JPH05285470A - Water purifying device in intake port of concrete dam - Google Patents
Water purifying device in intake port of concrete damInfo
- Publication number
- JPH05285470A JPH05285470A JP11539392A JP11539392A JPH05285470A JP H05285470 A JPH05285470 A JP H05285470A JP 11539392 A JP11539392 A JP 11539392A JP 11539392 A JP11539392 A JP 11539392A JP H05285470 A JPH05285470 A JP H05285470A
- Authority
- JP
- Japan
- Prior art keywords
- water
- plate
- concrete dam
- cylindrical body
- intake
- 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.)
- Granted
Links
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- Barrages (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
【産業上の利用分野】本発明は、水源貯水池、水源渓流
の取水施設等に流入する濁水、汚水等を濾過して水質を
浄化するためのコンクリートダム取水口に於ける水質浄
化装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purification apparatus at a concrete dam intake for purifying water quality by filtering muddy water, sewage and the like flowing into a water source reservoir, a water source stream intake facility and the like.
【従来の技術】従来より上流河川では、土砂で汚れた泥
水を、礫や砂を充填した袋状物を通過させて河川の濁り
を除去するための堰堤が提案されている。先行技術文献
として、特開平３−７２１０６号公報「河川の一河岸寄
りを清流化する方法」、特開平３−３３３１３号公報
「河水に含まれる土粒子のフィルター方法」がある。と
ころが、最近では河川の上流、特に渓流でも夏場などキ
ャップにより生活排水が流れ込むようになって、汚染が
生じている。その下流に水源貯水池や取水施設が設けら
れている場合は問題が大きい。上記のように上流河川で
は、泥などによる濁りを除去する方法は提案されている
が、所謂生活排水を浄化する技術で有効なものは存在し
なかった。これは河川上流が、水の流れが急であるこ
と、及び石や土砂がさらに上流から運ばれてくるため、
浄化設備が埋没し、これによる浄化が不可能となるから
である。2. Description of the Related Art Conventionally, in upstream rivers, a dam has been proposed for removing muddy water soiled with earth and sand by passing through a bag-like material filled with gravel or sand to remove the turbidity of the river. As prior art documents, there are Japanese Patent Application Laid-Open No. 3-72106, "Method for clearing a river near the river bank", and Japanese Patent Application Laid-Open No. 3-33313, "Method for filtering soil particles contained in river water". However, recently, domestic effluent is flowing into the upper reaches of rivers, especially in mountain streams, due to caps in summer, causing pollution. This is a big problem when there is a water source reservoir or intake facility downstream of it. As described above, in upstream rivers, a method for removing turbidity due to mud and the like has been proposed, but there is no effective technology for purifying so-called domestic wastewater. This is because the upstream of the river has a steep flow of water, and stones and earth are carried further upstream,
This is because the purification equipment is buried and purification by this becomes impossible.
【発明が解決しようとする課題】そこで本発明は、水源
貯水池や水源渓流の取水施設等に流入する濁水、汚水を
その上流に設けられたコンクリートダムの取水口入口で
浄化するようにした水質浄化装置を提供しようとするも
のである。SUMMARY OF THE INVENTION Therefore, the present invention is a water purification system in which turbid water and sewage flowing into a water source reservoir, a water source stream intake facility, etc. are purified at an intake inlet of a concrete dam provided upstream thereof. It is intended to provide a device.
【課題を解決するための手段】上記課題を解決するため
の本発明のコンクリートダム取水口に於ける水質浄化装
置は、上流側のコンクリートダム取水口を囲んで、水を
通し、石を通さない孔あき板又は鉄筋網若しくはルーバ
ーのケーシングからなる側板と天板と底板とにより構成
された透水性筒体を配設固定し、この透水性筒体の少な
くとも内面に活性炭又は木炭を収納すると共に、透水性
筒体の外側周囲に多数の石を配設したことを特徴とする
ものである。上記の孔あき板のケーシングの側板は、波
形板からなり、該波形板の河川の水流に向って上向きと
なる傾斜面に、多数の水抜き孔を穿設したものが好適で
ある。A water purification device for a concrete dam intake according to the present invention for solving the above-mentioned problems encloses an upstream concrete dam intake and allows water to pass therethrough and does not allow stones to pass therethrough. A water-permeable cylinder constituted by a side plate and a top plate and a bottom plate consisting of a perforated plate or a casing of a reinforced net or a louver is disposed and fixed, and at least the activated carbon or charcoal is stored on the inner surface of the water-permeable cylinder, A large number of stones are arranged around the outer periphery of the water-permeable cylinder. It is preferable that the side plate of the casing of the perforated plate is a corrugated plate, and a large number of water drain holes are formed on an inclined surface of the corrugated plate that faces upward toward the river water flow.
【作用】上記のように構成された本発明のコンクリート
ダム取水口に於ける水質浄化装置によれば、コンクリー
トダムの上流側に流れてきた水は透水性筒体の外側周囲
に配した石の中に浸透し、土砂や泥分は石に遮られて侵
入しにくく、一部石の中に入っても途中で詰まり、透水
性筒体までは到達しない。そして石の中に浸透した水は
透水性筒体に到達し、孔あき板又は鉄筋網若しくはルー
バーのケーシングの側板を通って透水性筒体の内部に流
入する。この透水性筒体の内部に流入した水は、透水性
筒体の少くとも内面に収納された活性炭又は木炭を透過
し、水に含まれている有機成分が活性炭又は木炭に吸着
される。こうして有機成分が除かれて浄化された水は、
透水性筒体内からコンクリートダムの取水口を通って下
流に流出する。また透水性筒体内の活性炭又は木炭は土
砂や泥分で埋没することがないので、有効使用でき、さ
らに透水性筒体の外側周囲に多数配設された石は河川の
水を浸透させることができ、コンクリートダムの天端の
排水口からは河川の水が流出することがない。従って、
長期間上流河川の濁水や汚水を浄化できる。According to the water purification apparatus at the concrete dam intake of the present invention configured as described above, the water flowing to the upstream side of the concrete dam can be removed by the stones arranged around the outside of the water permeable cylinder. It penetrates into the inside and the soil and mud are blocked by stones so that it is difficult for them to enter. Even if some of the stones go into the stones, they are blocked on the way and do not reach the water-permeable cylinder. Then, the water that has penetrated into the stone reaches the water permeable cylinder and flows into the water permeable cylinder through the perforated plate or the side plate of the rebar net or the casing of the louver. The water flowing into the water permeable cylinder permeates the activated carbon or charcoal contained in at least the inner surface of the water permeable cylinder, and the organic component contained in the water is adsorbed by the activated carbon or charcoal. Water purified by removing organic components in this way
It flows out from the permeable cylinder to the downstream through the intake of the concrete dam. In addition, activated carbon or charcoal in the permeable cylinder can be effectively used because it will not be buried in soil and mud, and many stones arranged around the outside of the permeable cylinder can permeate river water. It is possible, and the river water does not flow out from the drainage port at the top of the concrete dam. Therefore,
It can purify muddy water and sewage from upstream rivers for a long time.
【実施例】本発明のコンクリートダム取水口に於ける水
質浄化装置の一実施例を説明すると、図１，２に示すコ
ンクリートダム１に形成された取水口２の上流側に、該
取水口２を囲んで、上下方向に波目を有する波形板３を
左右方向に円弧状に弯曲させたセグメント４を左右方向
及び上下方向に接続してアーチ型になし、周囲にアング
ル材５を取付けてなる側板６が配置され、この側板６の
波形板３の水の流れに向って上向きとなる傾斜面７に、
円形の水抜き孔８が側板６全体として千鳥配列に多数穿
設されている。そしてアーチ型の側板６の上端及び下端
に、夫々１／４円形の平板９の周囲にアングル枠１０を
取付けてなる天板１１、底板１２が二枚づつ突き合わさ
れて透水性半円筒体１３が構成され、この透水性半円筒
体１３のアーチ型の側板６の内周側に、図２に示すよう
にエキスパンドメタル１４をアーチ型になし、その周囲
にアングル材１５を取付けてなる内側板１６が、一定間
隔を存して同心に配設固定され、この内側板１６と前記
側板６との間の空間に活性炭１７が収納されている。透
水性半円筒体１３の外側周囲には、多数の石１８を配設
して透水性半円筒体１３を被っている。尚、上記アーチ
型の側板６は鉄筋網で構成しても良い。このように構成
された水質浄化装置１９によると、コンクリートダム１
の上流側に流れてきた水は、透水性半円筒体１３の外側
周囲に配設した石１８の中に浸透し、土砂や泥分は石１
８に遮られて侵入しにくく、一部石１８の中に入っても
途中で詰まり、透水性半円筒体１３までは到達しない。
そして石１８の中に浸透した水は透水性半円筒体１３に
到達し、波形板３よりなるアーチ型の側板６の水抜き孔
８を通って透水性半円筒体１３の内部に流入する。この
透水性半円筒体１３の内部に流入した水は、透水性半円
筒体１３のアーチ型の側板６とその内周側に一定間隔を
存して同心に配設固定したアーチ型の内側板１６との空
間に収納された活性炭１７を透過し、水に含まれている
有機成分が活性炭１７に吸着される。こうして有機成分
が除かれて浄化された水は、透水性半円筒体１３内から
コンクリートダム１の取水口２を通って下流に流出す
る。次に本発明のコンクリートダム取水口に於ける水質
浄化装置の他の実施例を説明すると、図３に示すように
コンクリートダム１に形成された取水口２の上流側に、
該取水口２を囲んで上流から下流にかけて上向きとなる
多数の傾斜板２３を平行に且つ上側の傾斜板２３の下端
が下側の傾斜板２３の上端と同高となるようにケーシン
グ２４に備えて、傾斜板２３間に水抜き開口２５（図４
参照）を上流から下流に向って上向きに形成してルーバ
ーを構成し、このルーバー全体を左右方向に円弧状に弯
曲させたセグメント２６を左右方向及び上下方向に接続
してアーチ型にした側板２７が配置され、このアーチ型
の側板２７の上端及び下端に、夫々１／４円形の平板９
の周囲にアングル枠１０を取付けてなる天板１１、底板
１２が二枚づつ突き合わされて透水性半円筒体１３′が
構成され、この透水性半円筒体１３′内に、図４に示す
ように取水口２の入口にエキスパンドメタル２８を配し
た上、木炭２９が収納されている。透水性半円筒体１
３′の外側周囲には、多数の石１８を配設して透水性半
円筒体１３′を被っている。このように構成された水質
浄化装置１９′によると、コンクリートダム１の上流側
に流れてきた水は、透水性半円筒体１３′の外側周囲に
配設した石１８の中に浸透し、土砂や泥分は石１８に遮
られて侵入しにくく、一部石１８の中に入っても途中で
詰まり、透水性半円筒体１３′までは到達しない。そし
て石１８の中に浸透した水は透水性半円筒体１３′に到
達し、ルーバーよりなるアーチ型の側板２７の傾斜板２
３間の水抜き開口２５を通って透水性半円筒体１３′の
内部に流入する。この透水性半円筒体１３′の内部に流
入した水は、透水性半円筒体１３′内に収納された木炭
２９を透過し、水に含まれている有機成分が木炭２９に
吸着される。こうして有機成分が除かれて浄化された水
は、透水性半円筒体１３′内からコンクリートダム１の
取水口２を通って下流に流出する。尚、上記２つの実施
例の水質浄化装置１９，１９′は、アーチ型の側板６，
２７に天板１１、底板１２を組付けて透水性半円筒体１
３，１３′を構成しているが、側板６，２７はアーチ型
に限るものではなく、コンクリートダム１の上流側で取
水口２を囲むことができればどのような形状でも良い。
また上記２つの実施例の水質浄化装置１９，１９′の透
水性半円筒体１３，１３′の天板１１、底板１２は平板
であるが、スリット板、多孔板、エキスパンドメタル等
と金網を組み合わせたものでも良い。要は水のみ透水性
筒体内に流入できればいかなるものでも良い。さらに上
記２つの実施例の水質浄化装置１９，１９′の透水性半
円筒体１３，１３′内に於けるエキスパンドメタルより
なるアーチ型の内側板１６と取水口２の入口のエキスパ
ンドメタル２８は、透水布、例えばジオテキスタイルに
代えても良いものである。EXAMPLE An example of the water purification device for a concrete dam intake of the present invention will be described. The intake 2 is located upstream of the intake 2 formed in the concrete dam 1 shown in FIGS. A segment 4 in which a corrugated plate 3 having a corrugation in the up and down direction is bent in a circular arc shape in the left and right direction is connected in the left and right direction and the up and down direction to form an arch shape, and an angle member 5 is attached to the periphery. The side plate 6 is arranged, and on the inclined surface 7 of the corrugated plate 3 of the side plate 6 which is directed upward toward the water flow,
A large number of circular drainage holes 8 are formed in a zigzag arrangement as the entire side plate 6. Then, two top plates 11 and two bottom plates 12 each having an angle frame 10 attached to the periphery of a quarter circular flat plate 9 are butted to the upper and lower ends of the arch-shaped side plate 6 to form a water-permeable semi-cylindrical body 13. As shown in FIG. 2, an expanded metal 14 is formed on the inner peripheral side of the arch-shaped side plate 6 of the water-permeable semi-cylindrical body 13, and an angle member 15 is attached to the inner plate 16 to surround the expanded metal 14. However, they are arranged and fixed concentrically with a certain interval, and the activated carbon 17 is housed in the space between the inner plate 16 and the side plate 6. A large number of stones 18 are arranged on the outer periphery of the water-permeable semi-cylindrical body 13 to cover the water-permeable semi-cylindrical body 13. The arch-shaped side plate 6 may be composed of a rebar net. According to the water purification device 19 configured in this way, the concrete dam 1
Of water flowing to the upstream side of the water penetrates into the stones 18 arranged around the outer periphery of the water-permeable semi-cylindrical body 13, and the sediment and mud are removed from the stones 1.
It is difficult to enter because it is blocked by 8, and even if it partially enters the stone 18, it is blocked on the way and does not reach the water-permeable semi-cylindrical body 13.
The water that has penetrated into the stone 18 reaches the water-permeable semi-cylindrical body 13 and flows into the water-permeable semi-cylindrical body 13 through the water drain holes 8 of the arch-shaped side plate 6 made of the corrugated plate 3. The water flowing into the water-permeable semi-cylindrical body 13 has an arch-shaped inner side plate 6 fixed to the arch-shaped side plate 6 of the water-permeable semi-cylindrical body 13 and the inner peripheral side thereof at a constant interval. The organic component contained in the water is adsorbed by the activated carbon 17 after passing through the activated carbon 17 stored in the space 16. The water thus purified by removing the organic components flows out from the water-permeable semi-cylindrical body 13 through the water intake port 2 of the concrete dam 1 to the downstream side. Next, another embodiment of the water purification device at the concrete dam intake of the present invention will be described. As shown in FIG. 3, on the upstream side of the intake 2 formed in the concrete dam 1,
The casing 24 is provided with a large number of inclined plates 23 that surround the intake 2 and face upward from upstream to downstream so that the lower end of the upper inclined plate 23 is at the same height as the upper end of the lower inclined plate 23. The drainage opening 25 between the inclined plates 23 (see FIG.
) Is formed upward from upstream to downstream to form a louver, and the segment 26 in which the entire louver is bent in an arc shape in the left-right direction is connected in the left-right direction and the up-down direction to form an arch-shaped side plate 27. Are disposed on the upper and lower ends of the arch-shaped side plate 27, and each of them is a quarter circular flat plate 9
A top plate 11 and a bottom plate 12 each having an angle frame 10 attached to the periphery of the two are abutted two by two to form a water-permeable semi-cylindrical body 13 '. As shown in FIG. An expanded metal 28 is arranged at the inlet of the intake port 2 and charcoal 29 is stored therein. Water-permeable semi-cylindrical body 1
A large number of stones 18 are arranged on the outer periphery of 3'to cover a water-permeable semi-cylindrical body 13 '. According to the water purification device 19 'configured in this way, the water flowing to the upstream side of the concrete dam 1 permeates into the stones 18 arranged around the outer periphery of the water permeable semi-cylindrical body 13', and the soil The dirt and mud are blocked by the stones 18 and are hard to enter, and even if some of them enter the stones 18, they are clogged on the way and do not reach the water-permeable semi-cylindrical body 13 '. The water that has penetrated into the stone 18 reaches the water-permeable semi-cylindrical body 13 ′, and the inclined plate 2 of the arch-shaped side plate 27 made of louvers.
It flows into the inside of the water-permeable semi-cylindrical body 13 ′ through the drainage opening 25 between the three. The water that has flowed into the water-permeable semi-cylindrical body 13 ′ passes through the charcoal 29 stored in the water-permeable semi-cylindrical body 13 ′, and the organic components contained in the water are adsorbed by the charcoal 29. The water thus purified by removing the organic components flows out from the inside of the water-permeable semi-cylindrical body 13 ′ to the downstream through the water intake 2 of the concrete dam 1. The water purification devices 19 and 19 ′ of the above-mentioned two embodiments are the arch-shaped side plates 6 and 6.
Assembling the top plate 11 and the bottom plate 12 to 27, the water-permeable semi-cylindrical body 1
The side plates 6 and 27 are not limited to the arch type, but may have any shape as long as they can surround the intake 2 on the upstream side of the concrete dam 1.
Although the top plate 11 and the bottom plate 12 of the water permeable semi-cylindrical bodies 13 and 13 'of the water purification devices 19 and 19' of the above two embodiments are flat plates, a slit plate, a perforated plate, an expanded metal or the like and a wire mesh are combined. It can be a stuff. The point is that any water may be used as long as it can flow into the water-permeable cylinder. Further, the arch-shaped inner plate 16 made of expanded metal and the expanded metal 28 at the inlet of the water intake 2 in the water permeable semi-cylindrical bodies 13 and 13 'of the water purification devices 19 and 19' of the two embodiments described above are It may be replaced with a water-permeable cloth, such as geotextile.
【発明の効果】以上の通り本発明によるコンクリートダ
ム取水口に於ける水質浄化装置によれば、コンクリート
ダムの上流側に流れた水が透水性筒体の外側周囲に配し
た石の中に浸透して透水性筒体に到達し、土砂や泥分は
石に遮られ、一部石の中に入っても途中で詰まり、透水
性筒体までは到達せず、透水性筒体に到達した水は、孔
あき板又は鉄筋網若しくはルーバーのケーシングの側板
を通って内部に流入し、少くとも内面に収納された活性
炭又は木炭を透過し、水に含まれている有機成分が活性
炭又は木炭に吸着される結果、透水性筒体内からコンク
リートダムの取水口を通って下流に流出する水は、有機
成分が除かれて浄化されたものとなる。また、透水性筒
体内の活性炭又は木炭は土砂や泥分で埋没することがな
いので、有効使用でき、さらに透水性筒体の外側周囲に
多数配設された石は、河川の水を浸透させることがで
き、コンクリートダムの天端の排水口から河川の水を流
出することがなく、従って、長期間上流河川の濁水や汚
水を浄化でき、下流の水源貯水池や水源渓流の取水施設
には、水質の浄化された渓流水を取水できる。As described above, according to the water purification device at the concrete dam intake according to the present invention, the water flowing upstream of the concrete dam permeates into the stones arranged around the outer side of the water permeable cylinder. Then, it reached the water permeable cylinder, the soil and mud was blocked by the stone, and even if it partially entered the stone, it was blocked on the way and reached the water permeable cylinder, not the water permeable cylinder. Water flows into the interior through the perforated plate or the side plate of the rebar net or louver casing, and at least permeates the activated carbon or charcoal stored on the inner surface, and the organic components contained in the water are converted into activated carbon or charcoal. As a result of being adsorbed, the water flowing out from the water permeable cylinder through the intake of the concrete dam to the downstream is purified by removing the organic components. In addition, activated carbon or charcoal in the water permeable cylinder does not bury itself in soil and mud, so it can be used effectively. Furthermore, a large number of stones arranged around the outside of the water permeable cylinder allow the water of the river to penetrate. Therefore, it is possible to purify turbid water and sewage of the upstream river for a long period of time without flowing out the river water from the drainage port at the top of the concrete dam, and to the downstream water source reservoir or water source mountain stream intake facility, It is possible to take in stream water that has been purified.
【図１】本発明によるコンクリートダム取水口に於ける
水質浄化装置の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a water purification device at a concrete dam intake according to the present invention.
【図２】図１の縦断面図である。FIG. 2 is a vertical sectional view of FIG.
【図３】本発明によるコンクリートダム取水口に於ける
水質浄化装置の他の実施例を示す斜視図である。FIG. 3 is a perspective view showing another embodiment of the water purification device at the concrete dam intake according to the present invention.
【図４】図３の縦断面図である。4 is a vertical cross-sectional view of FIG.
１ コンクリートダム ２ 取水口 ３ 波形板 ４ セグメント ５ アングル材 ６ 側板 ７ 傾斜面 ８ 水抜き孔 ９ 平板 １０ アングル枠 １１ 天板 １２ 底板 １３，１３′ 透水性半円筒体 １４ エキスパンドメタル １５ アングル材 １６ 内側板 １７ 活性炭 １８ 石 １９，１９′ 水質浄化装置 ２３ 傾斜板 ２４ ケーシング ２５ 水抜き開口 ２６ セグメント ２７ 側板 ２８ エキスパンドメタル ２９ 木炭 1 Concrete Dam 2 Intake Port 3 Corrugated Plate 4 Segment 5 Angle Material 6 Side Plate 7 Slope 8 Drain Hole 9 Flat Plate 10 Angle Frame 11 Top Plate 12 Bottom Plate 13, 13 'Water-permeable Semi-cylindrical Body 14 Expanded Metal 15 Angle Material 16 Inside Plate 17 Activated carbon 18 Stone 19, 19 'Water purification device 23 Inclined plate 24 Casing 25 Draining opening 26 Segment 27 Side plate 28 Expanded metal 29 Charcoal
Claims (2)
で、水を通し、石を通さない孔あき板又は鉄筋網若しく
はルーバーのケーシングからなる側板と天板と底板とに
より構成された透水性筒体を配設固定し、この透水性筒
体の少なくとも内面に活性炭又は木炭を収納すると共
に、透水性筒体の外側周囲に多数の石を配設したことを
特徴とするコンクリートダム取水口に於ける水質浄化装
置。1. A water-permeable cylinder that surrounds an upstream concrete dam intake and is composed of a side plate composed of a perforated plate that allows water to pass therethrough and does not allow stones to pass through or a casing of rebar nets or louvers, a top plate and a bottom plate. In a concrete dam intake, characterized by disposing and fixing a body, accommodating activated carbon or charcoal on at least the inner surface of the water permeable cylinder, and disposing a large number of stones around the outer periphery of the water permeable cylinder. A water purification device that removes water.
らなり、該波形板の河川の水流に向って上向きとなる傾
斜面に、多数の水抜き孔が穿設されていることを特徴と
するコンクリートダム取水口に於ける水質浄化装置。2. A casing side plate of a perforated plate is formed of a corrugated plate, and a large number of water drain holes are formed in an inclined surface of the corrugated plate which is directed upward toward a water flow in a river. Water purification device at the concrete dam intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115393A JP3035758B2 (en) | 1992-04-08 | 1992-04-08 | Water purification equipment at the intake of a concrete dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4115393A JP3035758B2 (en) | 1992-04-08 | 1992-04-08 | Water purification equipment at the intake of a concrete dam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05285470A true JPH05285470A (en) | 1993-11-02 |
| JP3035758B2 JP3035758B2 (en) | 2000-04-24 |
Family
ID=14661447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4115393A Expired - Fee Related JP3035758B2 (en) | 1992-04-08 | 1992-04-08 | Water purification equipment at the intake of a concrete dam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3035758B2 (en) |
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| JP2012112217A (en) * | 2010-11-26 | 2012-06-14 | Nippon Steel & Sumikin Metal Products Co Ltd | Stone-filled structure equipped with filter medium storage body, and steel-frame dam |
| JP2013100687A (en) * | 2011-11-09 | 2013-05-23 | Koa Corp | Water intake apparatus |
| WO2016143190A1 (en) * | 2015-03-12 | 2016-09-15 | 日立造船株式会社 | Infiltration water intake system for revetment wall |
| CN107740383A (en) * | 2017-10-20 | 2018-02-27 | 水利部水工金属结构质量检验测试中心 | A kind of light-weighted corrugated plating gate |
| US10125034B2 (en) | 2014-05-12 | 2018-11-13 | Erick Mcwayne | Permeable reactive weir |
| KR102037464B1 (en) * | 2019-01-09 | 2019-11-26 | 주식회사 대흥미래기술 | Multifunctional debris flow reduction facility part transmission type assembly |
| CN110563073A (en) * | 2019-09-19 | 2019-12-13 | 合肥固本信息科技服务有限公司 | Ecological dam |
| KR102170356B1 (en) * | 2020-02-14 | 2020-10-27 | 주식회사 대흥미래기술 | Debris flow reduction facility part transmission type assembly |
| CN115105873A (en) * | 2022-05-24 | 2022-09-27 | 苏州园科生态建设集团有限公司 | Ecological remediation system for rural water environment |
-
1992
- 1992-04-08 JP JP4115393A patent/JP3035758B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012112217A (en) * | 2010-11-26 | 2012-06-14 | Nippon Steel & Sumikin Metal Products Co Ltd | Stone-filled structure equipped with filter medium storage body, and steel-frame dam |
| JP2013100687A (en) * | 2011-11-09 | 2013-05-23 | Koa Corp | Water intake apparatus |
| US10125034B2 (en) | 2014-05-12 | 2018-11-13 | Erick Mcwayne | Permeable reactive weir |
| US20180056213A1 (en) * | 2015-03-12 | 2018-03-01 | Hitachi Zosen Corporation | Infiltration intake system for revetment wall |
| CN107429503A (en) * | 2015-03-12 | 2017-12-01 | 日立造船株式会社 | Revetment infiltration water intake system |
| JP2016169517A (en) * | 2015-03-12 | 2016-09-23 | 日立造船株式会社 | Infiltration intake system for revetment wall |
| WO2016143190A1 (en) * | 2015-03-12 | 2016-09-15 | 日立造船株式会社 | Infiltration water intake system for revetment wall |
| AU2015386029B2 (en) * | 2015-03-12 | 2019-03-14 | Hitachi Zosen Corporation | Infiltration intake system for revetment wall |
| US10272367B2 (en) | 2015-03-12 | 2019-04-30 | Hitachi Zosen Corporation | Infiltration intake system for revetment wall |
| CN107740383A (en) * | 2017-10-20 | 2018-02-27 | 水利部水工金属结构质量检验测试中心 | A kind of light-weighted corrugated plating gate |
| KR102037464B1 (en) * | 2019-01-09 | 2019-11-26 | 주식회사 대흥미래기술 | Multifunctional debris flow reduction facility part transmission type assembly |
| CN110563073A (en) * | 2019-09-19 | 2019-12-13 | 合肥固本信息科技服务有限公司 | Ecological dam |
| KR102170356B1 (en) * | 2020-02-14 | 2020-10-27 | 주식회사 대흥미래기술 | Debris flow reduction facility part transmission type assembly |
| CN115105873A (en) * | 2022-05-24 | 2022-09-27 | 苏州园科生态建设集团有限公司 | Ecological remediation system for rural water environment |
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|---|---|
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