JPS62277112A - Removing method and treatment of precipitate settled in reservoir - Google Patents
Removing method and treatment of precipitate settled in reservoirInfo
- Publication number
- JPS62277112A JPS62277112A JP11749986A JP11749986A JPS62277112A JP S62277112 A JPS62277112 A JP S62277112A JP 11749986 A JP11749986 A JP 11749986A JP 11749986 A JP11749986 A JP 11749986A JP S62277112 A JPS62277112 A JP S62277112A
- Authority
- JP
- Japan
- Prior art keywords
- pressure water
- reservoir
- slurry
- main pipe
- precipitate
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000002244 precipitate Substances 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000013049 sediment Substances 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract 2
- 238000004062 sedimentation Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- -1 gravel Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［発明の目的］
（産業上の利用分野）
本発明は水力発電用ダム又は飲料水用の貯水池その他多
目的の貯水池等の沈ｙ物除去処理方法に関するものであ
る。Detailed Description of the Invention 3. Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention is directed to a method for removing sediment from hydroelectric dams, drinking water reservoirs, and other multi-purpose reservoirs. It is about the method.
（従来の技術）
水力発電用ダム又は飲料水用の貯水池は、流入する水流
に９拌して運び込まれる固形物（ヘドロ・砂・礫）の沈
澱により径時的に埋め立てられ、貯水容量か減少し、貯
水池としての機能劣化を来たし名化しつつあるのか現状
である。(Prior art) Dams for hydroelectric power generation or reservoirs for drinking water are reclaimed over time due to sedimentation of solid matter (sludge, sand, gravel) that is stirred and carried by the inflowing water flow, reducing the water storage capacity. However, the current situation is that the function as a reservoir has deteriorated and it is becoming famous.
上述のへトロ・砂・礫等の軟泥又は固形物は貯水池の底
で圧密沈積が経時的に進行し固くなり、次第に掘削しな
いと除去し難い性状を呈する様になる。The above-mentioned soft sludge, sand, gravel, and other solid materials undergo consolidation and sedimentation at the bottom of the reservoir over time, becoming hard, and gradually becoming difficult to remove without excavation.
上述の軟泥又は固形物の除去方法として、従前は一定の
期間毎に貯水池の水位を順次低くし最終的に池の底に設
けている栓を扶いて除去する方法が講しられていたが、
小規模のものについては可能であるが、大規模な貯水池
においては、それ自体の負う公共的性格等より見て現状
では実質か難しく往この方法は下流での流水を濁すこと
等かあり漁業への悪影響その他の理由により許可されな
い。Previously, the method for removing the soft sludge or solids described above was to lower the water level in the reservoir at regular intervals and finally remove it using a plug installed at the bottom of the pond.
Although it is possible for small-scale reservoirs, it is currently difficult to do so due to the public nature of large-scale reservoirs. Not permitted due to adverse effects or other reasons.
従来の沈澱物除去手段として、
ａ）淳渫船によるクラブバケットを使用した固形物の除
去。Conventional means of sediment removal include: a) Removal of solids using a crab bucket by a tugboat.
ｂ）バケットエレベータ−（移動式）型機械による固形
物の除去。b) Removal of solids by bucket elevator-(mobile) type machines.
Ｃ）スラリーポンプによる軟泥上の移動埋立て。C) Mobile landfill on soft mud by slurry pump.
ｄ）底部にホースを降しスラリーとして固形物を真空ポ
ンプて吸Ｅげ、固液分離器を用いて分離させる方法。d) A method in which a hose is lowered to the bottom, the solids are sucked up as a slurry using a vacuum pump, and then separated using a solid-liquid separator.
笠か用いられていたか、前記従来の方法においては水深
が２０〜３０ｍ程度の底部軟泥又は固形物除去であるが
主に軟泥上の除去であり、沈澱圧密され固化物と化した
ものを除去することは困難である。In the conventional method mentioned above, the water depth is about 20 to 30 meters, and the removal of soft mud or solid matter is mainly done on the soft mud, and it is the removal of solid matter that has been settled and consolidated. That is difficult.
貯水池は水力発電用のダム又は飲料水用又は多目的の貯
水池としての機能を維持しつつ底部沈澱￥１Ｒ除去か必
要となるか、この除去目的に適用可能なものとして昨今
水中ブルドーザ−（遠隔操作）水中ロボット（遠隔操作
）′Ｓ開発されて来たか、これらの適用は深さ２０〜３
０ｍの貯水池比であり且貯水池の水を汚濁させるので漁
業への悪影響等あり問題を内包している。While maintaining the function of a reservoir as a dam for hydroelectric power generation, drinking water, or a multi-purpose reservoir, it is necessary to remove 1R of sediment from the bottom. Underwater robots (remote control) have been developed and their applications are at depths of 20 to 3
Since the reservoir ratio is 0 m and it pollutes the water in the reservoir, it has a negative impact on fisheries and other problems.
（発明か解決しようとする問題点）
そこて、本発明においては、貯水池の水深如何に制限さ
れることなく貯水池底部へ沈積したヘドロ又は固形化し
た沈澱物の除去が可能で、除去作業中における貯水の汚
濁を許容値以下とし漁業に対する悪Ｚ”Ｗを排除するこ
とかてきる方法を提供しようとするものである。(Problem to be solved by the invention) Therefore, in the present invention, it is possible to remove the sludge or solidified sediment deposited at the bottom of the reservoir regardless of the water depth of the reservoir, and during the removal work, The purpose is to provide a method that can reduce the pollution of stored water to below permissible levels and eliminate the negative effects on fisheries.
［発明の構成コ
（問題点を解決するための手段）
本発明における貯水池の沈澱物除去処理方法は、貯水池
底部に沈澱ししている沈澱物に対し、高圧水を噴射して
沈澱物を掘削スラリー化させ、当該スラリーを吸引管で
吸引して地上の固形物分離器に送り、固体と液体に分離
させるものである。[Configuration of the Invention (Means for Solving Problems) The method for removing sediment from a reservoir according to the present invention includes excavating the sediment by injecting high-pressure water to the sediment that has settled at the bottom of the reservoir. The slurry is made into a slurry, and the slurry is sucked through a suction tube and sent to an above-ground solids separator, where it is separated into solids and liquids.
（実施例）
本発明を図面に基いて具体的に説明すると、高圧水の噴
射は噴射袋と１によって行う。噴射装置１は、第２，３
図に示すように、高圧水本管２に多数の分岐管３，３．
・・・を逆〈字形に形成して放射状に配置し、各分岐管
３，３．・・・に１個乃至２個の枝管４，４．・・・を
垂直に垂下し、各分岐管３、・・・及び各枝管４．・・
・の先端（下端）に高圧水ノズル５．・・・を取付け、
各高圧水ノズル５．・・−から高圧水を沈澱物に噴射し
てヘドロ又は圧密沈積して固形化したヘドロ・砂・礫等
をスラリー化させる。(Example) To explain the present invention in detail based on the drawings, high-pressure water is jetted by a jetting bag and 1. The injection device 1 has second and third
As shown in the figure, a high-pressure water main pipe 2 has a large number of branch pipes 3, 3.
... are formed in an inverted 〈 shape and arranged radially, and each branch pipe 3, 3. . . . one or two branch pipes 4, 4. ... are hung vertically, and each branch pipe 3, ... and each branch pipe 4.・・・
・High pressure water nozzle at the tip (lower end) of 5. ...install it,
Each high pressure water nozzle5. ...- to inject high-pressure water onto the sediment to turn sludge or sludge, sand, gravel, etc. that has solidified through consolidation sedimentation into a slurry.
尚、各分岐管３，３．・・−及び枝管４．４．・・・は
カバー６を貫通し、外周に位置した各分岐管３゜３、・
・・はカバー６に固定することにより、位置が固定され
るようになっている。このカバー６は外周に周囲壁７を
設け、周囲壁７の下面にジャバラ部８を設けて、周囲を
被うようになし、高圧水ノズル５．・・・からの噴射に
よりスラリー化した沈澱物を逸散させないようにする。In addition, each branch pipe 3, 3. ...- and branch pipes 4.4. . . penetrates the cover 6 and is located on the outer periphery of each branch pipe 3゜3, .
... is fixed in position by being fixed to the cover 6. This cover 6 has a surrounding wall 7 on its outer periphery, a bellows part 8 on the lower surface of the surrounding wall 7 to cover the surroundings, and a high-pressure water nozzle 5. Prevent the slurry-formed precipitate from escaping by spraying from...
又、枝管４，４．・・・の下端近傍及び中央に複数個の
スラリー吸引管９を開口し、各スラリー吸引管９を吸引
本管１０に接続し、吸引木管１０を高圧水本管２の内部
に貫通させて、スラリー化した沈澱物を吸引するように
なっている。Also, branch pipes 4, 4. A plurality of slurry suction pipes 9 are opened near the lower end and in the center, each slurry suction pipe 9 is connected to a suction main pipe 10, and the suction wood pipe 10 is penetrated into the high-pressure water main pipe 2. It is designed to suck up sediment that has become a slurry.
前記の高圧水水ｖ２と吸引木管１０とは、第１図に示す
ように貯水池１１に浮かせた筏１２から下降させており
、自重て底に沈下するようになっている。一方反対側は
陸上に位置するが、両対岸に跨って設けたケーブル１３
によって支持され、移動できるようになっており、高圧
水木管２は高圧水ポンプ１４に接続して高圧水を噴射て
きるようになっている。又、吸引本管ＩＯは固形物分離
器１５に接続している。The high-pressure water v2 and the suction wood pipe 10 are lowered from a raft 12 floating on a reservoir 11, as shown in FIG. 1, so that they sink to the bottom under their own weight. On the other hand, the opposite side is located on land, but the cable 13 is installed across both opposite shores.
The high-pressure water pipe 2 is connected to a high-pressure water pump 14 to spray high-pressure water. Further, the suction main pipe IO is connected to the solids separator 15.
固形物分離器１５はハイドロクロン１６とシックナー１
７とで構成しており、吸引本管１０はハイドロクロン１
６の上部側面に接続され、ハイドロクロン■６の上面を
貫通した導管１８を吸引ポンプ１９に接続することによ
りスラリーを吸い揚げるようになっている。そして、吸
引ポンプ１９は吸い上げたスラリーから分離した液体を
導水管２０て前記高圧水ポンプ１４に送って高圧水木管
２に再び戻すようになっている。又導水管２０から分岐
した分岐導管２１て沈降速度の８い固形物を沈澱槽２２
に送り、沈澱槽２２からオーバフローした水は貯水池１
１に戻す。The solid separator 15 has a hydroclone 16 and a thickener 1.
7, and the main suction pipe 10 is a hydroclone 1.
The slurry is sucked up by connecting a conduit 18 which is connected to the upper side of the hydroclone 6 and passes through the upper surface of the hydroclone 6 to a suction pump 19. The suction pump 19 sends the liquid separated from the sucked slurry to the high-pressure water pump 14 through the water conduit 20 and returns it to the high-pressure water pipe 2 again. In addition, a branch pipe 21 branched from the water pipe 20 transports solids with a sedimentation rate of 8 to a settling tank 22.
The water that overflows from the sedimentation tank 22 is sent to the reservoir 1.
Return to 1.
一方、ハイドロクロン１６の下方に設置したシックナー
１７にはへトロ、砂、礫等の固形物及び固形物に付着し
た水分が滞溜し、沈降速度の遅い固形物は前記沈澱槽２
２に送られ、沈降速度の速い固形物は底に沈降し、適当
に取出す。On the other hand, in the thickener 17 installed below the hydroclone 16, solid substances such as dirt, sand, gravel, etc. and water attached to the solid substances accumulate, and solid substances with a slow settling speed are collected in the settling tank 2.
2, solids with a high settling rate settle to the bottom and are taken out appropriately.
尚、シックナー１７は第４図に示すように傾斜したスク
リューコンベヤー２３を設けて取出すようにすれば便利
である。It is convenient to take out the thickener 17 by providing an inclined screw conveyor 23 as shown in FIG.
尚、陸上にブラウン管２４を設置して光ファイバーを用
いて底部設置状況及び稼動状況を映像化すると状況判断
か容易である。Incidentally, the situation can be easily determined by installing a cathode ray tube 24 on land and visualizing the bottom installation situation and operating situation using optical fiber.
前記説明においては、ハイドロクロン１６から吸引ポン
プ１９て液体を高圧水ポンプ１４に送り昇圧して高圧水
本管２に送る閉ループを用いたか、閉ループてはなく、
貯水池１１から直接高圧水ポンプ１４に水を送るように
してもよいものである。In the above description, a closed loop was used in which liquid is sent from the hydroclon 16 to the high pressure water pump 14 using the suction pump 19, and the pressure is increased and the liquid is sent to the high pressure water main pipe 2.
Water may also be sent directly from the reservoir 11 to the high-pressure water pump 14.
［発明の効果］
本発明においては、高圧水の噴射により、沈澱物を掘削
しスラリー化して吸引除去をするのて、貯水の深さか３
０ｍ以上てあっても沈澱物の除去を簡単に行うことがて
きる。[Effects of the Invention] In the present invention, the precipitate is excavated by high-pressure water injection, turned into slurry, and removed by suction.
Precipitates can be easily removed even if the distance is 0 m or more.
又、貯水池の水の汚濁を許容値以下にして漁業に対する
悪影テを与えることなく操業することができる。In addition, it is possible to operate without adversely affecting the fishing industry by keeping the water pollution in the reservoir below the permissible level.
図は本発明に係る貯水池の沈澱物除去処理方法に用いる
装この一例を示すものて、第１図は全体の配ｔを示す正
面図、第２図は噴射装置部分を示す一部を切欠いた正面
図、第３図はその平面図、第４図は固形物分離器の部分
の一例を示す正面図である。
第１図The figure shows an example of a device used in the method for removing sediment from a reservoir according to the present invention. Figure 1 is a front view showing the overall arrangement, and Figure 2 is a partially cutaway view showing the injection device. A front view, FIG. 3 is a plan view thereof, and FIG. 4 is a front view showing an example of a portion of the solid matter separator. Figure 1
Claims (1)
して沈澱物を掘削スラリー化させ、当該スラリーを吸引
管で吸引して地上の固形物分離器に送り、固体と液体に
分離させることを特徴とする貯水池の沈澱物除去処理方
法。High-pressure water is injected into the sediment deposited at the bottom of the reservoir to turn the sediment into drilling slurry.The slurry is sucked through a suction pipe and sent to an above-ground solids separator where it is separated into solids and liquids. A method for removing sediment from a reservoir, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11749986A JPS62277112A (en) | 1986-05-23 | 1986-05-23 | Removing method and treatment of precipitate settled in reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11749986A JPS62277112A (en) | 1986-05-23 | 1986-05-23 | Removing method and treatment of precipitate settled in reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62277112A true JPS62277112A (en) | 1987-12-02 |
Family
ID=14713250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11749986A Pending JPS62277112A (en) | 1986-05-23 | 1986-05-23 | Removing method and treatment of precipitate settled in reservoir |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62277112A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655006A (en) * | 1992-08-07 | 1994-03-01 | Mitsuhiro Takeda | Sludge collecting and discharging method and device therefor |
| JPH07100467A (en) * | 1993-10-01 | 1995-04-18 | Asahi Tec Corp | Method for removing grit in grit chamber and apparatus for it |
| JP2000257108A (en) * | 1999-03-10 | 2000-09-19 | I M Kogyo Kk | Dredging device of underwater sludge sedimented on bottom of reservoir, river or the like |
| KR100808243B1 (en) | 2006-10-24 | 2008-02-29 | 박중민 | Dredging apparatus |
| CN102454178A (en) * | 2010-10-27 | 2012-05-16 | 中交上海航道勘察设计研究院有限公司 | Wharf bottom dredging machine and dredging method thereof |
| WO2018142591A1 (en) * | 2017-02-03 | 2018-08-09 | 株式会社アースサイン | Suction device for turbid water in lake, pond, river, canal and the like, and turbid water suction method |
| JP2022149640A (en) * | 2021-03-25 | 2022-10-07 | 株式会社日本海洋サービス | Dredging device |
-
1986
- 1986-05-23 JP JP11749986A patent/JPS62277112A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655006A (en) * | 1992-08-07 | 1994-03-01 | Mitsuhiro Takeda | Sludge collecting and discharging method and device therefor |
| JPH07100467A (en) * | 1993-10-01 | 1995-04-18 | Asahi Tec Corp | Method for removing grit in grit chamber and apparatus for it |
| JP2000257108A (en) * | 1999-03-10 | 2000-09-19 | I M Kogyo Kk | Dredging device of underwater sludge sedimented on bottom of reservoir, river or the like |
| KR100808243B1 (en) | 2006-10-24 | 2008-02-29 | 박중민 | Dredging apparatus |
| CN102454178A (en) * | 2010-10-27 | 2012-05-16 | 中交上海航道勘察设计研究院有限公司 | Wharf bottom dredging machine and dredging method thereof |
| WO2018142591A1 (en) * | 2017-02-03 | 2018-08-09 | 株式会社アースサイン | Suction device for turbid water in lake, pond, river, canal and the like, and turbid water suction method |
| JP2022149640A (en) * | 2021-03-25 | 2022-10-07 | 株式会社日本海洋サービス | Dredging device |
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