑用水などへの供給を阻止して低水面側に時間差排水することにより、下流域の破堤を抑える他、鎮静化した貯水を低水面側への排水を阻止して域内の灌漑用水などに適時供給することにより、渇水対策や防火用に水利することができる。 In addition, the amount of water introduced into the water storage means is prevented from being supplied to the irrigation water and drained to the low water surface side by time, thereby preventing the bank breakage in the downstream area and draining the sedated water to the low water surface side. By blocking and supplying irrigation water in the area in a timely manner, water can be used for drought countermeasures and fire prevention.
そして、本発明は上記目的を達成するために堤防の内側法面から外側法面に向けて貫通する導入孔を形成し、導入孔と連通して外側法面に接触する面が平面となった袋状の貯水手段及び導入孔の何れか一方のみと連通する堤防の天端に据付ける面が平面となった横長袋状の嵩上げ手段を設け、嵩上げ手段の天端には内部圧力を設定値以上に上昇するのを避けるとともに、設定圧力に保持するリリーフ弁を備え、貯水手段を通して嵩上げ手段の体積と重量の増大を図る堤防嵩上げ装置を提供する。 In order to achieve the above object, the present invention forms an introduction hole that penetrates from the inner slope to the outer slope of the levee, and the surface that communicates with the introduction hole and contacts the outer slope is flat. A horizontally long bag-like raising means with a flat surface installed at the top of the dike communicating with only one of the bag-like water storage means and the introduction hole is provided, and the internal pressure is set at the ceiling of the raising means. There is provided a levee raising device which is provided with a relief valve which keeps a set pressure while avoiding the above rise and which increases the volume and weight of the raising means through the water storage means.
また、第2の課題解決手段は、貯水手段が、導入した水量を灌漑用水などへの供給を阻止して低水面側に時間差排水する他、鎮静化した貯水を低水面側への排水を阻止して灌漑用水などに適時供給する方向制御弁を設けている。 In addition, the second problem solving means is that the water storage means prevents the supply of the introduced water to the irrigation water, etc., and drains the lag water to the low water surface side, and also prevents the sedated water from draining to the low water surface side. In addition, a directional control valve is provided to supply irrigation water in a timely manner.
第3の課題解決手段は、方向制御弁が、導入孔と連通する接続部に短尺筒形の延長管を介設し、延長管の一端側には導入孔の延長方向に向かって縮小する板状のテーパ壁を接合且つテーパ壁の末広端側を導入孔の端末に挿入するとともに、テーパ壁の縮小端が向かい合う空間において延長管を貫通して突出る横から見て逆Lの字形をした円筒状の供給管を設け、上記の向かい合う空間に復帰バネ手段を内装し、復帰バネ手段の両端に接続してテーパ壁の縮小端及び供給管の管口を閉塞する片面が外側にそれぞれ膨らむ球面形をした板状の弁座を内蔵し、弁座及び他の弁座の何れか一方の開弁を順次する連結式の操作稈を備えている。 The third problem-solving means is a plate in which the direction control valve is provided with a short cylindrical extension pipe at a connection portion communicating with the introduction hole, and is reduced toward the extension direction of the introduction hole on one end side of the extension pipe. The tapered wall is joined and the end of the tapered wall at the end of the tapered wall is inserted into the end of the introduction hole. In the space where the tapered ends of the tapered wall face each other, the taper wall has an inverted L shape as viewed from the side protruding through the extension tube. A spherical supply pipe is provided, a return spring means is provided in the above-mentioned facing space, and a spherical surface in which one side of the reduced wall end of the taper wall and the inlet of the supply pipe is inflated outwardly by connecting to both ends of the return spring means. A plate-shaped valve seat having a shape is built in, and a connection type operating rod for sequentially opening one of the valve seat and the other valve seat is provided.
上記第1の課題解決手段による作用は次の通りである。すなわち、高潮や洪水側の水量のサイホン導入によって、貯水手段を通して嵩上げ手段の体積と重量の増大を図ることにより、危険域に出向くことなく堤防の天端を所定の高さに嵩上げすることができる。 The operation of the first problem solving means is as follows. In other words, by introducing siphons for the amount of water on the storm surge or flood side, the top and bottom of the dike can be raised to a predetermined height without going to the danger zone by increasing the volume and weight of the raising means through the water storage means. .
また、第2の課題解決手段による作用は、方向制御弁が、灌漑用水などへの供給を阻止しつつ、貯水手段に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段の鎮静化した貯水を灌漑用水などに適時供給することができる。 Further, the action of the second problem solving means is that the direction control valve can drain the amount of water introduced into the water storage means to the low water surface side by time while preventing the supply to the irrigation water or the like. Alternatively, the water stored in the water storage means can be supplied to irrigation water and the like in a timely manner while preventing drainage to the low water surface side.
而も、第3の課題解決手段による作用は、方向制御弁が、操作稈の手順を下げる又は上げるに単純化したことにより、弁座及び他の弁座の何れか一方の開弁を順序に従って実施することができる。 However, the action of the third problem solving means is that the directional control valve is simplified to lower or raise the operating rod procedure, so that either one of the valve seat and the other valve seat is opened in order. Can be implemented.
上述したように本発明の堤防嵩上げ装置は、危険域に出向くことなく堤防の天端を所定の高さに嵩上げすることができるため、急激な増水にも対応して越波や河川の氾濫を予防するものである。 As described above, the embankment raising device according to the present invention can raise the top of the embankment to a predetermined height without going to the danger area, thus preventing overtopping and river flooding in response to sudden water increase. To do.
また、方向制御弁は、貯水手段に導入した水量を低水面側に時間差排水することができるため、下流域の破堤を抑えるものである。又は、貯水手段の鎮静化した貯水を灌漑用水などに適時供給することができるため、渇水対策や防火用に水利する効果を発揮するものである。 In addition, the direction control valve can discharge the amount of water introduced into the water storage means to the low water surface side with a time difference, and thus suppresses the bank breakage in the downstream area. Alternatively, since the water stored in the water storage means can be supplied to irrigation water and the like in a timely manner, the effect of using water for drought countermeasures and fire prevention is exhibited.
而も、方向制御弁は、弁座及び他の弁座の何れか一方の開弁を順序に従って実施することができるため、操作間違いを抑えて人命と環境及びインフラの安全を守る効果を発揮するものである。 However, the directional control valve can open either the valve seat or the other valve seat according to the order, so that it suppresses operation mistakes and protects human life, the environment, and the safety of the infrastructure. Is.
本発明は、本発明の趣旨の範囲内において、公知技術を付加したものも、本発明から公知技術を除いたものも、本発明の範囲に含まれる。また、本発明の範囲は、以下の具体的な実施例に限定されるものではない。 Within the scope of the gist of the present invention, the present invention includes those to which known techniques are added and those in which known techniques are excluded from the present invention. The scope of the present invention is not limited to the following specific examples.
以下、本発明の実施の形態を図1〜図7に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS.
図1においては、1は堤防嵩上げ装置で、特許請求の範囲に記載されたように「堤防の内側法面から外側法面に向けて貫通する導入孔2を形成し、導入孔2と連通して外側法面に接触する面が平面となった袋状の貯水手段4及び導入孔2の何れか一方のみと連通する堤防の天端に据付ける面が平面となった横長袋状の嵩上げ手段5を設け、嵩上げ手段5の天端には内部圧力を設定値以上に上昇するのを避けるとともに、設定圧力に保持するリリーフ弁5bを備え、貯水手段4を通して嵩上げ手段5の体積と重量の増大を図る」ことができる。 In FIG. 1, reference numeral 1 denotes an embankment raising device, as described in the claims, “forms an introduction hole 2 penetrating from an inner slope of an embankment toward an outer slope, and communicates with the introduction hole 2. A horizontally long bag-shaped raising means in which the surface to be installed at the top of the dike communicating with only one of the bag-shaped water storage means 4 and the introduction hole 2 whose surface contacting the outer slope is flat 5 is provided, and the top end of the raising means 5 is provided with a relief valve 5b that keeps the internal pressure from rising to a set value or higher and increases the volume and weight of the raising means 5 through the water storage means 4. ”.
上記の堤防嵩上げ装置1は、高潮や洪水側の水量のサイホン導入によって、貯水手段4を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げしようとするものである。 The above-mentioned embankment raising device 1 is designed to increase the volume and weight of the raising means 5 through the water storage means 4 by introducing a siphon of the amount of water on the storm surge or the flood side, so that the top of the embankment can be used in response to sudden water increase. It is intended to raise to a predetermined height.
図1、2においては、2は導入孔で、堤体の中程を貫通しており、堤防の外側法面から内側法面に向けて耐震性に優れたポリエチレン製パイプを敷設している。この導入孔2の敷設高さは内側法面側を低位置にしている。図2に示すように、導入孔2は貯水手段4と連通し、嵩上げ手段5は貯水手段4と連通している。或は、堤防の外側法面と堤内地の高低差が小さい場合は、嵩上げ手段5は導入孔2と連通することができる。 In FIGS. 1 and 2, reference numeral 2 denotes an introduction hole, which penetrates the middle of the bank body, and lays polyethylene pipes excellent in earthquake resistance from the outer slope surface to the inner slope face. The laying height of the introduction hole 2 is set to the low position on the inner slope side. As shown in FIG. 2, the introduction hole 2 communicates with the water storage means 4, and the raising means 5 communicates with the water storage means 4. Alternatively, the raising means 5 can communicate with the introduction hole 2 when the height difference between the outer slope of the dike and the dike ground is small.
上記の導入孔2は、敷設工法の一例を説明すると、例えば、圧力鋼管などの先端部に開削工具が接続され、推進工法などにより圧力鋼管に押圧力と回転力を加えて外側法面から内側法面に向けて貫通する。継いて、開削工具を取外した圧力鋼管の先端にポリエチレン製パイプを連結させ、その後、圧力鋼管をひき抜くタイミングに合わせて連結したポリエチレン製パイプをスリップ敷設する。尚、圧力鋼管の外径とポリエチレン製パイプの外径は極力等しいものとし、ポリエチレン製パイプに代えて耐食性の圧力鋼管を直接敷設してもよい。 The introduction hole 2 is described as an example of the laying method. For example, a cutting tool is connected to the tip of a pressure steel pipe or the like, and a pressing force and a rotational force are applied to the pressure steel pipe by a propulsion method or the like. Penetrate to the slope. Next, the polyethylene pipe is connected to the tip of the pressure steel pipe from which the cutting tool has been removed, and then the connected polyethylene pipe is slip-laid in accordance with the timing of pulling out the pressure steel pipe. Note that the outer diameter of the pressure steel pipe and the outer diameter of the polyethylene pipe may be equal to each other as much as possible, and a corrosion-resistant pressure steel pipe may be directly laid instead of the polyethylene pipe.
ここで、導入孔2は、海側や河川側に突出した先端2a(突出し部)に巾着形をした格子状(例えば、格子目の隙間が1mm〜5mm程度)の金網2cを被せ、金網2cの首回りに固定バンド2dを締付けて固定している。これにより漂着物や木端などの浸入を防いでいる。尚、金網2cは耐食性、耐摩耗性も良好なアルミニウム青銅から形成している。 Here, the introduction hole 2 covers a wire mesh 2c having a lattice-like shape (for example, a gap between lattices of about 1 mm to 5 mm) on a tip 2a (protruding portion) that protrudes toward the sea side or the river side. The fixing band 2d is tightened and fixed around the neck. This prevents intrusion of wreckage and wood edges. The wire mesh 2c is made of aluminum bronze having good corrosion resistance and wear resistance.
上記のアルミニウム青銅は、Alを5〜11%含むCu合金(Fe,Mn,Niを少量含有)で、朝戸順氏によって発明された成分のものをアームスブロンズとも言われ、展延性に富んでいる。また、鋳造したままのものは結晶粒が粗大化するのでFe,Mnなどが添加される。加工性もよく、強度も高く、耐食性・耐摩耗性も良好である。加工材には機械部品や船舶用部品などに、鋳造材は歯車、軸受、ブッシュなどに用いられている。 The above-mentioned aluminum bronze is a Cu alloy containing 5 to 11% of Al (containing a small amount of Fe, Mn, Ni), and the component invented by Jun Asato is also called Arms bronze, and has a good spreadability. . Moreover, since the crystal grain becomes coarse in the as-cast one, Fe, Mn and the like are added. Good workability, high strength, good corrosion resistance and wear resistance. Machined materials are used for machine parts and marine parts, and cast materials are used for gears, bearings, bushes, and the like.
図2、3,7においては、4は貯水手段で、外側法面に接触する面が平面となった袋状(例えば、水平断面が円弧形)に設けており、消防用ホースと同仕様の内装にゴムシートと外装に幾層にも編み込まれた綿打コードとでシート層を構成し、サイホン導入する際の導入圧と貯水圧を数時間から場合によっては数週間に亘って耐えることができる。また、貯水手段4は柔軟性と耐久性を満足する範囲内で可及的に薄い(例えば、1、0mm以下)形状にしている。尚、堤体の補強目的も与えられ、補強に応じた体積と据える面積を確保している。 2, 3, and 7, 4 is a water storage means, which is provided in a bag shape (for example, an arc-shaped horizontal section) with a flat surface in contact with the outer slope, and has the same specifications as a fire hose. A sheet layer is composed of a rubber sheet on the interior of the fabric and cotton striking cords knitted on the exterior, and it can withstand the introduction pressure and water storage pressure for several hours to several weeks when introducing a siphon. Can do. Moreover, the water storage means 4 is made as thin as possible (for example, 1 mm or less) within a range satisfying flexibility and durability. In addition, the purpose of reinforcing the levee body is given, and the volume and installation area are secured according to the reinforcement.
上記の貯水手段4は、防潮堤に設置する現場では耐食性の良好な連結金具4a(例えば、消防用ホース同士を接続する接続金具と同規格品でアルミダイキャスト製)を介して導入孔2の末端2bと連通している。図3に示すように、貯水手段4は蛇腹袋状に形成したものが望ましく、外周面には一本のらせん形に巻いたコイル状のばね鋼又はリング状にしたばね鋼が一定の距離を置いて編み込まれている。これにより伸縮可能に設けて必要な長さと伸長した際の所定の吸気量を確保している。尚、表面は劣化防止のために耐候性樹脂材でコーティングしている。 The water storage means 4 is connected to the introduction hole 2 via a connecting metal fitting 4a having good corrosion resistance (for example, a connecting metal for connecting fire hoses to each other and made of aluminum die cast) at a site installed on a seawall. It communicates with the end 2b. As shown in FIG. 3, the water storage means 4 is preferably formed in a bellows bag shape, and a coil-shaped spring steel or ring-shaped spring steel wound in a spiral shape has a certain distance on the outer peripheral surface. It is laid and knitted. As a result, it can be extended and contracted to ensure a required length and a predetermined intake air amount when extended. The surface is coated with a weather resistant resin material to prevent deterioration.
また、貯水手段4は、据付け部には座りの良い台座4c(例えば、天端中央を窪ませた多孔質の弾性ゴムや型に入れて固めたコンクリート)に置かれ、他の貯水手段4と一定の間隔を保って外側法面に据えられて横列している。また、貯水手段4の下部方には貯水した際に生じる泥水や泥層を必要時に排出する開閉が可能なファスナー4bを備えている。この貯水手段4は運搬・搬入の後、堤の天端から外側法面を背にして投げ落とされ、連結金具4aや連通金具5aの取付け部から吸気が送り込まれて拡大することができる。 In addition, the water storage means 4 is placed on a pedestal 4c (for example, a porous elastic rubber having a hollowed center at the top and a concrete solidified in a mold) in the installation portion, and the other water storage means 4 and They are placed on the outside slope at a certain interval and are lined up. Further, a lower portion of the water storage means 4 is provided with a fastener 4b that can be opened and closed to discharge muddy water or a mud layer generated when the water is stored when necessary. This water storage means 4 can be thrown down from the top of the bank with the outer slope facing the back after transportation and carry-in, and intake air can be sent from the attachment part of the connection fitting 4a and the connection fitting 5a to expand.
而も、貯水手段4は、図7に示すように、体積と重量を増大した後においても、強風などによって惹き起こす共倒れを防止するため、貯水手段4と他の貯水手段4とが曳き合う紐状の渡し綱4dを設けている。尚、貯水手段4には適切な位置に耳シート4cを取付け、この耳シート4cに設けた留め具4fに渡し綱4dが曳き留められている。 As shown in FIG. 7, the water storage means 4 is a string in which the water storage means 4 and the other water storage means 4 are in contact with each other in order to prevent the collapsing caused by strong winds even after the volume and weight are increased. 4d is provided. An ear sheet 4c is attached to the water storage means 4 at an appropriate position, and a transfer rope 4d is wound around a fastener 4f provided on the ear sheet 4c.
上記のバネ鋼は、炭素を0,5〜1,0%含有する中高炭素鋼と、これにSi−Mn,Mn−Cr,Cr−V,Mn−Cr−B,Si−Cr,Cr−Moなどを添加した合金鋼の計9種類がJISで規定されている。ばねの製造工程には1素材―熱間・冷却成形―焼き入れ・焼もどし、2素材―パテンティング処理―冷間加工、3素材―焼き入れ・焼もどし―冷間成形、などの中から適当なものを選定している。 The above spring steel includes medium-high carbon steel containing 0.5 to 10% of carbon, Si-Mn, Mn-Cr, Cr-V, Mn-Cr-B, Si-Cr, Cr-Mo. A total of nine types of alloy steels to which etc. are added are defined by JIS. Suitable for spring manufacturing process: 1 material-hot / cool forming-quenching / tempering 2 material-patenting treatment-cold processing, 3 materials-quenching / tempering-cold forming Is selected.
上記のゴムシートは、多孔質の弾性ゴム成形体(例えば、バネ定数が0,49〜4,7kN/センチメートル)から形成しており、耐酸性、耐アルカリ性、耐水性、耐微生物性、耐油性、耐有機溶剤性、耐圧縮性に優れた材質で、それ自体は変形することなく、且つ長期にわたる繰り返えし圧縮にも塑性変形が小さいものである。また、水平荷重による剪断力に耐える必要があるので、その剪断弾性係数は、0,1〜0,7N/mm2に設定している。 The rubber sheet is formed from a porous elastic rubber molded body (for example, a spring constant of 0, 49 to 4, 7 kN / cm), and has acid resistance, alkali resistance, water resistance, microbial resistance, and oil resistance. It is a material that has excellent properties, organic solvent resistance, and compression resistance, and does not deform itself, and has little plastic deformation in repeated compression over a long period of time. Moreover, since it is necessary to endure the shearing force by a horizontal load, the shear elastic modulus is set to 0, 1 to 0, 7 N / mm2.
また、多孔質の弾性ゴムは、空隙率が5%より小さいと等価減衰係数が小さくなって繰り返えし圧縮を取り除くことができなくなり、空隙率が50%より大きいと圧縮強度が不足するため、空隙率を5〜50%の範囲において、歪を5〜15%にできるように、而も、所定の柔軟性及び耐久性を備えた空隙率に調整したものを使用している。 In addition, when the porosity of the porous elastic rubber is less than 5%, the equivalent damping coefficient becomes small and it becomes impossible to remove compression repeatedly. When the porosity is more than 50%, the compression strength is insufficient. In addition, in the range of the porosity of 5 to 50%, a material adjusted to a porosity having a predetermined flexibility and durability is used so that the strain can be 5 to 15%.
図2、3,6においては、5は嵩上げ手段で、堤防の天端に据付ける面が平面(例えば、断面が円弧形)となる横長袋状に設けており、貯水手段4と同仕様の内装にゴムシートと外装に幾層にも編み込まれた綿打ちコードとでシート層を構成している。この嵩上げ手段5は貯水手段4の上部に取り付けた連通金具5a(例えば、連結金具4aと同規格品)を介して連通している。また、嵩上げ手段5は他の嵩上げ手段5と堤の天端に隙間なく縦列している。尚、連結金具4aと連通金具5aの詳細な図面や仕様説明を省略します。 2, 3, and 6, 5 is a raising means, and a surface to be installed on the top end of the dike is provided in a horizontally long bag shape having a flat surface (for example, an arc-shaped cross section). The sheet layer is composed of a rubber sheet in the interior of the fabric and cotton cords woven in several layers in the exterior. The raising means 5 communicates with a communication fitting 5a attached to the upper part of the water storage means 4 (for example, the same standard product as the connection fitting 4a). Further, the raising means 5 is arranged in series with other raising means 5 at the top of the bank without any gap. Detailed drawings and explanation of specifications of the connecting bracket 4a and communication bracket 5a are omitted.
上記の嵩上げ手段5は、高潮や洪水側の水量のサイホン導入により、貯水手段4に吸気した空気を導入して拡張し、さらに、その空気がサイホン導入によって圧縮されることから、嵩上げ手段5の天端には内部圧力が設定値を境にして機敏な弁の開閉が要求されるリリーフ弁5bを設けている。また、嵩上げ手段5は柔軟性と耐久性を満足する範囲内で可及的に薄い(例えば、1、0mm以下)形状にしている。尚、嵩上げ手段5の拡張時の高さが大凡1,0m、敷設長が5,0m以下に設定(所定の高さ)にしている。 The above raising means 5 introduces and expands the air sucked into the water storage means 4 by introducing a siphon of the amount of water on the storm surge or flood side, and further, the air is compressed by introducing the siphon. The top end is provided with a relief valve 5b in which the internal pressure is required to open and close quickly with a set value as a boundary. Further, the raising means 5 is made as thin as possible (for example, 1 mm or less) within a range satisfying flexibility and durability. In addition, the height when the raising means 5 is expanded is set to approximately 1.0 m, and the laying length is set to a predetermined height of 5,000 m or less.
上記のリリーフ弁5bは、防潮堤に設置する現場においては耐食性の良好なアルミダイキャスト製を使用しており、内部圧力を設定値以上に上昇するのを避けるとともに、設定圧力に保持することができる。ここで、設定圧力を説明すると、嵩上げ手段5の拡張時の高さが1、0m以内の場合、設定値を0,1〜0,125Mpa[ゲージ圧力]範囲に調節することができる。尚、既製品を使用するため、その説明と詳細な図面を省略します。 The relief valve 5b described above is made of aluminum die cast with good corrosion resistance at the site where it is installed on the seawall, so that the internal pressure can be prevented from rising above the set value and kept at the set pressure. it can. Here, the set pressure will be described. When the height when the raising means 5 is expanded is within 1 and 0 m, the set value can be adjusted within the range of 0, 1 to 0, 125 MPa [gauge pressure]. In addition, since the off-the-shelf product is used, the explanation and detailed drawings are omitted.
また、嵩上げ手段5は、図6に示すように、他の嵩上げ手段5とともに、体積と重量を増大させた後において、高潮や洪水側の水圧などを受けた際のずれ防止や流失を防止するために、堤防の内側法面に据付け又は埋設したブロック5d(例えば、型に入れて固めたコンクリート又は金網に石などの重量物を詰め込んだもの)を吊下げる吊下げ具5eとの間(例えば、河川の場合は下流方向に斜引き)に紐状の曳き綱5cを付勢している。又は、堤防の天端に敷設長毎に固定した図示省略の収納ボックスに元端を接続させ、天端に伸ばした先端を他の収納ボックスと接続してもよい。 Further, as shown in FIG. 6, the raising means 5 together with the other raising means 5, after increasing the volume and weight, prevents slippage or loss when subjected to storm surge or flood water pressure. Therefore, a block 5d installed or embedded on the inner slope of the dike (for example, a concrete or wire net packed with a heavy object such as a stone) and suspended from a hanging tool 5e (for example, In the case of a river, the string-shaped cord 5c is urged in a slanting direction in the downstream direction). Alternatively, the base end may be connected to a storage box (not shown) fixed to the top end of the dike for each laying length, and the tip extended to the top end may be connected to another storage box.
而も、嵩上げ手段5は、据付け安定性(例えば、外側法面側)を高めるために、他の嵩上げ手段5と接合する端部と貯水手段4に設けた留め金具4f付きの耳シート4cを経由して台座4eの基礎部に埋設したブロック5dを吊下げる吊下げ具5eとの間に紐状の曳き綱5cを付勢している。尚、ブロック5dに替えて、コンクリート舗装された堤防側端を挟み付ける図示省略の挟み金具などに接続してもよい。 In addition, the raising means 5 is provided with an end sheet 4c with a fastener 4f provided on the end portion joined to the other raising means 5 and the water storage means 4 in order to enhance the installation stability (for example, the outer slope side). The string-shaped string 5c is urged between the hanging tool 5e that suspends the block 5d embedded in the base portion of the base 4e via the via. Instead of the block 5d, it may be connected to an unillustrated pinch metal fitting for pinching the concrete paved levee side end.
すなわち、堤防嵩上げ装置1は、高潮や洪水側の水量のサイホン導入によって、貯水手段4を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げすることができる。 That is, the embankment raising device 1 increases the volume and weight of the raising means 5 through the water storage means 4 by introducing a siphon of the amount of water on the storm surge or the flood side, so that the top of the embankment can be used in response to sudden water increase. It can be raised to a predetermined height.
図3、4,5においては、3は方向制御弁で、特許請求の範囲に記載されたように「貯水手段4が、導入した水量を灌漑用水などへの供給を阻止して低水面側に時間差排水する他、鎮静化した貯水を低水面側への排水を阻止して灌漑用水などに適時供給する方向制御弁3…一部省略…は、導入孔2と連通する接続部に短尺筒形の延長管3aを介設し、延長管3aの一端側には導入孔2の延長方向Xに向かって縮小する板状のテーパ壁3dを接合且つテーパ壁3dの末広端側を導入孔2の端末2bに挿入するとともに、テーパ壁3dの縮小端が向かい合う空間において延長管3aを貫通して突出る横から見て逆Lの字形をした円筒状の供給管3hを設け、上記の向かい合う空間に復帰バネ手段3gを内装し、復帰バネ手段3gの両端に接続してテーパ壁3dの縮小端及び供給管3hの管口を閉塞する片面が外側にそれぞれ膨らむ球面形をした板状の弁座3e、3fを内蔵し、弁座3e及び他の弁座3fの何れか一方の開弁を順次する連結式の操作稈3iを備え」ている。 3, 4, and 5, 3 is a directional control valve. As described in the claims, “the water storage means 4 prevents the supplied water amount from being supplied to irrigation water and the like to the low water surface side. In addition to draining time difference, the directional control valve 3 for supplying sedated water to irrigation water etc. in a timely manner by blocking drainage to the low water surface side… Some omitted… is a short cylindrical shape at the connection part communicating with the introduction hole 2 A plate-like taper wall 3d that shrinks in the extending direction X of the introduction hole 2 is joined to one end side of the extension pipe 3a, and the divergent end side of the taper wall 3d is connected to the introduction hole 2 at one end side of the extension pipe 3a. In addition to being inserted into the terminal 2b, a cylindrical supply pipe 3h having an inverted L shape when viewed from the side protruding through the extension pipe 3a in a space where the reduced end of the tapered wall 3d faces is provided in the above-mentioned facing space. The return spring means 3g is built in and connected to both ends of the return spring means 3g. A plate-shaped valve seat 3e and 3f each having a spherical shape in which one side that closes the reduced end of the super wall 3d and the pipe port of the supply pipe 3h bulges outward is incorporated, and any of the valve seat 3e and the other valve seat 3f It has a connected operation rod 3i that sequentially opens one of the valves. "
上記の方向制御弁3は、灌漑用水などへの供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水しようとするものである。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水などに適時供給しようとするものである。而も、操作稈3iの手順を下げる又は上げるに単純化することで、弁座3e及び他の弁座3fの何れか一方の開弁を順序に従って実施しようとするものである。 The directional control valve 3 is intended to drain the amount of water introduced into the water storage means 4 to the low water surface side while preventing the supply to irrigation water or the like. Alternatively, the sedated water stored in the water storage means 4 is timely supplied to irrigation water or the like while preventing drainage to the low water surface side. However, by simplifying the procedure of the operating rod 3i to be lowered or raised, one of the valve seat 3e and the other valve seat 3f is opened in order.
図4、5においては、3aは延長管で、貯水手段4と導入孔2とが連結する接続部(例えば、連結金具4a)に介設しており、この延長管3aは鋳物又は強化プラスチック成形体から短尺筒形に形成している。ここで,導入孔2との連通は、延長管3aと導入孔2の端末2bとが突き合わされ、双方の管端を内嵌した接続バンド3cの図示省略の締め付けボルトを締上げることで連結する。尚、突き合わされた管端には図示省略のゴムパッキンをそれぞれ内装して漏水防止を図っている。 4 and 5, reference numeral 3a denotes an extension pipe, which is interposed in a connecting portion (for example, a connecting metal fitting 4a) where the water storage means 4 and the introduction hole 2 are connected. The extension pipe 3a is formed by casting or reinforced plastic molding. The body is formed into a short cylindrical shape. Here, the communication with the introduction hole 2 is performed by tightening the tightening bolts (not shown) of the connection band 3c in which the extension pipe 3a and the end 2b of the introduction hole 2 are abutted and both pipe ends are fitted. . In addition, a rubber packing (not shown) is provided in each of the butted pipe ends to prevent water leakage.
上記の延長管3aは、貯水手段4との連通について、火急な事態に備えて簡易な接続が要求されることから、貯水手段4と導入孔2の端末2bとが連通していた同一形状の連結金具4a(例えば、消防ホース同士を接続するアルミダイキャスト製の接続金具と同規格品)を使用して取付けている。 The extension pipe 3a is connected to the water storage means 4 because a simple connection is required in preparation for an emergency, so that the water storage means 4 and the terminal 2b of the introduction hole 2 have the same shape. It is attached using a connecting fitting 4a (for example, an aluminum die-casting fitting for connecting fire hoses to each other and the same standard product).
また、延長管3aは、一端側の繰り入れ方向(例えば、導入孔2の延長方向)に向かって均一に縮小する板状のテーパ壁3dを接合(例えば、内装品などを組み付けた後に均等分割3〜6方向を接続)するとともに、テーパ壁3dの末広端側が導入孔2の端末2bに挿入している。また、テーパ壁3dの縮小端が向かい合う空間に供給管3hの管口が相対している。而も、その向かい合う空間には復帰バネ手段3gを内装している。 Further, the extension pipe 3a is joined with a plate-like taper wall 3d that uniformly shrinks toward the feeding direction (for example, the extending direction of the introduction hole 2) on one end side (for example, after the interior parts are assembled, the equal division 3 ˜6 directions are connected), and the divergent end side of the tapered wall 3d is inserted into the terminal 2b of the introduction hole 2. Further, the pipe port of the supply pipe 3h is opposed to the space where the reduced ends of the tapered wall 3d face each other. Moreover, the return spring means 3g is provided in the facing space.
上記の供給管3hは、延長管3aと一体成形しており、延長管3aを貫通して下方に突出る横から見て逆Lの字形をした円筒状に形成している。この供給管3hの管端が以下図示省略の堤防の外側法面に埋設したU字溝の上方部に向かうことにより、鎮静化した貯水がU字溝を通って接続した灌漑用水などに供給される。尚、U字溝に替えてポリエチレン製管路を敷設してもよい。 The supply pipe 3h is integrally formed with the extension pipe 3a, and is formed in a cylindrical shape having an inverted L shape when viewed from the side penetrating the extension pipe 3a and projecting downward. The pipe end of the supply pipe 3h is directed to the upper part of the U-shaped groove embedded in the outer slope of the embankment (not shown), so that the sedated water is supplied to irrigation water connected through the U-shaped groove. The In addition, it may replace with a U-shaped groove and may lay polyethylene pipes.
上記の復帰バネ手段3gは、一本のばね鋼をらせん形に巻いたコイル状に形成しており、テーパ壁3dの縮小端と供給管3hの管口とが向かい合う空間に介装している。この復帰バネ手段3gが有する適度のばね機能の効力により、常に元の位置に戻る復帰力を有していることから、復帰バネ手段3gの両端に片面が外側にそれぞれ膨らむ球面形をした板状の弁座3e、3fが接続する。これにより、弁座3e、3fには復帰バネ手段3gへの初期圧縮時に生じる反発力が与えられている。 The return spring means 3g is formed in a coil shape in which a single spring steel is spirally wound, and is interposed in a space where the reduced end of the tapered wall 3d and the tube opening of the supply pipe 3h face each other. . The return spring means 3g has a return force that always returns to its original position due to the effect of an appropriate spring function, so that a plate-like plate shape in which one side swells outward at both ends of the return spring means 3g. The valve seats 3e and 3f are connected. Thereby, the repulsive force which arises at the time of the initial compression to the return spring means 3g is given to the valve seats 3e and 3f.
図5においては、3eは導入孔2側の弁座で、3fは供給管3h側の弁座であって、鋳物又は強化プラスチック成形体から形成している。この弁座3e、3fはテーパ壁3dの縮小端と供給管3hの管口に密着するとともに、弁座3e、3fの内側面同士に復帰バネ手段3gの両端が接続することにより、弁座3eがテーパ壁3dの縮小端と他の弁座3fが供給管3hの管口を閉塞している。 In FIG. 5, 3e is a valve seat on the introduction hole 2 side, and 3f is a valve seat on the supply pipe 3h side, which is formed from a cast or reinforced plastic molded body. The valve seats 3e and 3f are in close contact with the reduced end of the tapered wall 3d and the inlet of the supply pipe 3h, and both ends of the return spring means 3g are connected to the inner side surfaces of the valve seats 3e and 3f, so that the valve seat 3e However, the reduced end of the taper wall 3d and the other valve seat 3f close the pipe port of the supply pipe 3h.
上記の弁座3e、3fを説明すると、通常時は、弁座3eと他の弁座3fがテーパ壁3dの縮小端と供給管3hの管口を閉塞させる。豪雨発生期は、テーパ壁3dの縮小端を閉塞していた弁座3eを開弁させる。灌漑用水などへの供給時は、供給管3hの管口を閉塞していた他の弁座3fを開弁させる、作用が生じることから、順序に従って弁座3eと他の弁座3fを操作することができる連結式の操作稈3iを備えている。 The above-described valve seats 3e and 3f will be described. Normally, the valve seat 3e and the other valve seat 3f block the reduced end of the tapered wall 3d and the inlet of the supply pipe 3h. During the heavy rain occurrence period, the valve seat 3e that has closed the reduced end of the tapered wall 3d is opened. When supplying to irrigation water or the like, the valve seat 3e and the other valve seat 3f are operated according to the order because the valve seat 3f that has closed the pipe port of the supply pipe 3h is opened. A connection type operating rod 3i is provided.
図5においては、3iは操作稈で、一端が弁座3e、3fの中心部に狭隘に挿通し且つ所定位置内に収める横方向ロッド3jを設け、横方向ロッド3jの他端が、供給管3hの曲がり部に斜め通しした斜方向ロッド3mの一端と歯合可能に連結し、斜方向ロッド3mの中間点が、支承ロッド3kの一端と回動可能に連結し、支承ロッド3kの他端が、供給管3hの曲がり最遠端部と回動可能に固定し、斜方向ロッド3mの他端が、縦方向ロッド3nの一端と回動可能に連結し、Uの字状に曲げた縦方向ロッド3nの他端が、斜吊りロッド3pの一端と回動可能に連結し、斜吊りロッド3pの他端が、棒レバー3qの中間点と梃子利用可能に連結し、棒レバー3qの一端が、供給管3hの外周壁と回動可能に固定している。 In FIG. 5, 3i is an operating rod, one end is provided with a lateral rod 3j that is narrowly inserted into a central portion of the valve seats 3e and 3f and accommodated within a predetermined position, and the other end of the lateral rod 3j is a supply pipe The slanted rod 3m is connected to one end of the oblique rod 3m that is obliquely passed through the bent portion of 3h so that it can be engaged with each other, and the middle point of the slanted rod 3m is rotatably coupled to one end of the support rod 3k. Is fixed to the farthest end of the bend of the supply pipe 3h so as to be rotatable, and the other end of the oblique rod 3m is rotatably connected to one end of the longitudinal rod 3n and bent into a U-shape. The other end of the directional rod 3n is pivotally connected to one end of the slanting rod 3p, and the other end of the slanting rod 3p is coupled to the intermediate point of the bar lever 3q so that the lever can be used. Is fixed to the outer peripheral wall of the supply pipe 3h so as to be rotatable.
ここにおいて、図5に示す吹き出し図のように、横方向ロッド3jの平行移動(例えば、供給管3hの中心軸に沿った動き)を可能にするため、横方向ロッド3jの他端に標準ギアを分割した右下−45°の片割り歯車3rを形成し、斜方向ロッド3mの一端に標準ギアを分割した右上45°の片割り歯車3sを形成する。更に、歯合した片割り歯車3rと片割り歯車3s双方の軸心にそれぞれ開孔する支承孔3t、3uを設け、この支承孔3t、3uにコの字形をした棒状の支持ピン3vが挿通し、而も、支持ピン3vの両端部に抜け落ち防止用のC形をした板状の留リング3w、3xがそれぞれ閉嵌している。 Here, as shown in a balloon diagram shown in FIG. 5, in order to enable parallel movement of the lateral rod 3j (for example, movement along the central axis of the supply pipe 3h), a standard gear is provided at the other end of the lateral rod 3j. A right lower -45 ° split gear 3r is formed, and an upper right 45 ° split gear 3s is formed at one end of the oblique rod 3m. Further, bearing holes 3t and 3u are formed in the shaft centers of the meshed split gear 3r and the split gear 3s, respectively, and a U-shaped bar-like support pin 3v is inserted into the support holes 3t and 3u. However, C-shaped plate-shaped retaining rings 3w and 3x for preventing falling off are respectively fitted to both ends of the support pin 3v.
上記の右下−45°の片割り歯車3rの歯合角度(例えば、θ=略45°)を説明すると、横方向ロッド3jの他端が垂直方向(例えば、水平面に直角を成す上端面)に対し180°〜略135°の範囲に形成され、片割り歯車3rと同ピッチの右上45°の片割り歯車3sの歯合角度(例えば、θ=略45°)は、斜方向ロッド3mの一端が垂直方向(例えば、水平面に直角を成す上端面)に対し0°〜略45°の範囲に形成することにより、斜方向ロッド3mの揺動角θ=90°が保たれる。 The meshing angle (for example, θ = approximately 45 °) of the split gear 3r at the lower right of −45 ° will be described. The other end of the lateral rod 3j is in the vertical direction (for example, the upper end surface forming a right angle with the horizontal plane). The meshing angle (for example, θ = approximately 45 °) of the split gear 3s at the upper right 45 ° having the same pitch as that of the split gear 3r is 180 ° to approximately 135 °. By forming one end in the range of 0 ° to about 45 ° with respect to the vertical direction (for example, the upper end surface perpendicular to the horizontal plane), the swing angle θ of the oblique rod 3m is maintained at 90 °.
継いて、縦方向ロッド3nは、供給管3hの中心軸を通っており、他端が供給管3hの管端を巻き込みながら、棒レバー3qの一端を回動可能に固定する符号省略の対峙板内を挿通している。更に、縦方向ロッド3nの他端は斜吊りロッド3pの一端と回動可能に連結し、斜吊りロッド3pの他端が棒レバー3qの中間点と梃子利用可能に連結している。これにより、縦方向ロッド3nに連結した斜方向ロッド3mの一端を屈曲させ、斜方向ロッド3mは歯合する横方向ロッド3jを同調屈曲させることができる。従って、横方向ロッド3jが延長管3aの中心軸に沿った平行移動を可能にしている。 Next, the longitudinal rod 3n passes through the central axis of the supply pipe 3h, and the other end of the supply pipe 3h is wrapped around the end of the supply pipe 3h so that one end of the bar lever 3q is rotatably fixed. The inside is inserted. Further, the other end of the vertical rod 3n is rotatably connected to one end of the slanting rod 3p, and the other end of the slanting rod 3p is coupled to the intermediate point of the bar lever 3q so that the lever can be used. Thereby, one end of the oblique rod 3m connected to the longitudinal rod 3n can be bent, and the oblique rod 3m can bend the transverse rod 3j engaged with the rod. Accordingly, the lateral rod 3j enables translation along the central axis of the extension pipe 3a.
上記の操作稈3iを説明すると、操作する棒レバー3qは水平位置からの梃子利用時に一時固定が必要なことから、棒レバー3qの一端を回動可能に固定する符号省略の鋼製の対峙板内側の円弧線上に図示省略の半球状に窪んだ上・中・下のストッパ溝を設けるとともに、棒レバー3qの一端に各ストッパ溝に半嵌合する図示省略の半球形の金属ボールを形成する。これにより、上げ時、水平時、下げ時の一時固定を実現させている。尚、棒レバー3qの他端部に表面に滑り止め対策として、凹凸状のゴムシートなどを被せて加工する他、足先操作の場合はリング状のペダル方式を採用している。 Explaining the operation rod 3i, the rod lever 3q to be operated needs to be temporarily fixed when using the lever from the horizontal position. Upper, middle and lower stopper grooves, not shown, are provided on the inner arc line, and hemispherical metal balls (not shown) that are semi-fitted to the stopper grooves are formed at one end of the rod lever 3q. . This realizes temporary fixation at the time of raising, leveling, and lowering. In addition, as a countermeasure against slipping, the other end of the bar lever 3q is processed by covering it with an uneven rubber sheet or the like, and in the case of a foot tip operation, a ring-type pedal system is adopted.
上記の鋳物は、鋳型に溶けた鋳鉄や鋳鋼を流し込んだ後に冷却したもので、鋳物砂と呼ばれる砂を造型し一回の鋳造ごとに鋳型を壊し新たに造型するものや、型を砂型造形法や金属で作った鋳型を使って造型するものがある。この型の材料には鋳鉄、黄銅などが使われている。延長管3aやテーパ壁3dなどは精密な鋳物や鮮明な表面を出す造型機を使って型を作り生産している。 The above castings are cooled after pouring cast iron or cast steel melted into the mold, molding sand called casting sand and breaking the mold after each casting, or molding the mold by sand molding method Some molds are made using molds made of metal or metal. Cast iron and brass are used for this type of material. The extension pipe 3a, the tapered wall 3d, and the like are produced by making a mold using a precision casting or a molding machine that produces a clear surface.
上記の強化プラスチック(FRP)は、不飽和ポリエステル樹脂を常温・常圧でも硬化するものを使用することとし、押し出し成形、圧縮成形、射出成形、金型成形の内から成形が容易且つ量産性に優れたものを選択している。このFRPは、加工が容易且つ安価で軽量、高力、腐食しにくい等の特徴を有している。 The above-mentioned reinforced plastic (FRP) is made of an unsaturated polyester resin that can be cured at room temperature and pressure, and can be easily and mass-produced from extrusion molding, compression molding, injection molding, and mold molding. Choose an excellent one. This FRP has features such as easy processing, low cost, light weight, high strength, and resistance to corrosion.
上述した操作稈3iの手順を説明すると、平時は、棒レバー3qを水平位置にすることで、フリー状態に置かれた弁座3e、3fはテーパ壁3dの縮小端と供給管3hの管口を閉塞して小動物などの浸入を防ぐ。洪水発生時は、棒レバー3qを下げ位置に梃子利用することで、貯水手段4側にスライドした横方向ロッド3jはテーパ壁3dの縮小端を閉塞していた弁座3eを引戻して開弁する。すると、開弁した隙間を通して洪水側の水量をサイホン導入する他、導入した水量を灌漑用水などへの供給を阻止して低水面側に時間差排水を行うことができる。 The procedure of the operation rod 3i described above will be explained. During normal times, the valve lever 3q is placed in the horizontal position by setting the bar lever 3q to the horizontal position, so that the valve seats 3e and 3f are freed from the reduced end of the tapered wall 3d and the pipe port of the supply pipe 3h. To prevent entry of small animals. At the time of flooding, the lever rod 3q is leveraged to the lowered position so that the lateral rod 3j slid to the water storage means 4 side opens the valve seat 3e that has closed the reduced end of the tapered wall 3d. . Then, in addition to siphoning the amount of water on the flood side through the opened gap, it is possible to prevent the supply of the introduced amount of water to irrigation water and the like to perform time-lag drainage on the low water surface side.
継いて、渇水対策時は、棒レバー3qを水平位置に梃子利用して貯水手段4に導入した水量(泥水)の鎮静化を図った後、棒レバー3qを上げ位置に梃子利用することで、導入孔2側にスライドした横方向ロッド3jは供給管3hの管口を閉塞していた他の弁座3fを押上げて開弁する。すると、開弁した隙間を通して鎮静化した貯水を低水面側などへの排水を阻止して灌漑用水などに適時供給することができる。 Next, when drought measures are taken, the bar lever 3q is used in the horizontal position to reduce the amount of water (muddy water) introduced into the water storage means 4 and then the bar lever 3q is used in the raised position to use the lever. The lateral rod 3j slid toward the introduction hole 2 pushes up the other valve seat 3f that has closed the pipe port of the supply pipe 3h to open the valve. Then, the stored water that has been sedated through the opened gap can be supplied to irrigation water and the like in a timely manner by preventing drainage to the low water surface side.
尚、操作稈3iを電磁式とした場合、縦方向ロッド3nの他端には電気回路からの電気信号で弁の切り替え操作ができるように、直動電磁コイルを内蔵している。この直動電磁コイルは構造が単純で作動が確実性に富んでいる。また、コンピュータ信号による制御にも適用できる操作機構として、サージ電圧防止機構付きのコイル、あるいは低消費電力型のコイルを内蔵したものなどがある。 When the operation rod 3i is an electromagnetic type, a linear motion electromagnetic coil is incorporated at the other end of the longitudinal rod 3n so that the valve can be switched by an electric signal from an electric circuit. This direct acting electromagnetic coil has a simple structure and is reliable in operation. Further, as an operation mechanism that can be applied to control by a computer signal, there are a coil with a surge voltage prevention mechanism or a built-in low power consumption type coil.
すなわち、方向制御弁3は、灌漑用水などへの供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水などに適時供給することができる。而も、操作稈3iの手順を下げる又は上げるに単純化したことにより、弁座3e及び他の弁座3fの何れか一方の開弁を順序に従って実施することができる。 That is, the direction control valve 3 can drain the amount of water introduced into the water storage means 4 to the low water surface side by time while preventing supply to irrigation water or the like. Alternatively, the sedated water stored in the water storage means 4 can be supplied to irrigation water and the like in a timely manner while preventing drainage to the low water surface side. However, by simplifying the procedure of the operating rod 3i to be lowered or raised, it is possible to open one of the valve seat 3e and the other valve seat 3f in order.
以下、上記構成の動作を説明する。すなわち、高潮や洪水側の水量のサイホン導入によって、貯水手段4を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げすることができる。 The operation of the above configuration will be described below. That is, by introducing siphons of storm surge and flood-side water volume, the volume and weight of the raising means 5 are increased through the water storage means 4 so that the top of the dike is raised to a predetermined height in response to sudden water increase. can do.
また、方向制御弁3は、灌漑用水などへの供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水などに適時供給することができる。 Further, the direction control valve 3 can drain the amount of water introduced into the water storage means 4 to the low water surface side by time while preventing supply to irrigation water or the like. Alternatively, the sedated water stored in the water storage means 4 can be supplied to irrigation water and the like in a timely manner while preventing drainage to the low water surface side.
而も、方向制御弁3は、操作稈3iの手順を下げる又は上げるに単純化したことにより、弁座3e及び他の弁座3fの何れか一方の開弁を順序に従って実施することができる。 However, the direction control valve 3 is simplified to lower or raise the procedure of the operating rod 3i, so that one of the valve seat 3e and the other valve seat 3f can be opened in order.
1……堤防嵩上げ装置
2……導入孔
2a…導入孔の先端
2b…導入孔の端末
2c…金網
2d…固定バンド
2e…導入孔の内周面
3……方向制御弁
3a…延長管
3b…延長管の内面
3c…接続バンド
3d…テーパ壁
3e、3f…導入側、供給側弁座
3g…復帰バネ手段
3h…供給管
3i…操作稈
3j…横方向ロッド
3k…支承ロッド
3m…斜方向ロッド
3n…縦方向ロッド
3p…斜吊りロッド
3q…棒レバー
3r…右下−45°片割り歯車
3s…右上45°片割り歯車
3t、3u…支承孔
3v…支持ピン
3w、3x…留リング
4……貯水手段
4a…連結金具
4b…ファスナー
4c…耳シート
4d…渡し綱
4e…台座
4f…留め具
5……嵩上げ手段
5a…連通金具
5b…リリーフ弁
5c…曳き綱
5d…ブロック
5e…吊下げ具
X……導入孔の延長方向
DESCRIPTION OF SYMBOLS 1 ... Levee raising apparatus 2 ... Introduction hole 2a ... Introduction hole tip 2b ... Introduction hole terminal 2c ... Metal mesh 2d ... Fixed band 2e ... Inner peripheral surface 3 ... Direction control valve 3a ... Extension pipe 3b ... The inner surface 3c of the extension tube ... the connection band 3d ... the taper wall 3e, 3f ... the introduction side, supply side valve seat 3g ... the return spring means 3h ... the supply tube 3i ... the operating rod 3j ... the lateral rod 3k ... the bearing rod 3m ... the oblique rod 3n ... Vertical rod 3p ... Oblique rod 3q ... Bar lever 3r ... Lower right -45 ° piece gear 3s ... Upper right 45 ° piece gear 3t, 3u ... Bearing hole 3v ... Support pin 3w, 3x ... Retaining ring 4 ... ... Water storage means 4a ... Connecting metal fitting 4b ... Fastener 4c ... Ear sheet 4d ... Transfer rope 4e ... Base 4f ... Fastening means 5 ... Raising means 5a ... Communication metal fitting 5b ... Relief valve 5c ... Rope rope 5d ... Block 5e ... Hanging tool X: How to extend the introduction hole For
本発明は、これまでの構成が有していた問題を解決しようとするものであり、洪水対策としての従来からの麻袋等の丈夫な袋に土砂などを入れた土嚢を積み上げる工法は、作業自体に危険が孕んでいるという問題を含んでいた。そこで、高潮や洪水側の水量のサイホン導入によって、貯水手段又は導入孔を通して嵩上げ手段の体積と重量の増大を図ることにより、危険域に出向くことなく堤防の天端を所定の高さに嵩上げする堤防嵩上げ装置の実現を目的としている。 The present invention intends to solve the problems of the conventional configuration, and the construction method of stacking sandbags containing earth and sand in a strong bag such as a traditional hemp bag as a flood countermeasure is the work itself Included the problem of danger. Therefore, by introducing siphons for the amount of water on the storm surge and flood side, the volume and weight of the raising means are increased through the water storage means or the introduction hole , so that the top of the dike is raised to a predetermined height without going to the danger area. The purpose is to realize a dike raising device.
また、貯水手段に導入した水量を灌漑用水への供給を阻止して低水面側に時間差排水することにより、下流域の破堤を抑える他、鎮静化した貯水を低水面側への排水を阻止して域内の灌漑用水に供給することにより、渇水対策や防火用に水利することができる。 In addition, the amount of water introduced into the water storage means is prevented from being supplied to the irrigation water and drained to the low water surface side by time, thereby preventing the bank breakage in the downstream area and preventing the drainage of the sedated water to the low water surface side. and by supplying the region of irrigation water, it is possible to water conservancy for drought measures and fire prevention.
そして、本発明は上記目的を達成するために堤防の内側法面から外側法面に向けて貫通する導入孔を形成し、導入孔と連通して外側法面に接触する面が平面となった袋状の貯水手段及び導入孔の何れか一方のみと連通する堤防の天端に据付ける面が平面となった横長袋状の嵩上げ手段を設け、嵩上げ手段の天端には内部圧力を設定値以上に上昇するのを避けるとともに、設定圧力に保持するリリーフ弁を備え、貯水手段又は導入孔を通して嵩上げ手段の体積と重量の増大を図る堤防嵩上げ装置を提供する。 In order to achieve the above object, the present invention forms an introduction hole that penetrates from the inner slope to the outer slope of the levee, and the surface that communicates with the introduction hole and contacts the outer slope is flat. A horizontally long bag-like raising means with a flat surface installed at the top of the dike communicating with only one of the bag-like water storage means and the introduction hole is provided, and the internal pressure is set at the ceiling of the raising means. There is provided an embankment raising device which is provided with a relief valve which is kept at a set pressure while avoiding the above rise and which increases the volume and weight of the raising means through a water storage means or an introduction hole .
また、第2の課題解決手段は、貯水手段が、導入した水量を灌漑用水への供給を阻止して低水面側に時間差排水する他、鎮静化した貯水を低水面側への排水を阻止して灌漑用水に供給する方向制御弁を設けている。 The second problem solving means is that the water storage means prevents the supply of the introduced water to the irrigation water and drains it to the low water surface side by time, and also prevents the sedated water from draining to the low water surface side. A directional control valve is provided to supply irrigation water.
第3の課題解決手段は、方向制御弁が、導入孔と連通する接続部に短尺筒形の延長管を介設し、延長管の一端側には導入孔の延長方向に向かって縮小する板状のテーパ壁を接合且つテーパ壁の末広端側を導入孔の端末に挿入するとともに、テーパ壁の縮小端が向かい合う空間において延長管を貫通して突出る横から見て逆Lの字形をした円筒状の供給管を設け、上記の向かい合う空間に復帰バネ手段を内装し、復帰バネ手段の両端に接続してテーパ壁の縮小端及び供給管の管口を閉塞する片面が外側にそれぞれ膨らむ球面形をした板状の弁座及び他の弁座を内蔵し、弁座及び他の弁座の何れか一方の開弁を順次する連結式の操作稈を備えている。 The third problem-solving means is a plate in which the direction control valve is provided with a short cylindrical extension pipe at a connection portion communicating with the introduction hole, and is reduced toward the extension direction of the introduction hole on one end side of the extension pipe. The tapered wall is joined and the end of the tapered wall at the end of the tapered wall is inserted into the end of the introduction hole. In the space where the tapered ends of the tapered wall face each other, the taper wall has an inverted L shape as viewed from the side protruding through the extension tube. A spherical supply pipe is provided, a return spring means is provided in the above-mentioned facing space, and a spherical surface in which one side of the reduced wall end of the taper wall and the inlet of the supply pipe is inflated outwardly by connecting to both ends of the return spring means. A plate-shaped valve seat and other valve seats having a shape are incorporated, and a connection type operating rod for sequentially opening one of the valve seat and the other valve seat is provided.
上記第1の課題解決手段による作用は次の通りである。すなわち、高潮や洪水側の水量のサイホン導入によって、貯水手段又は導入孔を通して嵩上げ手段の体積と重量の増大を図ることにより、危険域に出向くことなく堤防の天端を所定の高さに嵩上げすることができる。 The operation of the first problem solving means is as follows. That is, by introducing siphons of storm surges and flood-side water volume, the volume and weight of the raising means are increased through the water storage means or the introduction hole , so that the top of the dike is raised to a predetermined height without going to the danger area. be able to.
また、第2の課題解決手段による作用は、方向制御弁が、灌漑用水への供給を阻止しつつ、貯水手段に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段の鎮静化した貯水を灌漑用水に供給することができる。 In addition, the action of the second problem solving means is that the directional control valve can drain the amount of water introduced into the water storage means to the low water surface side by time while preventing the supply to the irrigation water. Or, while preventing drainage of the low water side, the water which subsided reservoir means can be supplied to the irrigation water.
また、方向制御弁は、貯水手段に導入した水量を低水面側に時間差排水することができるため、下流域の破堤を抑えるものである。又は、貯水手段の鎮静化した貯水を灌漑用水に供給することができるため、渇水対策や防火用に水利する効果を発揮するものである。 In addition, the direction control valve can discharge the amount of water introduced into the water storage means to the low water surface side with a time difference, and thus suppresses the bank breakage in the downstream area. Alternatively, since the water stored in the water storage means can be supplied to the irrigation water , the water can be used for drought countermeasures and fire prevention.
図1においては、1は堤防嵩上げ装置で、特許請求の範囲に記載されたように「堤防の内側法面から外側法面に向けて貫通する導入孔2を形成し、導入孔2と連通して外側法面に接触する面が平面となった袋状の貯水手段4及び導入孔2の何れか一方のみと連通する堤防の天端に据付ける面が平面となった横長袋状の嵩上げ手段5を設け、嵩上げ手段5の天端には内部圧力を設定値以上に上昇するのを避けるとともに、設定圧力に保持するリリーフ弁5bを備え、貯水手段4又は導入孔2を通して嵩上げ手段5の体積と重量の増大を図る」ことができる。 In FIG. 1, reference numeral 1 denotes an embankment raising device, as described in the claims, “forms an introduction hole 2 penetrating from an inner slope of an embankment toward an outer slope, and communicates with the introduction hole 2. A horizontally long bag-shaped raising means in which the surface to be installed at the top of the dike communicating with only one of the bag-shaped water storage means 4 and the introduction hole 2 whose surface contacting the outer slope is flat 5 is provided at the top end of the raising means 5 with a relief valve 5b that keeps the internal pressure from rising to a set value or higher, and the volume of the raising means 5 through the water storage means 4 or the introduction hole 2 is provided. And increase the weight. "
上記の堤防嵩上げ装置1は、高潮や洪水側の水量のサイホン導入によって、貯水手段4又は導入孔2を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げしようとするものである。 The above-mentioned levee raising device 1 increases the volume and weight of the raising means 5 through the water storage means 4 or the introduction hole 2 by introducing a siphon of the water amount on the storm surge or the flood side, so that the dyke can cope with sudden water increase. It is intended to raise the top of the to a predetermined height.
すなわち、堤防嵩上げ装置1は、高潮や洪水側の水量のサイホン導入によって、貯水手段4又は導入孔2を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げすることができる。 That is, the levee raising device 1 increases the volume and weight of the raising means 5 through the water storage means 4 or the introduction hole 2 by introducing a siphon of the amount of water on the storm surge or the flood side, so that the dyke can cope with sudden water increase. The top end of the can be raised to a predetermined height.
図3、4,5においては、3は方向制御弁で、特許請求の範囲に記載されたように「貯水手段4が、導入した水量を灌漑用水への供給を阻止して低水面側に時間差排水する他、鎮静化した貯水を低水面側への排水を阻止して灌漑用水に供給する方向制御弁3…一部省略…は、導入孔2と連通する接続部に短尺筒形の延長管3aを介設し、延長管3aの一端側には導入孔2の延長方向Xに向かって縮小する板状のテーパ壁3dを接合且つテーパ壁3dの末広端側を導入孔2の端末2bに挿入するとともに、テーパ壁3dの縮小端が向かい合う空間において延長管3aを貫通して突出る横から見て逆Lの字形をした円筒状の供給管3hを設け、上記の向かい合う空間に復帰バネ手段3gを内装し、復帰バネ手段3gの両端に接続してテーパ壁3dの縮小端及び供給管3hの管口を閉塞する片面が外側にそれぞれ膨らむ球面形をした板状の弁座3e及び他の弁座3fを内蔵し、弁座3e及び他の弁座3fの何れか一方の開弁を順次する連結式の操作稈3iを備え」ている。 3, 4, and 5, 3 is a directional control valve. As described in the claims, “the water storage means 4 prevents the supply of the introduced water to the irrigation water and causes a time difference on the low water surface side. In addition to draining , the directional control valve 3 for supplying the irrigation water to the irrigation water while preventing the drained water from being sedated to the low water surface side is partly omitted. 3a is interposed, and a plate-like taper wall 3d that shrinks in the extension direction X of the introduction hole 2 is joined to one end side of the extension pipe 3a, and the wide end side of the taper wall 3d is connected to the terminal 2b of the introduction hole 2 A cylindrical supply pipe 3h having an inverted L shape as viewed from the side protruding through the extension pipe 3a is provided in the space where the reduced end of the taper wall 3d faces, and a return spring means is provided in the opposite space. 3g is installed and connected to both ends of the return spring means 3g to connect the tapered wall 3d. Any reduction end and one side for closing the tube opening incorporates a plate-shaped valve seat 3e and other valve seat 3f in which the inflated spherical shape respectively on the outside of the feed pipe 3h, the valve seat 3e and other valve seat 3f It has a connected operation rod 3i that sequentially opens one of the valves.
上記の方向制御弁3は、灌漑用水への供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水しようとするものである。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水に供給しようとするものである。而も、操作稈3iの手順を下げる又は上げるに単純化することで、弁座3e及び他の弁座3fの何れか一方の開弁を順序に従って実施しようとするものである。 The directional control valve 3 is intended to drain the amount of water introduced into the water storage means 4 to the low water surface side by time while preventing supply to the irrigation water. Or, while preventing drainage of the low water side, the water which subsided reservoir means 4 is to be supplied to the irrigation water. However, by simplifying the procedure of the operating rod 3i to be lowered or raised, one of the valve seat 3e and the other valve seat 3f is opened in order.
上記の供給管3hは、延長管3aと一体成形しており、延長管3aを貫通して下方に突出る横から見て逆Lの字形をした円筒状に形成している。この供給管3hの管端が以下図示省略の堤防の外側法面に埋設したU字溝の上方部に向かうことにより、鎮静化した貯水がU字溝を通って接続した灌漑用水路に供給される。尚、U字溝に替えてポリエチレン製管路を敷設してもよい。 The supply pipe 3h is integrally formed with the extension pipe 3a, and is formed in a cylindrical shape having an inverted L shape when viewed from the side penetrating the extension pipe 3a and projecting downward. By the pipe end of the supply pipe 3h it is directed toward the upper portion of the U-shaped groove buried in the outer slopes of the embankment not shown below, the water which subsided is supplied in irrigation water path connected through a U-shaped groove The In addition, it may replace with a U-shaped groove and may lay polyethylene pipes.
上記の復帰バネ手段3gは、一本のばね鋼をらせん形に巻いたコイル状に形成しており、テーパ壁3dの縮小端と供給管3hの管口とが向かい合う空間に介装している。この復帰バネ手段3gが有する適度のばね機能の効力により、常に元の位置に戻る復帰力を有していることから、復帰バネ手段3gの両端に片面が外側にそれぞれ膨らむ球面形をした板状の弁座3e及び他の弁座3fが接続する。これにより、弁座3e及び他の弁座3fには復帰バネ手段3gへの初期圧縮時に生じる反発力が与えられている。 The return spring means 3g is formed in a coil shape in which a single spring steel is spirally wound, and is interposed in a space where the reduced end of the tapered wall 3d and the tube opening of the supply pipe 3h face each other. . The return spring means 3g has a return force that always returns to its original position due to the effect of an appropriate spring function, so that a plate-like plate shape in which one side swells outward at both ends of the return spring means 3g. The valve seat 3e and the other valve seat 3f are connected. Thereby, a repulsive force generated at the time of initial compression to the return spring means 3g is given to the valve seat 3e and the other valve seat 3f.
図5においては、3eは導入孔2側の弁座で、3fは供給管3h側の他の弁座であって、鋳物又は強化プラスチック成形体から形成している。この弁座3e及び他の弁座3fはテーパ壁3dの縮小端と供給管3hの管口に密着するとともに、弁座3e及び他の弁座3fの内側面同士に復帰バネ手段3gの両端が接続することにより、弁座3eがテーパ壁3dの縮小端と他の弁座3fが供給管3hの管口を閉塞している。 In FIG. 5, 3e is a valve seat on the introduction hole 2 side, 3f is another valve seat on the supply pipe 3h side, and is formed from a cast or reinforced plastic molded body. The valve seat 3e and the other valve seat 3f are in close contact with the reduced end of the tapered wall 3d and the inlet of the supply pipe 3h, and both ends of the return spring means 3g are connected to the inner side surfaces of the valve seat 3e and the other valve seat 3f. By connecting, the valve seat 3e closes the reduced end of the tapered wall 3d and the other valve seat 3f closes the port of the supply pipe 3h.
上記の弁座3e、3fを説明すると、通常時は、弁座3eと他の弁座3fがテーパ壁3dの縮小端と供給管3hの管口を閉塞させる。豪雨発生期は、テーパ壁3dの縮小端を閉塞していた弁座3eを開弁させる。灌漑用水への供給時は、供給管3hの管口を閉塞していた他の弁座3fを開弁させる、作用が生じることから、順序に従って弁座3eと他の弁座3fを操作することができる連結式の操作稈3iを備えている。 The above-described valve seats 3e and 3f will be described. Normally, the valve seat 3e and the other valve seat 3f block the reduced end of the tapered wall 3d and the inlet of the supply pipe 3h. During the heavy rain occurrence period, the valve seat 3e that has closed the reduced end of the tapered wall 3d is opened. When supplying to the irrigation water , the valve seat 3e and the other valve seat 3f are operated according to the order because the valve seat 3f that has closed the pipe port of the supply pipe 3h is opened. It is provided with a connection type operating rod 3i that can be used.
図5においては、3iは操作稈で、一端が弁座3e及び他の弁座3fの中心部に狭隘に挿通し且つ所定位置内に収める横方向ロッド3jを設け、横方向ロッド3jの他端が、供給管3hの曲がり部に斜め通しした斜方向ロッド3mの一端と歯合可能に連結し、斜方向ロッド3mの中間点が、支承ロッド3kの一端と回動可能に連結し、支承ロッド3kの他端が、供給管3hの曲がり最遠端部と回動可能に固定し、斜方向ロッド3mの他端が、縦方向ロッド3nの一端と回動可能に連結し、Uの字状に曲げた縦方向ロッド3nの他端が、斜吊りロッド3pの一端と回動可能に連結し、斜吊りロッド3pの他端が、棒レバー3qの中間点と梃子利用可能に連結し、棒レバー3qの一端が、供給管3hの外周壁と回動可能に固定している。 In FIG. 5, reference numeral 3i denotes an operating rod, one end of which is provided in the center of the valve seat 3e and the other valve seat 3f in a narrow manner and is provided with a lateral rod 3j that fits within a predetermined position, and the other end of the lateral rod 3j. Is connected to one end of the oblique rod 3m obliquely passed through the bent portion of the supply pipe 3h, and an intermediate point of the oblique rod 3m is rotatably connected to one end of the support rod 3k. The other end of 3k is rotatably fixed to the bent farthest end portion of the supply pipe 3h, and the other end of the oblique rod 3m is rotatably connected to one end of the longitudinal rod 3n. The other end of the longitudinal rod 3n bent in the direction is pivotably connected to one end of the slanting rod 3p, and the other end of the slanting rod 3p is coupled to the intermediate point of the bar lever 3q so that the lever can be used. One end of the lever 3q is rotatably fixed to the outer peripheral wall of the supply pipe 3h.
上述した操作稈3iの手順を説明すると、平時は、棒レバー3qを水平位置にすることで、フリー状態に置かれた弁座3e及び他の弁座3fはテーパ壁3dの縮小端と供給管3hの管口を閉塞して小動物などの浸入を防ぐ。洪水発生時は、棒レバー3qを下げ位置に梃子利用することで、貯水手段4側にスライドした横方向ロッド3jはテーパ壁3dの縮小端を閉塞していた弁座3eを引戻して開弁する。すると、開弁した隙間を通して洪水側の水量をサイホン導入する他、導入した水量を灌漑用水への供給を阻止して低水面側に時間差排水を行うことができる。 The procedure of the operation rod 3i described above will be described. During normal times, the valve lever 3q and the other valve seat 3f placed in the free state are placed in the horizontal position by moving the bar lever 3q to the reduced end of the tapered wall 3d and the supply pipe. Close the 3h tube opening to prevent entry of small animals. At the time of flooding, the lever rod 3q is leveraged to the lowered position so that the lateral rod 3j slid to the water storage means 4 side opens the valve seat 3e that has closed the reduced end of the tapered wall 3d. . Then, in addition to siphoning the amount of water on the flood side through the opened gap, it is possible to prevent the supply of the introduced amount of water to the irrigation water and perform time-lag drainage on the low water surface side.
すなわち、方向制御弁3は、灌漑用水への供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水に供給することができる。而も、操作稈3iの手順を下げる又は上げるに単純化したことにより、弁座3e及び他の弁座3fの何れか一方の開弁を順序に従って実施することができる。 That is, the direction control valve 3 can drain the amount of water introduced into the water storage means 4 to the low water surface side by time while preventing supply to the irrigation water. Or, while preventing drainage of the low water side, the water which subsided reservoir means 4 can be supplied to the irrigation water. However, by simplifying the procedure of the operating rod 3i to be lowered or raised, it is possible to open one of the valve seat 3e and the other valve seat 3f in order.
以下、上記構成の動作を説明する。すなわち、高潮や洪水側の水量のサイホン導入によって、貯水手段4又は導入孔2を通して嵩上げ手段5の体積と重量の増大を図ることにより、急激な増水にも対応して堤防の天端を所定の高さに嵩上げすることができる。 The operation of the above configuration will be described below. That is, by introducing a siphon of the amount of water on the storm surge or the flood side, the volume and weight of the raising means 5 are increased through the water storage means 4 or the introduction hole 2 , so that the top of the levee can be set in a predetermined manner in response to sudden water increase. Can be raised to height.
また、方向制御弁3は、灌漑用水への供給を阻止しつつ、貯水手段4に導入した水量を低水面側に時間差排水することができる。又は、低水面側への排水を阻止しつつ、貯水手段4の鎮静化した貯水を灌漑用水に供給することができる。 Further, the direction control valve 3 can drain the amount of water introduced into the water storage means 4 to the low water surface side by time while preventing the supply to the irrigation water. Or, while preventing drainage of the low water side, the water which subsided reservoir means 4 can be supplied to the irrigation water.
Claims (3)
The directional control valve has a plate-shaped taper wall that is provided with a short cylindrical extension pipe in a connection portion that communicates with the introduction hole, and that is reduced toward the extension direction of the introduction hole on one end side of the extension pipe. And the end of the tapered wall at the end of the tapered wall is inserted into the end of the introduction hole, and the tapered wall has an inverted L shape when viewed from the side protruding through the extension tube in the space where the reduced end of the tapered wall faces. A cylindrical supply pipe is provided, and a return spring means is provided in the above-described space, and one side that closes the reduced end of the tapered wall and the inlet of the supply pipe is connected to both ends of the return spring means. 3. A spherically shaped plate-shaped valve seat that swells, and a connecting type operating rod that sequentially opens one of the valve seat and the other valve seat. Levee raising device as described.
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JP2006144294A (en) * | 2004-11-17 | 2006-06-08 | Shunichi Oda | Floating dam body sheet |
JP2006161364A (en) * | 2004-12-06 | 2006-06-22 | Ohbayashi Corp | Bank breakage protecting structure, bank breakage protecting sheet, and method of laying the same |
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JP2006144294A (en) * | 2004-11-17 | 2006-06-08 | Shunichi Oda | Floating dam body sheet |
JP2006161364A (en) * | 2004-12-06 | 2006-06-22 | Ohbayashi Corp | Bank breakage protecting structure, bank breakage protecting sheet, and method of laying the same |
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